Suffix U:

U

Reinforced version for tapered roller bearings

UA

Spherical roller bearings with high load capacity for vibration gear applications

UP

Ultra high precision 

Suffix V:

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

Suffix W:

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

Suffix X:

Xn

Special bevel n: 1.2 ...

Suffix Y:

Y

Sheet brass cage for ball bearings with a small cross-section

Suffix Z:

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