61905-2RS-12-C3 Hybrid
61905-2RS-12 C3 Hybrid Ceramic OTK / Tony Kart Wheel Bearing
- Size
- 25 × 42 × 12 mm
- Fits
- OTK / Tony Kart wheel hubs sized for 25 × 42 × 12 mm
6905-12 OTK / Tony Kart Wheel Bearing 25×42×12 mm
Part No.6905-12
The 6905-12 is a 12 mm-wide version of the 6905 wheel bearing and the original fitment in many OTK / Tony Kart wheel hubs — also found on Kosmic, EOS, Exprit, Redspeed, Gillard and similar chassis. OTT manufactures it to OEM specification for fit, durability and low rolling resistance: carbon-nitrided bearing-steel races and balls, plus low-contact rubber seals that keep lubricant in and dirt out while letting the wheel roll freely. A hybrid ceramic version with Japanese-made Si₃N₄ balls is available for lower friction and heat. For hubs that take the standard 9 mm-wide bearing, use the 6905.
- Bore (d)
- 25 mm
- Outer dia. (D)
- 42 mm
- Width
- 12 mm
- MOQ
- 10 pcs
- Lead time
- 30-45 days for standard orders
- Shipping
- FOB Ningbo / Shanghai
Technical data
Specifications
| Model | 6905-12 |
|---|---|
| Inner Diameter | 25 mm |
| Outer Diameter | 42 mm |
| Width | 12 mm |
| Seal Type | Low-contact rubber seals |
| Heat Treatment | Carbon-nitrided races and balls |
| Versions | All-steel (OEM) / Hybrid ceramic (Si₃N₄ balls) |
Applications
- OTK / Tony Kart wheel hubs
- Kosmic, EOS, Exprit, Redspeed, Gillard chassis
- OEM replacement
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
- 01OEM wheel bearing for OTK / Tony Kart hubs
- 0212 mm width — not interchangeable with 9 mm 6905
- 03Low-contact seals for free rolling
- 04Hybrid ceramic version available
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
6905-12 / 61905-2RS-12 OTK / Tony Kart wheel bearing (25 × 42 × 12 mm) — all versions
12 mm wide — not interchangeable with the 9 mm 6905. Steel OEM version or hybrid ceramic. Not sure which one fits? See where each bearing goes in a kart.
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Application Guides
Request for quotation
Need 6905-12 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