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.
Other versions
Kart rear axle insert bearings — by axle size and version
Choose by axle diameter (30 / 40 / 50 mm) and carrier size, then by closure (ZZ or 2RS) and steel or hybrid ceramic. All with C4 clearance and set-screw locking. Not sure which one fits? See where each bearing goes in a kart.
SB208-50
SB208-50 Kart Axle Bearing 50×80 mm — C4 Steel
- Size
- 50 × 80 × 18 mm
- Fits
- Kart rear axle carriers (50 mm axle)
SB208-50 Hybrid Ceramic
SB208-50 Hybrid Ceramic Kart Axle Bearing 50×80 mm
- Size
- 50 × 80 mm
- Fits
- Competition rear axles
SB208-210-2RS-C4 Hybrid
SB208-50 2RS C4 Hybrid Ceramic Kart Axle Bearing
- Size
- 50 × 80 × 18 mm
- Fits
- 50 mm kart axle
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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