FAG 3801 -B-2Z-TVH Angular Contact Ball Bearing - 12 mm ID, 21 mm OD, 7 mm Width, Normal Sealant whereas the TMMK 20-50 suits

whereas the TMMK 20-50 suits bearings with bore diameters from 20 to 50 mm

Also used for Mil-R-46082 military specifcation related applications

Hydraulic spindle doubles the manual pulling force by 100%

A heat-stabilized polymer locking ring grips the mating thread to develop prevailing torque

FAG 3801 -B-2Z-TVH Angular Contact Ball Bearing - 12 mm ID, 21 mm OD, 7 mm Width, Normal Sealant whereas the TMMK 20-50 suitsAngular Contact Ball Bearing sealed design and lightweight cage Angular Contact Ball Bearings have raceways in the inner and outer rings that are displaced relative to each other in the direction of the bearing axis. They are designed to accommodate combined loads. The sealed design provides protection against contamination. Manufactured to precision tolerance class for demanding applications. Features a lightweight polyamide cage for reduced noise