Product Overview: 629 RS Deep Groove Ball Bearing
Key Features at a Glance:
- Effective Rubber Sealing: Contact rubber seals on both sides provide superior protection against contaminants and moisture ingress, while effectively retaining lubricant for extended service intervals.
- Robust Design: The light series construction offers dependable radial load-carrying capacity within a compact design envelope.
- Smooth Operation: Engineered for quiet and stable performance across a wide range of operating speeds.
- Precision Option: Available in standard tolerances and capable of being supplied to higher P5 precision grades for demanding applications.
Technical Specifications
| Parameter |
Specification |
| Bearing Type |
Single Row Deep Groove Ball Bearing |
| ISO Dimension Series |
62 Series – Light |
| Basic Designation |
629 |
| Suffix |
2RS (Both sides with rubber contact seals) |
| Bore Diameter (d) |
9 mm |
| Outer Diameter (D) |
26 mm |
| Width (B) |
8 mm |
| Dynamic Load Rating (Cʳ) |
5.85 kN |
| Static Load Rating (Cₒʳ) |
2.75 kN |
| Limiting Speed (Grease) |
22,000 r/min |
| Limiting Speed (Oil) |
30,000 r/min |
| Weight (approx.) |
23.5 g |
Detailed Product Information
Design & Protection
The 629RS features the standard deep groove geometry, suitable for significant radial and moderate axial loads. Its defining characteristic is the inclusion of synthetic rubber (NBR) contact seals on both sides. These seals provide a higher degree of protection against fine dust, dirt, and splashing water compared to steel shields, making it ideal for harsh or dirty environments. The seals are in light contact with the inner ring, offering excellent contaminant exclusion and grease retention for maintenance-free operation over long periods.
Performance Characteristics
This bearing is designed for durability and reliability in challenging conditions. While the contact seals introduce slightly more friction than open or shielded designs, modern seal technology ensures efficient operation. We produce the 629RS to standard industrial tolerances, with the capability to provide P5 precision grades for applications where exceptional running accuracy is required alongside environmental protection.
Applications
The sealed design of the 629RS makes it particularly suitable for applications where contamination or lubricant loss is a concern, such as:
- Electric Motors: Enclosed fan motors, pump motors, and appliances operating in dusty or humid conditions.
- Power Tools: Drills, angle grinders, and saws exposed to workshop debris.
- Automotive Components: Window regulators, wiper motors, and small actuators.
- Agricultural & Garden Equipment: Small machinery parts exposed to outdoor elements.
- Food & Beverage Industry: Equipment in washdown areas where light moisture protection is needed (subject to specific material suitability).
