Manufactured by CHG Bearing, the R133 (shielded) is a precision Inch Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 2.38 mm bore diameter, a 4.762 mm outer diameter, and a 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.
R133 (shielded) - Inch Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | R133 (shielded) |
| Dimensions | |
| Bore Diameter (d) | 2.38 mm |
| Outer Diameter (D) | 4.762 mm |
| Radius rs min | 0.1 mm |
| Flange Df | 5.944 mm |
| Closed Width B1 | 2.38 mm |
| Closed Flange Width Bf1 | 0.787 mm |
| Performance | |
| Dynamic Load Cr (N) | 144 N |
| Static Load C0r (N) | 53 N |
| Grease Speed (x1000 rpm) | 80 x1000 rpm |
| Oil Speed (x1000 rpm) | 95 x1000 rpm |
| Design Configurations | |
| Open Model | - |
| Flanged Open Model | - |
| Shielded Model | R133ZZS* |
| Flanged Shielded Model | FR133ZZS* |
| 2RS | - |
| 2RU | - |
| TTS | - |
| Internal Design & Weight | |
| Cage Type | W |
| Ball Qty. Z | 10 |
| Ball Size Dw | 0.6 mm |
| Shielded Weight (g) | 0.15 g |
| Flanged Shielded Weight (g) | 0.21 g |
R133 (shielded) 4.762 mm 2.38 mm mm Frequently Asked Questions about R133 (shielded) Inch Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects R133 (shielded) to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Engineered according to international ISO boundary plans, CHG Bearing supplies R133 (shielded) with a precision bore diameter (d) of 2.38 mm, an outside diameter (D) of 4.762 mm, and a nominal ring width (B) of mm. This configuration yields an effective cross-sectional wall thickness of 0 mm and an envelope ratio (D/d) of 0, delivering compact rigidity for OEM machinery housings.
Quality starts with raw material selection: CHG Bearing crafts R133 (shielded) inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Beyond standard alloy steel, CHG Bearing can customize the R133 (shielded) Inch 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.
