6206 Main Crankcase Bearing 30×62×16 mm
OTT 6206 is a single-row deep groove ball bearing used as the main crankshaft (crankcase) bearing in popular kart engines, including ROK GP, IAME X30 and Rotax Max. It is an all-steel design: balls, inner ring and outer ring are made from 100Cr6 high-carbon chromium bearing steel (GCr15 equivalent), chosen for hardness, wear resistance and dependable running at high rpm. Kart engine builders fit it as a direct replacement when rebuilding an engine or renewing a worn main bearing. Always confirm the bearing specification your engine manufacturer calls for before ordering.
- Bore (d)
- 30 mm
- Outer dia. (D)
- 62 mm
- Width
- 16 mm
- MOQ
- 10 pcs
- Lead time
- 30-45 days for standard orders
- Shipping
- FOB Ningbo / Shanghai
Technical data
Specifications
| Model | 6206 |
|---|---|
| Type | Single-row deep groove ball bearing, all steel |
| Inner Diameter | 30 mm |
| Outer Diameter | 62 mm |
| Width | 16 mm |
| Material | 100Cr6 / GCr15 high-carbon chromium steel (balls and rings) |
| Engine Fitment | ROK GP / IAME X30 / Rotax Max |
Applications
- Kart engine main crankcase
- ROK GP engines
- IAME X30 engines
- Rotax Max engines
- Engine rebuilds
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
- 01Correct 30×62×16 mm main-bearing size for leading kart engines
- 02100Cr6 high-carbon chromium steel balls and rings
- 03Built for high-rpm crankshaft support
- 04Direct replacement during engine rebuilds
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.






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Application Guides
Request for quotation
Need 6206 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





