Suffix

Whether ball bearings, deep groove ball bearings or housing bearings - many rolling bearings are defined in more detail by suffixes. These designations are standardized in accordance with DIN 623 and are used for the uniform classification and description of rolling bearings to enable clear identification and selection. We have compiled the lists to the best of our knowledge in order to provide our customers with a reliable guide.
Nevertheless, we would like to point out that the availability and specifications of rolling bearings may change over time. We cannot guarantee that the information is up-to-date, correct and complete. It is the responsibility of the user to check the information and, if necessary, to obtain up-to-date data directly from the manufacturer or an authorized dealer to ensure that the required bearings meet the requirements and standards.

Suffix Schaeffler

Product group	Suffix	Description
Adapter sleeves	HG	Hydraulic adapter sleeve with oil slots on the taper face
Adapter sleeves	HGJ	Hydraulic adapter sleeve with oil slots on the taper face and in the bore
Adapter sleeves	HK	Design as for HG, but with oil connectors on the opposing axial face
Adapter sleeves	HKJ	Design as for HGJ, but with oil connectors on the opposing axial face
Axial cylindrical roller bearings	M	Solid brass cage
Axial cylindrical roller bearings	TV	Solid cage made from glass fibre reinforced polyamide PA66
Axial cylindrical roller bearings	P5	High dimensional, geometrical and running accuracy
Axial deep groove ball bearings	MP	Solid brass cage, ball-guided
Axial deep groove ball bearings	P5	Bearing in tolerance class 5
Axial deep groove ball bearings	P6	Bearing in tolerance class 6
Axial needle roller bearings	RR	Corrosion-resistant design, with Corrotect coating
Axial needle roller bearings	TV	Plastic cage made from glass fibre reinforced polyamide PA66
Axial spherical roller bearings	E1	Increased capacity design
Axial spherical roller bearings	MB	Solid brass cage
Axial spherical roller bearings	N1	One retaining slot in the housing locating washer
Axial spherical roller bearings	N2	Two retaining slots offset by 180° in the housing locating washer
Axial spherical roller bearings	THI	3 uniformly distributed threaded holes in one end face of the shaft locating washer
Axial spherical roller bearings	THIE	3 uniformly distributed threaded holes in one end face of the shaft locating washer, incl. suitable eye bolts
Axial spherical roller bearings	THO	3 uniformly distributed threaded holes in one end face of the housing locating washer
Axial spherical roller bearings	THOE	3 uniformly distributed threaded holes in one end face of the housing locating washer, incl. suitable eye bolts
Axial spherical roller bearings	XL	X-life bearing
Barrel roller bearings	C2	Radial internal clearance C2 (smaller than normal)
Barrel roller bearings	C3	Radial internal clearance C3 (larger than normal)
Barrel roller bearings	C4	Radial internal clearance C4 (larger than C3)
Barrel roller bearings	CN	Radial internal clearance CN (normal)
Barrel roller bearings	K	Tapered bore, taper 1:12
Barrel roller bearings	MB	Solid brass cage, guided on inner ring
Barrel roller bearings	TVP	Solid cage made from glass fibre reinforced polyamide PA66
Combined needle roller bearings	TV	Bearing with radial cage made from glass fibre reinforced polyamide 66
Combined needle roller bearings	XL	X-life bearing
Combined needle roller bearings	Z	Bearing with end cap, axial bearing component greased with lithium complex soap grease to GA08
Crossed roller bearings	RR	Corrosion-resistant design, with Corrotect coating
Crossed roller bearings	RL0	Low clearance
Crossed roller bearings	VSP	Preloaded
Crossed roller bearings	VSP+PRL50	Preloaded, axial and radial runout tolerance restricted by 50%
Cylindrical roller bearings with annular slots (rope sheave bearings)	C3	Radial internal clearance C3 (larger than normal)
Cylindrical roller bearings with annular slots (rope sheave bearings)	C4	Radial internal clearance C4 (larger than C3)
Cylindrical roller bearings with annular slots (rope sheave bearings)	C5	Radial internal clearance C5 (larger than C4)
Cylindrical roller bearings with annular slots (rope sheave bearings)	D	Improved outer ring profile, with an enlarged load-bearing area and optimised edge transitions
Cylindrical roller bearings with annular slots (rope sheave bearings)	GA22	Bearing greased with lithium soap grease GA22 for expanded temperature range
Cylindrical roller bearings with annular slots (rope sheave bearings)	P	Contact seal on one side
Cylindrical roller bearings with annular slots (rope sheave bearings)	PP	Contact seal on both sides
Cylindrical roller bearings with annular slots (rope sheave bearings)	RR	Corrosion-resistant design, with Corrotect coating
Cylindrical roller bearings with annular slots (rope sheave bearings)	2NR	Supplied with two loose-packed retaining rings WRE
Cylindrical roller bearings with annular slots (rope sheave bearings)	2WR	Supplied with two loose-packed retaining rings WR
Cylindrical roller bearings with annular slots (rope sheave bearings)	–	Without seals
Cylindrical roller bearings with disc cage or with spacers	BIR	Inner ring raceway ground slightly spherical
Cylindrical roller bearings with disc cage or with spacers	BR	Black oxide coated
Cylindrical roller bearings with disc cage or with spacers	C3	Radial internal clearance C3 (larger than normal)
Cylindrical roller bearings with disc cage or with spacers	C4	Radial internal clearance C4 (larger than C3)
Cylindrical roller bearings with disc cage or with spacers	C5	Radial internal clearance C5 (larger than C4)
Cylindrical roller bearings with disc cage or with spacers	TB	Bearing with increased axial load carrying capacity
Cylindrical roller bearings with disc cage or with spacers	XL	X-life bearing
Double row angular contact ball bearings	B	Modified internal construction, nominal contact angle α = 25°, without filling slot
Double row angular contact ball bearings	BD	Modified internal construction, nominal contact angle α = 30°, without filling slot
Double row angular contact ball bearings	C2	Axial internal clearance C2 (smaller than normal)
Double row angular contact ball bearings	C3	Axial internal clearance C3 (larger than normal)
Double row angular contact ball bearings	C4	Axial internal clearance C4 (larger than C3)
Double row angular contact ball bearings	DA	Inner ring split, nominal contact angle α = 45°
Double row angular contact ball bearings	M	Solid brass cage, ball-guided
Double row angular contact ball bearings	MA	Solid brass cage, guided on outer ring
Double row angular contact ball bearings	TVH	Solid cage made from glass fibre reinforced polyamide PA66, ball-guided
Double row angular contact ball bearings	2HRS	Contact seal on both sides, axial contact (lip seal)
Double row angular contact ball bearings	2RS	Contact seal on both sides, axial contact (lip seal)
Double row angular contact ball bearings	2RSR	Contact seal on both sides, radial contact (lip seal)
Double row angular contact ball bearings	2RZ	Non-contact seal on both sides (rubberised gap seal)
Double row angular contact ball bearings	2Z	Non-contact sealing shield on both sides (sheet metal gap seal)
Double row angular contact ball bearings	HRS	Contact seal on one side, axial contact (lip seal)
Double row angular contact ball bearings	RS	Contact seal on one side, axial contact (lip seal)
Double row angular contact ball bearings	RSR	Contact seal on one side, radial contact (lip seal)
Double row angular contact ball bearings	RZ	Non-contact seal on one side (rubberised gap seal)
Double row angular contact ball bearings	Z	Non-contact sealing shield on one side (sheet metal gap seal)
Double row angular contact ball bearings	XL	X-life bearing, dependent on bore code and bearing type
Double row deep groove ball bearings	B	Modified internal construction
Double row deep groove ball bearings	BB	Modified internal construction
Double row deep groove ball bearings	TVH	Solid cage made from glass fibre reinforced polyamide PA66
Double row full complement cylindrical roller bearings	BR	Black oxide coated
Double row full complement cylindrical roller bearings	C3	Radial internal clearance C3 (larger than normal)
Double row full complement cylindrical roller bearings	C4	Radial internal clearance C4 (larger than C3)
Double row full complement cylindrical roller bearings	C5	Radial internal clearance C5 (larger than C4)
Double row full complement cylindrical roller bearings	TB	Bearing with increased axial load carrying capacity
Double row full complement cylindrical roller bearings	XL	X-life bearing
Drawn cup needle roller bearings	AS1	With lubrication hole from HK0609
Drawn cup needle roller bearings	GA08	Unsealed, greased bearings for operating temperatures from –20 °C to +140 °C
Drawn cup needle roller bearings	RS	Contact seal on one side
Drawn cup needle roller bearings	TV	Cage made from glass fibre reinforced polyamide PA66
Drawn cup needle roller bearings	ZW	Double row design, with lubrication hole
Drawn cup needle roller bearings	2RS	Contact seal on both sides
Drawn cup roller clutches	–	Steel springs
Drawn cup roller clutches	KF	Plastic pressure springs
Drawn cup roller clutches	R	Knurled outside surface
Drawn cup roller clutches	RR	Drawn cup roller clutch with Corrotect coating
Four point contact bearings	C2	Axial internal clearance C2 (smaller than normal)
Four point contact bearings	C3	Axial internal clearance C3 (larger than normal)
Four point contact bearings	C4	Axial internal clearance C4 (larger than C3)
Four point contact bearings	MPA	Solid brass cage, guided on outer ring
Four point contact bearings	TVP	Solid cage made from glass fibre reinforced polyamide PA66
Four point contact bearings	XL	X-life bearing
Four point contact bearings	N2	Two retaining slots in outer ring
Inner rings	C2	Radial internal clearance C2 (smaller than normal)
Inner rings	C3	Radial internal clearance C3 (larger than normal)
Inner rings	C4	Radial internal clearance C4 (larger than C3)
Inner rings	EGS	Surface ground free from spiral marks for rotary shaft seals to DIN 3760 and DIN 3761
Inner rings	IS1	With lubrication hole
Inner rings	VGS	Machining allowance “z” on raceway
Locknuts	H	Locknuts with threaded holes for mounting screws
Locknuts	HP	Locknuts with threaded holes for mounting screws and through hole for oil connector to withdrawal sleeves
Needle roller and cage assemblies	TV	Cage made from glass fibre reinforced polyamide PA66
Needle roller and cage assemblies	ZW	Double row design (only available in certain enveloping circle diameters)
Needle roller bearings, aligning needle roller bearings	ASR1	Lubrication hole and lubrication groove in the outer ring, dependent on the size
Needle roller bearings, aligning needle roller bearings	C3	Radial internal clearance C3 (larger than normal)
Needle roller bearings, aligning needle roller bearings	D	Bearing with improved steel cage for downsizing option
Needle roller bearings, aligning needle roller bearings	IS1	Lubrication hole in the inner ring, dependent on the size
Needle roller bearings, aligning needle roller bearings	P5	Bearing with high dimensional, geometrical and running accuracy
Needle roller bearings, aligning needle roller bearings	RSR	Contact seal on one side (lip seal)
Needle roller bearings, aligning needle roller bearings	TV	Bearing with cage made from glass fibre reinforced polyamide PA66
Needle roller bearings, aligning needle roller bearings	TW	Bearing with cage made from glass fibre reinforced polyamide PA66 and two short needle rollers per cage pocket
Needle roller bearings, aligning needle roller bearings	XL	X-life bearing
Needle roller bearings, aligning needle roller bearings	ZW	Double row design, dependent on the size
Needle roller bearings, aligning needle roller bearings	2RSR	Contact seal on both sides (lip seal)
Radial insert ball bearings	AS2/V	Bearing outer ring with two lubrication holes in two offset planes (instead of one plane)
Radial insert ball bearings	B	Bearing with spherical outside surface of outer ring
Radial insert ball bearings	2C	Flinger shield on both sides
Radial insert ball bearings	FA	Manufacturing variant
Radial insert ball bearings	FA101	High and low temperature design –40 °C to +180 °C
Radial insert ball bearings	FA106	Bearing subjected to special noise testing
Radial insert ball bearings	FA107	Bearing with lubrication holes on the locating side
Radial insert ball bearings	FA125	With Corrotect coating, corrosion-resistant
Radial insert ball bearings	FA164	High temperature design from +150 °C to +250 °C
Radial insert ball bearings	KRR	Lip seal on both sides (seal R)
Radial insert ball bearings	KLL	Labyrinth seal on both sides (seal L)
Radial insert ball bearings	KTT	Triple lip seal on both sides (seal T)
Radial insert ball bearings	NPP	Lip seal on both sides (seal P)
Radial insert ball bearings	2RSR	Lip seal on both sides (vulcanised)
Radial insert ball bearings	AH	Features differing from the original
Radial insert ball bearings	NR	Slot and snap ring for radial insert ball bearing with cylindrical outer ring
Radial insert ball bearings	OSE	Bearing without locking element (eccentric locking collar)
Radial insert ball bearings	XL	Bearing design in X-life quality
Radial insert ball bearings/(self-aligning) deep groove ball bearings	L402/70	Grease code according to Schaeffler standard, 70% grease quantity
Radial insert ball bearings/(self-aligning) deep groove ball bearings	GA47/70	Grease Group, 70% grease quantity
Sealing rings	FPM	Sealing rings G and GR for temperatures of –20 °C to +160 °C or circumferential velocities of up to 16 m/s
Sealing rings	HNBR	Sealing rings G and GR for temperatures of –30 °C to +140 °C or circumferential velocities of up to 12 m/s
Self-aligning ball bearings	C3	Radial internal clearance C3 (larger than normal)
Self-aligning ball bearings	CN	Radial internal clearance CN (normal)
Self-aligning ball bearings	K	Tapered bore
Self-aligning ball bearings	M	Solid brass cage
Self-aligning ball bearings	TVH	Solid cage made from glass fibre reinforced polyamide PA66
Self-aligning ball bearings	2RS	Contact seal on both sides
Single row angular contact ball bearings	B	Modified internal construction, nominal contact angle α = 40°
Single row angular contact ball bearings	JP	Sheet steel cage
Single row angular contact ball bearings	MP	Solid brass cage
Single row angular contact ball bearings	TVH, TVP	Solid cage made from glass fibre reinforced polyamide PA66
Single row angular contact ball bearings	P5	Bearing in tolerance class 5
Single row angular contact ball bearings	2RS	Contact seal on both sides (lip seal)
Single row angular contact ball bearings	UA	Universal design for fitting in pairs, bearing pair has a small axial internal clearance in O and X arrangement
Single row angular contact ball bearings	UB	Universal design for fitting in pairs, bearing pair has a smaller axial internal clearance in O and X arrangement than in UA
Single row angular contact ball bearings	UH	Universal design for fitting in pairs, bearing pair has a high preload in O and X arrangement
Single row angular contact ball bearings	UL	Universal design for fitting in pairs, bearing pair has a light preload in O and X arrangement
Single row angular contact ball bearings	UM	Universal design for fitting in pairs, bearing pair has a moderate preload in O and X arrangement
Single row angular contact ball bearings	UO	Universal design for fitting in pairs, bearing pair is clearance-free in O and X arrangement
Single row angular contact ball bearings	XL	X-life bearing, dependent on bore code and bearing type
Single row cylindrical roller bearings with cage	C3	Radial internal clearance C3 (larger than normal)
Single row cylindrical roller bearings with cage	C4	Radial internal clearance C4 (larger than C3)
Single row cylindrical roller bearings with cage	C5	Radial internal clearance C5 (larger than C4)
Single row cylindrical roller bearings with cage	E	Increased capacity design
Single row cylindrical roller bearings with cage	EX	Increased capacity design, design modified in accordance with standard (parts from these bearings must not be interchanged with parts from bearings of the same size of the previous design E)
Single row cylindrical roller bearings with cage	JP3	Sheet steel window cage, single-piece, roller-guided
Single row cylindrical roller bearings with cage	J30P	Black oxide coated (Durotect B)
Single row cylindrical roller bearings with cage	MPAX	Solid brass cage, single-piece, rib-guided on outer ring
Single row cylindrical roller bearings with cage	MPBX	Solid brass cage, single-piece, rib-guided on inner ring
Single row cylindrical roller bearings with cage	M1	Solid brass cage, two-piece, roller-guided
Single row cylindrical roller bearings with cage	M1A	Solid brass cage, two-piece, rib-guided on outer ring
Single row cylindrical roller bearings with cage	M1B	Solid brass cage, two-piece, rib-guided on inner ring
Single row cylindrical roller bearings with cage	TB	Bearing with increased axial load carrying capacity (toroidal crowned design)
Single row cylindrical roller bearings with cage	TVP2	Solid window cage made from glass fibre reinforced polyamide PA66
Single row cylindrical roller bearings with cage	XL	X-life bearing
Single row deep groove ball bearings	C	Deep groove ball bearing, Generation C
Single row deep groove ball bearings	M	Solid brass cage, ball-guided
Single row deep groove ball bearings	MA	Solid brass cage, guided on outer ring rib
Single row deep groove ball bearings	MB	Solid brass cage, guided on inner ring rib
Single row deep groove ball bearings	TVH	Solid cage made from glass fibre reinforced polyamide PA66
Single row deep groove ball bearings	Y	Sheet brass cage
Single row deep groove ball bearings	C2	Radial internal clearance C2 (smaller than normal)
Single row deep groove ball bearings	C3	Radial internal clearance C3 (larger than normal)
Single row deep groove ball bearings	C4	Radial internal clearance C4 (larger than C3)
Single row deep groove ball bearings	CM	Radial internal clearance more closely toleranced than normal
Single row deep groove ball bearings	2BRS	Non-contact seal on both sides (labyrinth seal)
Single row deep groove ball bearings	BRS	Non-contact seal on one side (labyrinth seal)
Single row deep groove ball bearings	2HRS	Contact seal on both sides (lip seal)
Single row deep groove ball bearings	2RSR	Contact seal on both sides (lip seal)
Single row deep groove ball bearings	RSR	Contact seal on one side (lip seal)
Single row deep groove ball bearings	2RZ	Non-contact seal on both sides (rubberised gap seal)
Single row deep groove ball bearings	RZ	Non-contact seal on one side (rubberised gap seal)
Single row deep groove ball bearings	2Z	Non-contact sealing shield on both sides (sheet metal gap seal)
Single row deep groove ball bearings	Z	Non-contact sealing shield on one side (sheet metal gap seal)
Single row deep groove ball bearings	2ELS	Contact seal on both sides (lip seal)
Single row deep groove ball bearings	ELS	Contact seal on one side (lip seal)
Single row deep groove ball bearings	S0	Dimensionally stabilised bearing for operating temperatures up to +150 °C
Single row deep groove ball bearings	S1	Dimensionally stabilised bearing for operating temperatures up to +200 °C
Single row deep groove ball bearings	S2	Dimensionally stabilised bearing for operating temperatures up to +250 °C
Single row full complement cylindrical roller bearings	BR	Black oxide coated
Single row full complement cylindrical roller bearings	C3	Radial internal clearance C3 (larger than normal)
Single row full complement cylindrical roller bearings	C4	Radial internal clearance C4 (larger than C3)
Single row full complement cylindrical roller bearings	C5	Radial internal clearance C5 (larger than C4)
Single row full complement cylindrical roller bearings	E	Increased capacity design
Single row full complement cylindrical roller bearings	TB	Bearing with increased axial load carrying capacity
Single row full complement cylindrical roller bearings	XL	X-life bearing
Spherical roller bearings	A-MA, AS-MA	translation not available
Spherical roller bearings	B-GB1	translation not available
Spherical roller bearings	BE-XL	translation not available
Spherical roller bearings	BE-XL-JPA	translation not available
Spherical roller bearings	BEA-XL-MB1	translation not available
Spherical roller bearings	BEA-XL-MA1	translation not available
Spherical roller bearings	BEA-XL-GB1	translation not available
Spherical roller bearings	E1-XL	translation not available
Spherical roller bearings	E1-XL-TVPB	translation not available
Spherical roller bearings	E1A-XL-M	translation not available
Spherical roller bearings	E1A-XL-MA1	translation not available
Spherical roller bearings	MB, B-MB	translation not available
Spherical roller bearings	MA1	translation not available
Spherical roller bearings	2RSR	translation not available
Spherical roller bearings	2VSR	translation not available
Spherical roller bearings	C2	Radial internal clearance C2 (smaller than normal)
Spherical roller bearings	C3	Radial internal clearance C3 (larger than normal)
Spherical roller bearings	C4	Radial internal clearance C4 (larger than C3)
Spherical roller bearings	H40	Without lubrication groove and lubrication holes
Spherical roller bearings	H40CA	6 lubrication holes in the outer ring
Spherical roller bearings	H40AB	6 lubrication holes in the inner ring
Spherical roller bearings	H40AC	6 lubrication holes and one lubrication groove in the inner ring
Spherical roller bearings	H78(*)	3 uniformly distributed threaded holes in one end face of the outer ring (* weight-oriented module letter, please contact us)
Spherical roller bearings	H151	One 45° retaining slot in the outer ring
Spherical roller bearings	H151B	One 15° retaining slot in the outer ring
Spherical roller bearings	K	Tapered bore, taper 1:12
Spherical roller bearings	K30	Tapered bore, taper 1:30
Spherical roller bearings	P5	Dimensional and running accuracy in accordance with ISO tolerance class 5
Spherical roller bearings	S	Lubrication groove and lubrication holes in outer ring
Spherical roller bearings	SY	3 lubrication holes in the outer ring, no lubrication groove
Spherical roller bearings	T41A	For oscillating load with restricted diameter tolerances, radial internal clearance C4
Spherical roller bearings	T41D	For oscillating load with restricted diameter tolerances, radial internal clearance C4, bore with thin chromium coating
Spherical roller bearings	W209B	Inner ring made from case hardening steel
Spherical roller bearings	XL	X-life bearing
Tapered roller bearings	A	translation not available
Tapered roller bearings	B	translation not available
Tapered roller bearings	X	translation not available
Tapered roller bearings	XL	translation not available
Tapered roller bearings, matched bearings	DF	translation not available
Tapered roller bearings, matched bearings	A	translation not available
Tapered roller bearings, matched bearings	VA	translation not available
Withdrawal sleeves	H	Hydraulic withdrawal sleeve with oil slots on the taper face and in the bore
Withdrawal sleeves	G	Hydraulic withdrawal sleeve with modified thread G
Yoke type ball bearing track rollers, stud type ball bearing track rollers	DRS	Lip seal on stud side, axial sealing action. Sealing shield with cover on the end face
Yoke type ball bearing track rollers, stud type ball bearing track rollers	IS1	Lubrication hole in inner ring
Yoke type ball bearing track rollers, stud type ball bearing track rollers	RR	Protected against corrosion by Corrotect special coating
Yoke type ball bearing track rollers, stud type ball bearing track rollers	TVH	Cage made from glass fibre reinforced polyamide
Yoke type ball bearing track rollers, stud type ball bearing track rollers	X	Cylindrical outside surface
Yoke type ball bearing track rollers, stud type ball bearing track rollers	XL	X-life design
Yoke type ball bearing track rollers, stud type ball bearing track rollers	2HRS	Lip seal on both sides with optimised geometry, low friction
Yoke type ball bearing track rollers, stud type ball bearing track rollers	2RS	Lip seal on both sides, with axial sealing action
Yoke type ball bearing track rollers, stud type ball bearing track rollers	2RSR	Lip seal on both sides, with radial sealing action
Yoke type ball bearing track rollers, stud type ball bearing track rollers	2Z	Sealing shield on both sides
Yoke type roller bearing track rollers, stud type roller bearing track rollers	PP	Plastic axial plain washer with formed seal lip on both sides of the bearing, giving a three-stage seal
Yoke type roller bearing track rollers, stud type roller bearing track rollers	RR	Protected against corrosion by Corrotect special coating in the case of PWTR..-2RS and PWKR(E)..-2RS
Yoke type roller bearing track rollers, stud type roller bearing track rollers	SK	Hexagonal socket only on the flange-side end face, no relubrication facility
Yoke type roller bearing track rollers, stud type roller bearing track rollers	TV	Plastic cage
Yoke type roller bearing track rollers, stud type roller bearing track rollers	XL	X-life design
Yoke type roller bearing track rollers, stud type roller bearing track rollers	2RS	Protected lip seal on both sides
Yoke type roller bearing track rollers, stud type roller bearing track rollers	2RSR	Radial contact lip seal on both sides
Yoke type roller bearing track rollers, stud type roller bearing track rollers	2ZL	Contact washer with lamellar ring on both sides

Suffix NTN-SNR

Suffix	Description
A	Change of internal construction
A	Single row radial ball bearings with high load rating
A	Single row angular contact ball bearings, polyamide cage
A	Double row radial ball bearings, without groove, polyamide cage
A	Double row angular contact ball bearings, without groove, polyamide cage
A	V-ring seal version A for SNC bearings (optionally with FS seal)
AD	Contact angle 25°
A1	Demountable
B	Standard version of spherical roller bearings
B	Contact angle 40° for angular contact ball bearings
B	32° for 2-row angular contact ball bearings
B	40° for 1-row angular contact ball bearings
B	20° for tapered roller bearings
BG	Single row angular contact ball bearings for universal pairing without preload
B3, B5, B7	Precision according to ABEC 3, 5 or 7 standards
C	Contact angle 15° for angular contact ball bearings
C	Enlarged contact angle for tapered roller bearings
C9, C0, C1	High accuracy game
C2	Internal clearance smaller than normal
C3	Internal clearance greater than normal
C4	Internal clearance greater than C3
C5	Internal clearance greater than C4
CMxx	Average internal clearance in microns for ball bearings from diameter 10 to 50 mm
CM09	Special clearance, between 5 and 13 μm
CM13	Special clearance, between 9 and 17 μm
CM17	Special clearance between 13 and 21 μm
CM21	Special clearance between 17 and 25 μm
CM25	Special clearance, between 21 and 29 μm
CM30	Special clearance between 25 and 35 μm
CM35	Special clearance, between 30 and 40 μm
CM40	Special clearance between 35 and 45 μm
CM45	Special clearance, between 40 and 50 μm
CM50	Special clearance between 45 and 55 μm
CSxx	Average bearing clearance in microns (1 micron = 1μm = 0.001 mm)
CT1	Low temperature storage -60 °C
CxNA	Reduced clearance areas (mean internal clearance however identical), grouped rings
CNL, CNS	Internal clearance for precision miniature bearings
C/C12	Interior design index for tapered roller bearings
CC	Closed stainless steel lock for housing bearings
CO	Open stainless-steel lock for housing bearings
D	Enlarged contact angle for tapered roller bearings
D	Lubrication openings (without grooves)
D	High-precision angular contact ball bearings with lubrication
DB	O Arrangement
DF	X Arrangement
D**	SNR lubricating greases
DS	Double lip seal for SNC bearings
DT	T Arrangement
D0	Groove and lubrication openings not available (if standard)
D1	Groove and lubrication openings in the outer ring
D2	D1 + anti-rotation ball on outer diameter for bearing inserts
E	Increased load rating for cylindrical roller bearings and spherical roller bearings
EA	Spherical roller bearings with increased load rating and with a sheet steel cage
EM	Spherical roller bearings with increased load rating and with a solid cage
EE/2RS	Double-sided seal
EC	Sealing for SNC bearings
En	Special crowning of the rollers
F	Full-walled bearing without openings, e.g. SN520F
F1	Full-walled bearing with openings e.g. UCP320F1
F2	Bearings without mounting holes e.g. UCP322F2
FD	Food grade grease
FS	Felt strip seal for SNC bearings
FT150	Sealed bearings for high temperatures up to +150 °C
FT150ZZ	Protected bearings for high temperatures up to +150 °C
F1	Solid steel cage
F3	Solid cage made of parting steel
F600	Bearings for high temperatures for tunnel kiln cars
F604	Bearings for high temperatures for lubricated and protected tunnel kiln cars
F800	Spherical roller bearings for high load capacity for applications with vibration transmissions
-G	Inner ring + rollers (+ cage) for tapered roller bearings
#G	Outer ring only for tapered roller bearings
G	Universal design
G	Disassembly sleeves - modified thread - conformity according to ISO 2982-1
G	Fixed bearing without ring lock e.g. SD3130G
G(n)	Bearings with special fastening openings (n = 1,2,3…). E.g. UCHB204G6
GD2	2 universal bearings in a single housing
GL GN GM GH	Pretension (light, normal, medium, high)
G1	Solid brass cage
G2	Relubrication system for bearing inserts
G14	Polyamide cage
G15	Glass fiber reinforced polyamide cage
H	Clamping sleeves with oil injection device (e.g. AH24T48H)
HT	Special interior design to accommodate axial loads on cylindrical roller bearings
HT2	High temperature storage +200 °C
HT200	Sealed bearings for high temperatures up to +200 °C
HT200ZZ	Protected bearings for high temperatures up to +200 °C
HVZZ	Protected bearings for high speeds up to 700,000 N.Dm
J	Sheet steel cage

K	Conical bore 1/12
K30	Conical bore 1/30
-L	NUP without press plate
#L	Press plate for NUP
L1	Flanged bearing with grease nipple and oil drain opening, e.g. SN515L1Z
L5	Flange bearing with opening for grease nipple and oil drain opening
LA	Labyrinth seal for SNC bearings
LLJ	Bearings with double lip seals and low torque
LLS	High torque triple lip seal bearings
LT	Sealed bearings for low temperatures down to -40 °C
LTZZ	Protected bearings for low temperatures down to -60 °C
LU, LLU	Contact nitrile seal (-20 to +120 °C)
LUA, LLUA	Contacting polyacrylic seal (-15 to +150 °C)
LUA1, LLUA1	Contacting fluorinated elastomer seal (-30 to +230 °C)
LUA2, LLUA2	Contacting silicone seal (-60 to +200 °C)
LUA4, LLUA4	Contacting high nitrile seal (-20 to +140 °C)
LUAX12, LLUAX12	Frictional, high polyacrylic seal (15 to +175°C)
LB, LLB	Non-contact nitrile seal (-25 to +120 °C)
LBA, LLBA	Non-contacting polyacrylic seal (-10 to +150 °C)
LBA1, LLBA1	Non-contact sealing made of fluoroelastomer (-30 to +200 °C)
LBA2, LLBA2	Non-contact silicone seal (-100 to +200 °C)
LH, LLH	Contacting nitrile sealing low torque (-25 to +120 °C)
LHA, LLHA	Contact polyacrylic sealing low torque (-10 to +150 °C)
LHA1, LLHA1	Fluorinated contact elastomer seal with low torque (-30 to +200 °C)
LHA2, LLHA2	Contact silicone seal with low torque (-100 to +200 °C)
LHA4, LLHA4	Contact high nitrile seal with low torque (-20 to +130 °C)
LHAX12, LLHAX12	Contact high polyacrylic seal with low torque (-10 to +150 °C)
LP03	Durable standard grease (-20 to +80 °C)
LP05	Durable high temperature grease (-20 to +120 °C)
LP06	Durable food-compatible lubricating grease -10 to +100 degree (permanent 80 °C)
LP08	Durable high-temperature lubricating grease for needles (-20 to +120 °C)
LX	Seal with special seal
L1	Solid cage made of riveted brass
L3	Triple lip seal for bearing inserts
L417	Lubricating grease: Kyodo Yushi / E5 (-30 to +180 °C)
L453	Lubricating grease: Klüber / Asonic HQ72-102 (-40 to +180 °C)
L627	Lubricating grease: Exxon / Polyrex EM / Polyree (-25 to +170 °C)
M	solid cage, axially aligned with the rolling elements
-N	Outer ring + rollers (+ cage) for cylindrical roller bearings
#N	Inner ring only for cylindrical roller bearings
N	Groove for lock ring on the outer ring
N	Steel bearing e.g. P315N
N1	Cast iron bearings GS. E.g. P315N1
NR	Groove and lock ring on the outer ring
NRS	Groove and lock ring on the opposite side (contrast to the standard)
N2	Retaining groove
PM	Special precision bearings for electric motors
P42	Precision grade JIS 4 for the dimensions and JIS 2 for runout
P63E	Precision P6 and air C3 / DIN standard electric motors
P6	Precision class JIS 6
P5	Precision class JIS 5
P4	Precision class JIS 4 / BAS 4 for tapered rollers
PK	Precision class K for tapered rollers, series J
PXn	Special precision with development index
QD	Filling with grease: from 5.0 to 10.0%
QE	Filling with grease: from 7.5 to 12.5%
QF	Filling with grease: from 10.0 to 15.0%
QG	Filling with grease: from 12.5 to 17.5%
QH	Filling with grease: from 15.0 to 20.0%
QJ	Filling with grease: from 17.5 to 22.5%
QK	Filling with grease: from 20.0 to 25.0%
QL	Filling with grease: from 22.5 to 27.5%
QM	Filling with grease: from 25.0 to 30.0%
QP	Filling with grease: from 27.5 to 32.5%
QQ	Filling with grease: from 30.0 to 40.0%
QR	Filling with grease: from 35.0 to 45.0%
QS	Filling with grease: from 40.0 to 50.0%
QT	Filling with grease: over 50%
S	Round outer diameter
Snn	Special control (S20: Railroad / S30: wind energy)
ST	Changed interior design (low torque)
STVn	Changed interior design (n = 1, 2, 3 ...) (low torque)
SV	V-ring seal complete for SNC bearings
TA	Taconite seal for SNC bearings
TKBAnnnn	Special cross brace. Nnnn: order number
TKZnnnn	Special cross brace. Nnnn: order number
TKBNnnnn	Special cross brace. Nnnn: order number
T1	Cage made of fabric with Bakelite coating
T2	Cage made from plastic, nylon, or Teflon
T2X	Special polyamide cage for tight ball bearings
T2X	Polyamide cage 4.6 for cylindrical roller bearings
T6	Cage peek for NN camp
T04	Bearing inserts for operating temperature up to - 40 °C
T20	Bearing inserts for operating temperature up to + 200 °C
U	Reinforced version for tapered roller bearings
UA	Spherical roller bearings with high load capacity for vibration gear applications
UP	Ultra-high precision
V	Interior design for spherical roller bearings
V	Cylindrical roller bearings without cage
Vn	Special stock: summarizes other suffixes (n = 1, 2, 3 ...)
VS1, VS2	Special tolerance for screen bearings
W3	Bearing with clamping screw type nozzle needle
W5	Bearing with clamping screw type nozzle needle, different from W3
W6	Bearing with clamping screw type nozzle needle, different from W5
W33	Groove and lubrication holes in outer ring
Xn	Special bevel n: 1.2 ...
Y	Sheet brass cage for ball bearings with a small cross-section
Z	Flange bearing with rubber seal type Z
Z	Protective cover on one side
Z2	Flange bearing with felt strip seal
ZZ	Two-sided protective cover
ZA, ZZA	Removable protective cover
Z1, ZZ1	Stainless steel protective cover
2AS	Grease: Shell / Alvania Grease S2 (-25 to +120 °C)
3AS	Grease: Shell / Alvania Grease S3 (-25 to +135 °C)
-3, -2, -0	Precisions in accordance with the standards AFBMA for conical rollers in size inches
5C	Lubricating grease: Chevron / SRI-2 (-29 to +177 °C)
5K	Lubricating grease: Kyodo Yushi / Multemp SRL (-40 to +150 °C)
5S	Lubricating grease: Shell / Aero Shell Grease 7 (-73 to +149 °C)
6K	Lubricating grease: Klüber / Isoflex Super LDS 18 (-60 to +130 °C)

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