6004‑2RSH/C3 Double Contact Rubber Sealed Bearing 20×42×12mm C3 Clearance High

1. Product Overview

The 6004‑2RSH/C3 single row miniature deep groove ball bearing adopts double-sided low-friction 2RSH contact NBR rubber seals and C3 enlarged radial clearance. The extra internal clearance compensates thermal expansion generated during long-term high-speed and high-temperature operation to avoid bearing locking failure. Double lip contact rubber seals effectively block fine dust, water mist and impurities while locking internal grease inside the bearing. Widely matched with heat-generating micro motors, small cooling fans, electric power tools, household appliances and miniature automation transmission equipment with high working temperature.

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2. Technical Specifications

Full technical data and CAD drawings available upon request

3. Key Advantages

1. C3 oversize radial clearance eliminates seizure risk caused by thermal expansion of shaft and bearing rings under high speed and high temperature working conditions
2. Double-sided 2RSH low-torque contact rubber seals deliver excellent dustproof and splash-proof performance, extend grease service cycle and reduce equipment maintenance frequency
3. Compact lightweight extra-light series structure with low rotational friction torque, stable low-noise and low-vibration continuous running performance
4. Reliable radial load bearing capacity, can withstand slight bidirectional axial loads for small precision mechanical equipment
5. Super-finished GCr15 chrome steel inner and outer rings plus steel balls provide outstanding wear resistance and long service life
6. Custom precision grades (ABEC1/ABEC3), special high-temperature lubricating grease and OEM personalized processing fully supported

Helps cut maintenance cost and improve equipment stability and operation performance

4. Applications

This miniature bearing is widely used in:

• High-temperature micro high-speed motors and industrial small cooling ventilation fans
• Handheld electric power tools, garden tools and heat-generating household electrical equipment
• Precision miniature automation transmission components and small textile machinery
• Office printers, small medical devices and light industrial rotating equipment with continuous heat accumulation

Ideal for customers looking for compact heat-resistant C3 clearance contact rubber sealed miniature deep groove bearing solutions

5. Why Choose GQZ Bearing

• Over 25 years professional industrial bearing manufacturing experience
• Products exported to more than 50 countries worldwide
• Mature technical capacity for OEM and customized miniature bearing bulk orders
• Strict full-process quality inspection covering raw material to finished products before delivery
• Fast professional technical support and formal quotation within 24 hours
• Stable mass production and sufficient spot stock for long-term bulk cooperative clients

We focus on quality, reliability, and long‑term partnership

6. Quality Assurance

• Raw material composition & hardness inspection
• Precision CNC turning, grinding and superfinishing process
• Uniform constant high-temperature heat treatment control
• Clearance, noise, rotational flexibility and load fatigue performance testing
• Full dimensional tolerance and appearance visual inspection before vacuum packaging

Ensuring consistent stable performance for every bearing batch

7. Get a Quote Now

Looking for a reliable supplier of miniature C3 clearance 2RSH rubber sealed deep groove bearings?
Send your inquiry to get:

• Fast factory quotation within 24 hours
• Professional engineer technical matching guidance
• Customized bearing parameter matching schemes
• Competitive factory direct bulk price

Contact us now for more product details