Manufactured by CHG Bearing, the 71801 ACDGB/P4 is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 12 mm bore diameter, a 21 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.
71801 ACDGB/P4 - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71801 ACDGB/P4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Angular Contact Ball Bearing |
| Number of Rows | 1 |
| Contact Type | Normal Contact (Two-point Contact) |
| Ring Type | Integral Inner and Outer Rings |
| Design | High-capacity D Design |
| Universally Matchable | Yes – Back-to-back (DB), Face-to-face (DF), or Tandem (DT) |
| Axial Clearance / Preload | Preload Class B |
| Tolerance Class | P4 |
| Bearing Material | Bearing Steel |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 12 mm |
| Width (B) | 5 mm |
| Outer Diameter (D) | 21 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1.95 kN |
| Basic Static Load Rating C₀ (kN) | 1.12 kN |
| Material | |
| Weight (kg) | 0.006 kg |
71801 ACDGB/P4 21 mm 12 mm 5 mm Frequently Asked Questions about 71801 ACDGB/P4 Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 71801 ACDGB/P4 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (12 mm x 21 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 71801 ACDGB/P4, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
When fitting 71801 ACDGB/P4 over a 12 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 CHG Bearing 71801 ACDGB/P4 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.
