ALL BALLS Swing Arm Bearing Kit for YAMAHA IT 400, TT 500, XT 500, YZ 250, YZ 400 COMPETITION 1975-1982

ALL BALLS offers this swingarm bearing kit for YAMAHA IT 400, TT 500, XT 500, YZ 250, YZ 400 COMPETITION 1975-1982. The swingarm pivots on needle bearings protected by seals. Water and mud make them seize: the suspension gets stiff and play appears.

What is this bearing made of?

Races and balls in hardened chrome steel, 100Cr6 type, very hard and fatigue-resistant, protected by rubber seals.

• Double seal (2RS): a seal on each side, very well sealed against water and mud, essential off-road.
• Limit: slightly more drag than a metal-shielded bearing (ZZ), which spins more freely but seals far less well.
• Fitting: press or drift it in on the outer race, never hammer on the seal; keep the pressure washer away from the hubs.

Why choose ALL BALLS?

Complete All Balls kits: low-friction bearings and steel-spring nitrile seals, everything you need in one box.

When should you replace this part?

Side play when you rock the swingarm with the rear wheel removed, or a notchy movement: the bearings need changing.

Specifications and fitting tips

• Heat treated ARC61-65 needle bearings
• Plated bushing for wear and corrosion protection
• Manufacturer part number: 28-1176

Cross-Mania tip: Press out the old bearings, grease the new ones and check the swingarm pivot: if it is marked, replace it too.

Also needed with this part

• Grease : SHOWA 500 g · KYB

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
YAMAHA IT 400 1976
YAMAHA TT 500 1981
YAMAHA TT 500 1980
YAMAHA TT 500 1979
YAMAHA TT 500 1978
YAMAHA TT 500 1977
YAMAHA TT 500 1976
YAMAHA XT 500 1982
YAMAHA XT 500 1981
YAMAHA XT 500 1980
YAMAHA XT 500 1979
YAMAHA XT 500 1978
YAMAHA XT 500 1977
YAMAHA XT 500 1976
YAMAHA YZ 250 1976
YAMAHA YZ 250 1975
YAMAHA YZ 400 COMPETITION 1976