6303-2RSH/C3 Single Row Deep Groove Ball Bearing Double 2RSH Rubber Seal C3 Clearance 17x47x14mm Small Motor Equipment

1. Product Overview
The 6303-2RSH/C3 single row deep groove ball bearing is fitted with double-sided 2RSH low-friction rubber seals and C3 enlarged radial clearance. It provides reliable dust and splash protection, compensates shaft thermal expansion during long high-temperature operation, widely used for small motors, miniature pumps, automation and light transmission machinery.
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• Double 2RSH thin-wall rubber seals reduce rotational resistance, block dust and coolant effectively
• C3 extra clearance absorbs thermal expansion gap for continuous high-temperature running equipment
• Larger ball size offers stronger radial load capacity than same series small bore bearings
• Precision superfinished raceway ensures low noise, low vibration and smooth high-speed rotation
• High-hardness quenched bearing steel improves wear resistance and extends service life
• Double 2Z metal shield and C0 standard clearance versions can be customized

This 2RSH sealed C3 clearance bearing is widely used in:

• Small drive motors, miniature fans and micro water pump rotary assemblies
• Automation conveying devices, textile and light processing machinery
• Dusty & slightly splash workshop light-load rotary supporting parts
• General compact mechanical transmission components with high rotating speed

• 25+ years experience in small size deep groove ball bearing manufacturing
• Exported to 50+ countries worldwide
• Rich OEM experience for 2RSH sealed C3 clearance bearing bulk orders
• Strict clearance grouping, seal tightness and rotation noise inspection before shipment
• Fast professional technical reply within 24 hours
• Stable bulk supply for long-term small motor factory cooperation

• Raw bearing steel incoming hardness inspection
• Ultra-precision superfinishing for raceway and steel balls
• Standard quenching & tempering heat treatment for uniform hardness
• 2RSH seal friction test, C3 clearance sorting and rotation durability testing
• Full dimensional tolerance recheck before anti-rust packaging delivery