608-2RSH/C3 Miniature Deep Groove Ball Bearing 8x22x7mm Double Contact Rubber Seal C3 Clearance High Speed Bearing

1. Product Overview

608-2RSH/C3 is single row miniature deep groove ball bearing with full specification 8×22×7mm. 2RSH stands for double-sided contact rubber seals to block fine dust, sand and moisture; C3 represents enlarged radial internal clearance, suitable for high-speed operation and thermal expansion conditions. Deep raceway structure bears radial load and slight bidirectional axial load, features low friction, low noise and stable high-speed rotation. Widely applied to skateboards, 3D printer sliding axes, miniature DC motors, small fans, power tools and precision miniature automation equipment.

2. Technical Specifications

Model: 608-2RSH/C3
d:8mm, D:22mm, B:7mm
Min fillet r:0.3mm
Dynamic load Cr:3.45kN, Static load C0r:1.37kN
Grease limiting speed:22000r/min
Net weight:0.012kg
Structure: Single row deep groove, double-sided 2RSH contact seal
Cage: Stamped steel cage
Material: GCr15 vacuum smelting bearing steel, hardness HRC60-65
Clearance: C3 loose clearance
Precision: P0 standard, P6 optional
Operating temperature: -30℃ ~ 110℃
Dimension drawings and durability test reports available on request.

3. Core Advantages

• 2RSH contact lip seal, excellent dustproof and waterproof performance for dusty workshop and outdoor equipment
• C3 enlarged clearance eliminates jamming caused by thermal expansion during continuous high-speed running
• Ultra-small 8mm bore compact size, perfect matching miniature shafts and compact equipment layout
• Smooth deep raceway design reduces friction heat, supports stable long-time high-speed rotation
• Light stamped steel cage keeps uniform ball spacing, low vibration and quiet operation
• Standard ISO interchangeable dimension, compatible with universal skateboard and micro motor assemblies
• Custom pre-filled high-speed grease, stainless steel anti-rust version and batch laser marking available

4. Application Scenarios

• Sports equipment: Skateboards, roller skates, scooter wheel hubs
• Precision automation: 3D printer linear sliding shafts, miniature testing instruments
• Micro power equipment: Small cooling fans, miniature DC motors, handheld power tools
• Custom small machinery: Mini gear reducers, toy drive modules, dental small rotary parts

Fit OEM assembly and aftermarket replacement of miniature high-speed light-load rotating equipment.

5. Why Choose GQZ Bearing

25 years professional production of 600 series miniature deep groove ball bearings. Vacuum smelting high-purity GCr15 steel with stable quenching and tempering heat treatment. Full OEM & ODM customization for seal type, clearance grade and special lubricant. Strict full-process inspection includes raw material hardness test, ultra-precision raceway grinding, G10 grade steel ball screening and noise aging test. 24-hour professional technical support for miniature shaft tolerance matching and lubrication maintenance plans. Factory direct bulk price, abundant miniature bearing spot stock for global consumer goods and automation buyers.

6. Quality Control

1. Raw material chemical composition and hardness inspection
2. Integral quenching and stress relief tempering to eliminate internal residual stress
3. CNC ultra-precision inner and outer ring raceway mirror grinding
4. High-precision steel ball sorting and thin steel cage stamping forming
5. Dust-free assembly with multiple types of high-speed grease filling options
6. Low-noise aging and continuous high-speed wear resistance cycle testing
7. Full dimension inspection, anti-rust oil coating, neutral small carton export packaging

Each batch completes rotation smoothness and noise test to guarantee stable high-speed operation in various miniature equipment.

7. Get A Quote

Send inquiries for 608-2RSH/C3 miniature bearings used on skateboards, 3D printers and small micro motors.
Services after inquiry:

1. Standard quotation delivered within 24 working hours
2. Technical guidance for miniature shaft fit tolerance and regular lubrication cycles
3. Upgrade options: P6 high precision grade, stainless steel corrosion resistant model, high-temperature synthetic grease
4. Competitive factory bulk unit price for large quantity orders

Please state order quantity, rotating speed and working environment for complete quotation documents.

8. FAQ