Manufactured by CHG Bearing, the R168* is a precision Inch Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 6.35 mm bore diameter, a 9.525 mm outer diameter, and a 3.175 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.
R168* - Inch Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | R168* |
| Dimensions | |
| Bore Diameter (d) | 6.35 mm |
| Width (B) | 3.175 mm |
| Outer Diameter (D) | 9.525 mm |
| Open Width B | 3.175 mm |
| Radius rs min | 0.1 mm |
| Flange Df | 10.719 mm |
| Closed Width B1 | 3.175 mm |
| Open Flange Width Bf | 0.584 mm |
| Closed Flange Width Bf1 | 0.914 mm |
| Performance | |
| Dynamic Load Cr (N) | 373 N |
| Static Load C0r (N) | 172 N |
| Grease Speed (x1000 rpm) | 48 x1000 rpm |
| Oil Speed (x1000 rpm) | 56 x1000 rpm |
| Design Configurations | |
| Open Model | R168* |
| Flanged Open Model | FR168* |
| Shielded Model | R168ZZS* |
| Flanged Shielded Model | FR168ZZS* |
| 2RS | - |
| 2RU | - |
| TTS | TTS |
| Internal Design & Weight | |
| Cage Type | W |
| Ball Qty. Z | 11 |
| Ball Size Dw | 1 mm |
| Shielded Weight (g) | 0.6 g |
| Flanged Shielded Weight (g) | 0.73 g |
| Open Weight (g) | 0.57 g |
| Flanged Open Weight (g) | 0.66 g |
R168* 9.525 mm 6.35 mm 3.175 mm Frequently Asked Questions about R168* Inch Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for R168*, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
When fitting R168* over a 6.35 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
The Open Type engineered for R168* 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.
The CHG Bearing R168* is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
