635
600 Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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635 Bearing Product Overview & Core Advantages
The 635 bearing is a metric single row deep groove ball bearing designed for exceptional performance in radial load applications. Engineered with precision ABEC1 tolerance and manufactured from high-grade chrome steel, this bearing delivers reliable operation and extended service life. Its compact design, with a 5mm bore and 19mm outside diameter, makes it ideal for space-constrained applications requiring high rotational accuracy and smooth operation. The bearing requires lubrication and operates effectively within a temperature range of -30°C to 110°C.
635 Bearing Model Code Explained, Specifications & Naming Convention
| Component | Specification | Technical Significance |
|---|---|---|
| 635 | Basic Model | Standard deep groove ball bearing with 5mm bore, 19mm OD, 6mm width |
| Open | Seal Type | No seals or shields, allowing for higher speed capability and custom lubrication options |
| ABEC1 | Tolerance Class | Standard precision grade suitable for most industrial applications |
| MC3 | Radial Clearance | Normal radial internal clearance group (0.002-0.013mm) for general operating conditions |
635 Bearing Structural Features & Performance Benefits
Optimized Deep Groove Design: The single row deep groove raceway geometry enables excellent radial load capacity while accommodating moderate axial loads in both directions. This makes the 635 bearing highly versatile for various applications.
Premium Material Construction: Manufactured from chrome steel rings and balls with a stainless steel cage, this bearing offers superior corrosion resistance and mechanical strength. The material combination ensures reliable performance under demanding conditions.
High-Speed Capability: With a limiting speed of 32,000 rpm and precision ABEC1 tolerances, this bearing maintains stable operation at high rotational speeds. The open design facilitates optimal lubrication distribution for enhanced high-speed performance.
Precision Engineering: Tight dimensional tolerances on bore diameter, outside diameter, and width ensure consistent performance and easy installation. The controlled radial internal clearance provides optimal running characteristics for various operating conditions.
635 Bearing Typical Application Areas
The 635 bearing finds extensive use across multiple industries due to its reliable performance and compact bearing dimensions:
- Small Electric Motors: Ideal for miniature DC motors, stepper motors, and fan motors requiring high-speed operation
- Precision Instruments: Suitable for measuring devices, optical equipment, and laboratory instruments demanding accurate rotation
- Office Automation Equipment: Used in printers, scanners, copiers, and other precision office machinery
- Medical Devices: Applications in small medical instruments, dental equipment, and diagnostic devices
- Robotics and Automation: Precision joints, small actuators, and positioning mechanisms in robotic systems
- Consumer Electronics: Computer cooling fans, small appliances, and portable electronic devices
