Manufactured by CHG Bearing, the 633 is a precision Metric Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 3 mm bore diameter, a 13 mm outer diameter, and a 5 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
633 - Metric Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 633 |
| Dimensions | |
| Bore Diameter (d) | 3 mm |
| Width (B) | 5 mm |
| Outer Diameter (D) | 13 mm |
| Open Width B | 5 mm |
| Radius rs min | 0.2 mm |
| Closed Width B1 | 5 mm |
| Performance | |
| Dynamic Load Cr (N) | 1301 N |
| Static Load C0r (N) | 448 N |
| Grease Speed (x1000 rpm) | 40 x1000 rpm |
| Oil Speed (x1000 rpm) | 48 x1000 rpm |
| Design Configurations | |
| Open Model | 633 |
| Flanged Open Model | - |
| Shielded Model | - |
| Flanged Shielded Model | - |
| 2RS | 2RS |
| 2RU | 2RU |
| TTS | - |
| Internal Design & Weight | |
| Cage Type | J |
| Ball Qty. Z | 7 |
| Ball Size Dw | 2.381 mm |
| Shielded Weight (g) | 3.43 g |
| Open Weight (g) | 3.27 g |
633 13 mm 3 mm 5 mm Frequently Asked Questions about 633 Metric Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing 633, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 633, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Beyond standard alloy steel, CHG Bearing can customize the 633 Metric Miniature Deep Groove Ball Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
For international ocean and air freight, CHG Bearing packs 633 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
