Koyo 6004 Deep Groove Ball Bearings for Electric Motor

Product Specifications

Application Suitability

Need Reliable 6004 Deep Groove Ball Bearings for Electric Motors? Avoid These Common Issues

Electric motor operators often face unexpected downtime due to bearing failures—whether from incorrect seals causing lubricant leakage, imprecise dimensions leading to shaft misalignment, or low-quality materials wearing prematurely. Sourcing the right bearing model across multiple brands can also become a time-consuming process, with limited suppliers offering full range coverage.

Engineered for Consistent Performance in Electric Motor Applications

This Koyo 6004 deep groove ball bearing addresses these challenges with interchangeable dimensions following international standards, ensuring compatibility with most electric motor designs. Our ISO 9001-certified supply chain includes comprehensive testing for precision (P0 to P4 ratings) and vibration levels (Z1V1 to Z3V3), while multiple seals options (Zz, 2RS, Open) accommodate varying moisture and contamination conditions. With现货库存 available, we eliminate long lead times for critical motor repairs.

Optimal Performance in Electric Motor Operating Conditions

Designed to handle radial loads up to industry-standard limits for 20x42x12mm bearings, this deep groove ball bearing excels in electric motors with rotational speeds up to 15,000 RPM (depending on lubrication and seals). Its 12mm width provides stable support for motor shafts under continuous operation, while grease or oil lubrication flexibility allows adaptation to both high-temperature and low-maintenance environments—common requirements in industrial motor applications.

Key Engineering Features That Impact Motor Reliability

The precision rating directly affects motor efficiency: P5/P4 grades minimize rotational runout, reducing energy loss and noise in high-speed applications. Vibration class Z2V2 or Z3V3 is critical for sensitive equipment, as excessive vibration can shorten motor lifespan and cause adjacent component wear. Seal selection matters too—2RS seals offer superior protection against dust and moisture in outdoor motors, while Open designs suit oil-lubricated systems where frequent maintenance is feasible. The 20mm bore diameter ensures tight shaft fit, preventing slippage that leads to premature bearing failure.

Why Bearing Quality Affects Total Motor Ownership Cost

Choosing a low-precision bearing may save initial costs, but the hidden expenses add up: early failure can cause motor overheating, stator damage, and unplanned production stops. A P6-rated 6004 bearing with Z2V2 vibration control reduces these risks by maintaining consistent performance over 10,000+ operating hours (calculated per ISO 281 under standard conditions). Our supply chain’s ability to source both this Koyo model and alternatives from SKF, NSK, or NTN also streamlines procurement, eliminating the need for multiple supplier relationships and reducing administrative overhead.

Quality Assurance You Can Verify

Packaging & Shipping

• Standard packaging: Carton with pallet for bulk orders
• 现货 availability for immediate dispatch
• Flexible shipping: Express courier, air freight, or sea transport options
• Low minimum order quantity supported for small-scale repairs

Get Your 6004 Bearing Quote Today

Whether you need this Koyo 6004 model or equivalent deep groove ball bearings from other brands, provide your required seals type, precision grade, and quantity. Our technical team can also assist with cross-referencing part numbers to ensure compatibility with your electric motor. The sooner we confirm your specifications, the faster we can arrange delivery.

Frequently Asked Questions