Manufactured by CHG Bearing, the MR85 (shielded) is a precision Metric Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 5 mm bore diameter, a 8 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.
MR85 (shielded) - Metric Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | MR85 (shielded) |
| Dimensions | |
| Bore Diameter (d) | 5 mm |
| Outer Diameter (D) | 8 mm |
| Radius rs min | 0.1 mm |
| Flange Df | 9.2 mm |
| Closed Width B1 | 2.5 mm |
| Closed Flange Width Bf1 | 0.6 mm |
| Performance | |
| Dynamic Load Cr (N) | 218 N |
| Static Load C0r (N) | 90 N |
| Grease Speed (x1000 rpm) | 53 x1000 rpm |
| Oil Speed (x1000 rpm) | 63 x1000 rpm |
| Design Configurations | |
| Open Model | - |
| Flanged Open Model | - |
| Shielded Model | MR85ZZ |
| Flanged Shielded Model | MF85ZZ |
| 2RS | - |
| 2RU | - |
| TTS | TTS |
| Internal Design & Weight | |
| Cage Type | W |
| Ball Qty. Z | 9 |
| Ball Size Dw | 0.8 mm |
| Shielded Weight (g) | 0.34 g |
| Flanged Shielded Weight (g) | 0.42 g |
MR85 (shielded) 8 mm 5 mm mm Frequently Asked Questions about MR85 (shielded) Metric Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every production batch of CHG Bearing MR85 (shielded) Metric Miniature Deep Groove Ball Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
Sourcing MR85 (shielded) directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Metric Miniature Deep Groove Ball Bearings.
Engineered according to international ISO boundary plans, CHG Bearing supplies MR85 (shielded) with a precision bore diameter (d) of 5 mm, an outside diameter (D) of 8 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.
Beyond standard alloy steel, CHG Bearing can customize the MR85 (shielded) 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.
