Manufactured by CHG Bearing, the MR74 is a precision Metric Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 4 mm bore diameter, a 7 mm outer diameter, and a 2 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.
MR74 - Metric Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | MR74 |
| Dimensions | |
| Bore Diameter (d) | 4 mm |
| Width (B) | 2 mm |
| Outer Diameter (D) | 7 mm |
| Open Width B | 2 mm |
| Radius rs min | 0.1 mm |
| Flange Df | 8.2 mm |
| Open Flange Width Bf | 0.6 mm |
| Performance | |
| Dynamic Load Cr (N) | 311 N |
| Static Load C0r (N) | 115 N |
| Grease Speed (x1000 rpm) | 60 x1000 rpm |
| Oil Speed (x1000 rpm) | 67 x1000 rpm |
| Design Configurations | |
| Open Model | MR74 |
| Flanged Open Model | MF74 |
| Shielded Model | MR74ZZ |
| Flanged Shielded Model | MF74ZZ |
| 2RS | - |
| 2RU | - |
| TTS | - |
| Internal Design & Weight | |
| Cage Type | W |
| Ball Qty. Z | 8 |
| Ball Size Dw | 1 mm |
| Open Weight (g) | 0.23 g |
| Flanged Open Weight (g) | 0.3 g |
MR74 7 mm 4 mm 2 mm Frequently Asked Questions about MR74 Metric Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs MR74 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.
Sourcing MR74 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.
Yes, 100% of MR74 Metric Miniature Deep Groove Ball Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
Absolutely. The CHG Bearing MR74 Metric Miniature Deep Groove Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF MR74, FAG MR74, NSK MR74. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
