ball and roller bearings - NTN Bearing Corporation of

1. SERIES & SIZE
51, 53*: Single direction thrust ball bearing
52, 54*: Double direction thrust ball bearing
56: Angular contact thrust ball bearing
29: Spherical thrust roller bearing
29: Single direction thrust ball bearing
9: Single direction thrust ball bearing
* Self-aligning outside diameter
2. CAGE
No Symbol: Standard cage
J: Pressed steel cage
L1: Machined brass cage
T2: Plastic cage, nylon or teflon
BALL AND
ROLLER
THRUST
BEARING
NUMBERING
SYSTEM
127