Manufactured by CHG Bearing, the 71907/VA9D1 is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 35 mm bore diameter, a 55 mm outer diameter, and a 10 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.
71907/VA9D1 - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71907/VA9D1 |
| 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 |
| Universally Matchable | Yes – Back-to-back (DB), Face-to-face (DF), or Tandem (DT) |
| Axial Clearance / Preload | Not Applicable |
| Tolerance Class | P4 |
| Bearing Material | Bearing Steel |
| Sealing | Open |
| Features | Suitable for Driven Tools |
| Dimensions | |
| Bore Diameter (d) | 35 mm |
| Width (B) | 10 mm |
| Outer Diameter (D) | 55 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 9.23 kN |
| Basic Static Load Rating C₀ (kN) | 6.2 kN |
| Limiting Speed – Grease (r/min) | 17000 r/min |
| Material | |
| Weight (kg) | 0.076 kg |
71907/VA9D1 55 mm 35 mm 10 mm Frequently Asked Questions about 71907/VA9D1 Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 71907/VA9D1 with a precision bore diameter (d) of 35 mm, an outside diameter (D) of 55 mm, and a nominal ring width (B) of 10 mm. This configuration yields an effective cross-sectional wall thickness of 10.0 mm and an envelope ratio (D/d) of 1.57, delivering compact rigidity for OEM machinery housings.
In its sealed configuration (Open Type), CHG Bearing pre-charges 71907/VA9D1 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
To safeguard CHG Bearing 71907/VA9D1 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (35 mm x 55 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
For international ocean and air freight, CHG Bearing packs 71907/VA9D1 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.
