6905-2RS
6905-2RS Low-Contact Sealed Kart Wheel Bearing 25×42×9 mm
- Size
- 25 × 42 × 9 mm
- Fits
- Kart wheel hubs (25 mm)
6905ZZ Kart Wheel Bearing 25×42×9 mm
Part No.6905ZZ
The 6905 (25×42×9 mm) is the most widely used 25 mm wheel bearing size in karting. OTT builds it with carbon-nitrided bearing-steel races and balls for a hard, wear-resistant surface over a shock-tolerant core, and fills it with kart-specific grease that holds its film under braking, cornering and kerb impacts. The ZZ version uses non-contact metal shields: practically zero seal drag and protection against larger debris, best suited to clean, dry conditions. For wet or dusty tracks choose the 6905-2RS low-contact sealed version; for OTK / Tony Kart hubs that take the wider bearing, choose the 6905-12.
- Bore (d)
- 25 mm
- Outer dia. (D)
- 42 mm
- Width
- 9 mm
- MOQ
- 10 pcs
- Lead time
- 30-45 days for standard orders
- Shipping
- FOB Ningbo / Shanghai
Technical data
Specifications
| Model | 6905ZZ |
|---|---|
| Inner Diameter | 25 mm |
| Outer Diameter | 42 mm |
| Width | 9 mm |
| Shields | Non-contact ZZ metal shields |
| Heat Treatment | Carbon-nitrided races and balls |
| Lubrication | Kart-specific high-performance grease |
Applications
- Kart wheel hubs (25 mm)
- Front and rear wheels
- 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
- 01Most common 25 mm kart wheel bearing size
- 02Non-contact ZZ shields — minimal drag
- 03Carbon-nitrided steel for long fatigue life
- 04OEM-quality fit
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
6905 / 61905 kart wheel bearing (25 × 42 × 9 mm) — all versions
ZZ shields for clean, dry tracks, 2RS low-contact seals for wet or dusty tracks, hybrid ceramic for racing. Not sure which one fits? See where each bearing goes in a kart.
61905-2RS-C3 Hybrid
61905-2RS C3 Hybrid Ceramic Kart Wheel Bearing
- Size
- 25 × 42 × 9 mm
- Fits
- 25 mm kart wheel hub
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Application Guides
Request for quotation
Need 6905ZZ 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