Bearing - 638 2RS KBS
Product detailed description
KBS 638 2RS – double-sealed deep-groove ball bearing
The KBS 638 2RS is a single-row deep-groove ball bearing intended mainly for radial loads while also carrying limited axial loads in both directions. Rubber seals on both sides help retain lubricant and protect the raceways from dust, contaminants and splashing moisture. They are not pressure seals and do not guarantee permanent liquid-tightness.
Technical data
| Designation | 638 2RS |
|---|---|
| Manufacturer | KBS |
| Bearing type | single-row deep-groove ball bearing |
| Bore diameter d | 8 mm |
| Outside diameter D | 28 mm |
| Width B | 9 mm |
| Sealing | rubber seals on both sides (2RS) |
| Radial clearance | no special clearance suffix stated in the displayed designation |
Application and mounting
This bearing suits rollers, tools, small electric motors, wheels and other compact mechanisms when load, speed and environment are appropriate. Apply mounting force only through the ring with the interference fit; never transmit it through the balls, and protect the seals from deformation and sharp edges.
Check before ordering
Compare the 8 × 28 × 9 mm dimensions and complete designation, including 2RS, with the original bearing. Open 638, single-seal RS, metal-shielded Z/2Z and C3-clearance versions are not automatically interchangeable.
Product rating
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We can arrange delivery of almost any KBS product, even if it is not currently listed in our catalogue.
Send us the designation, a photo of the nameplate, dimensions or a description of the application, and we will check availability.
KBS – product identification and supply
The KBS designation may appear on different technical products and spare parts. To identify the exact item reliably, we therefore work from the complete marking and the available technical data.
The exact item should be selected by its complete designation and technical parameters. Dimensions, design, material and operating conditions are important when matching a replacement.
For an accurate quotation, please provide the full marking, required quantity and any available documentation. We will compare the specification and verify a suitable delivery option.