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Start ShoppingProX Crankshaft Bearing with C3 Clearance - High-Quality Radial Ball Bearing for Engine Performance
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Description
Upgrade your engine's reliability with ProX's premium crankshaft bearing. This radial ball bearing delivers smooth operation and extended lifespan for high-performance engines, ensuring consistent power delivery and reduced wear.
Key Features
- 30mm Inner Diameter: Perfect fit for standard crankshaft applications with precise dimensional accuracy.
- 62mm Outer Diameter: Robust design for enhanced load distribution and stability under high RPM conditions.
- 16mm Width: Optimized thickness for balanced support and minimal rotational resistance.
- High-Quality Steel: Durable construction resists corrosion and deformation in demanding environments.
- C3 Clearance: Specialized tolerance for reduced friction and improved bearing longevity in high-temperature applications.
- Radial Ball Bearing: Efficient design for smooth rotational movement and even stress distribution.
Why Choose This Product
ProX crankshaft bearings combine precision engineering with heavy-duty materials to deliver exceptional performance. The C3 clearance specification ensures optimal operation in high-stress environments, while the steel construction provides long-term durability. This bearing is ideal for riders seeking reliable engine performance without compromising on quality or efficiency.
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Upgrade your engine's reliability with ProX's premium crankshaft bearing. This radial ball bearing delivers smooth operation and extended lifespan for high-performance engines, ensuring consistent power delivery and reduced wear.
Key Features
- 30mm Inner Diameter: Perfect fit for standard crankshaft applications with precise dimensional accuracy.
- 62mm Outer Diameter: Robust design for enhanced load distribution and stability under high RPM conditions.
- 16mm Width: Optimized thickness for balanced support and minimal rotational resistance.
- High-Quality Steel: Durable construction resists corrosion and deformation in demanding environments.
- C3 Clearance: Specialized tolerance for reduced friction and improved bearing longevity in high-temperature applications.
- Radial Ball Bearing: Efficient design for smooth rotational movement and even stress distribution.
Why Choose This Product
ProX crankshaft bearings combine precision engineering with heavy-duty materials to deliver exceptional performance. The C3 clearance specification ensures optimal operation in high-stress environments, while the steel construction provides long-term durability. This bearing is ideal for riders seeking reliable engine performance without compromising on quality or efficiency.| SKU | GMF705B4D8 |
|---|---|
| MPN | 23.6305C3 |
| Brand | ProX |
| Category | Engine |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Kawasaki | KX250F | 2004-2009 |
| Kawasaki | KX450F | 2006-2009 |
| Suzuki | RMZ250 | 2004-2008 |
| Suzuki | RMZ450 | 2005-2008 |
Frequently Asked Questions
This is the RIGHT side crankshaft bearing (transmission side) with C3 clearance.
Yes, confirmed fitment for 2004-2009 Kawasaki KX250F models.
Yes, crankshaft bearings require complete engine disassembly.
C3 has greater internal clearance, better for high RPM engines and high-performance applications.
No, always replace both crank bearings during rebuild for proper crankshaft support.
Installation Guide
Difficulty
Hard
Est. Time
2 hr 0 min
Tools Required
- Crankshaft bearing puller/installer
- Engine stand
- Torque wrench
- Socket set
- Case splitter
- Heat gun or oven (for installation)
Pro Tips
- Heat crankcase to 250°F (120°C) before bearing installation
- Use bearing installer tool - never hammer directly on bearing
- Apply assembly lube to bearing after installation
- Check crankshaft runout after installation (<0.02mm)
Common Mistakes to Avoid
- Installing bearing without proper heating of case (causes binding)
- Not using bearing installer (damages bearing race)
- Incorrect orientation of bearing
- Not cleaning case thoroughly before install
Comparison vs Stock/OEM
ProX aftermarket bearing matches OEM specifications with C3 clearance for high-performance applications
Improvements
- C3 clearance better for high RPM operation
- Typically 20-30% less expensive than OEM
- Same material quality as OEM Japanese bearings
Considerations
- Requires proper installation technique
- No significant performance difference from OEM when properly installed
Durability & Warranty
Expected Lifespan
Same as OEM - 50-100 hours racing / 200+ hours trail use
Warranty
1 year manufacturer defect warranty
Maintenance
Replace during complete engine rebuild. Inspect during top-end service.
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