Manufactured by CHG Bearing, the 624 is a precision Metric Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 4 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.
624 - Metric Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 624 |
| Dimensions | |
| Bore Diameter (d) | 4 mm |
| Width (B) | 5 mm |
| Outer Diameter (D) | 13 mm |
| Open Width B | 5 mm |
| Radius rs min | 0.2 mm |
| Flange Df | 15 mm |
| Closed Width B1 | 5 mm |
| Open Flange Width Bf | 1 mm |
| Closed Flange Width Bf1 | 1 mm |
| Performance | |
| Dynamic Load Cr (N) | 1301 N |
| Static Load C0r (N) | 488 N |
| Grease Speed (x1000 rpm) | 40 x1000 rpm |
| Oil Speed (x1000 rpm) | 48 x1000 rpm |
| Design Configurations | |
| Open Model | 624 |
| Flanged Open Model | F624 |
| Shielded Model | 624ZZ |
| Flanged Shielded Model | F624ZZ |
| 2RS | 2RS |
| 2RU | 2RU |
| TTS | - |
| Internal Design & Weight | |
| Cage Type | J |
| Ball Qty. Z | 7 |
| Ball Size Dw | 2.381 mm |
| Shielded Weight (g) | 3.2 g |
| Flanged Shielded Weight (g) | 3.54 g |
| Open Weight (g) | 3.1 g |
| Flanged Open Weight (g) | 3.44 g |
624 13 mm 4 mm 5 mm Frequently Asked Questions about 624 Metric Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 624 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (4 mm x 13 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The Open Type engineered for 624 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 624, 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 624 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.
