SB210-50 Kart Axle Bearing 50×90×20 mm — C4 ZZ
OTT SB210-50 is the 50 mm kart axle bearing for chassis that use a larger 90 mm bearing carrier. It shares the construction of the 50×80 mm SB208-50: carbon-nitrided bearing-steel races and balls, C4 internal clearance to cope with heat, axle flex and side load, kart-specific grease, set-screw locking and non-contact ZZ metal shields for low drag in clean, dry conditions.
- Bore (d)
- 50 mm
- Outer dia. (D)
- 90 mm
- Width
- 20 mm
- MOQ
- 10 pcs
- Lead time
- 30-45 days for standard orders
- Shipping
- FOB Ningbo / Shanghai
Technical data
Specifications
| Model | SB210-50 ZZ C4 |
|---|---|
| Inner Diameter | 50 mm |
| Outer Diameter | 90 mm |
| Width | 20 mm |
| Internal Clearance | C4 |
| Heat Treatment | Carbon-nitrided races and balls |
| Shields | Non-contact ZZ metal shields |
| Locking | Set screws |
Applications
- Kart rear axle carriers with 90 mm housing
- 50 mm kart axles
- Clean, dry track conditions
Fitment note: cross-references and vehicle applications are for identification. Send us the OE number, VIN or a sample and we will confirm the exact fitment before you order.
Key Features
- 01C4 clearance for karting loads
- 02Carbon-nitrided steel races and balls
- 03Low-drag ZZ shields
- 04Set-screw axle locking
Packaging
Available in OTT branded packaging or custom OEM packaging. Individual bearings are sealed in PE bags, packed in branded carton boxes, then palletized in wooden crates for export shipping.
Same product line
Related Go-Kart Bearings
Product lines
Explore other bearing types
Wheel BearingsPre-sealed, pre-lubricated wheel bearings — Ball Type and Tapered Roller Type for passenger cars and light trucks.34 models
Wheel Bearing Repair KitsComplete repair kits — bearings, seals, snap rings, and hardware in one package.4 models- Wheel Hub UnitsPre-assembled Gen 2 & Gen 3 hub units — bolt-on installation, sealed for life, ABS-ready.5 models
Alternator BearingsHigh-speed, low-noise bearings for automotive alternators and starter motors.18 models
Application Guides
Request for quotation
Need SB210-50 ZZ C4 in volume, or a variant of it?
Share an OE or competitor number, a drawing or target dimensions and your annual volume. Samples available for qualified projects.
- MOQ
- 10 pcs / model
- Lead time
- 30-45 days for standard orders
- Shipping
- FOB Ningbo / Shanghai