Manufactured by CHG Bearing, the 71813 ACD/P4TBTB is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 65 mm bore diameter, a 85 mm outer diameter, and a 30 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.

71813 ACD/P4TBTB - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71813 ACD/P4TBTB |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Angular Contact Ball Bearing |
| Number of Rows | 3 |
| Contact Type | Normal Contact (Two-point Contact) |
| Ring Type | Integral Inner and Outer Rings |
| Design | High-capacity D Design |
| Universally Matchable | No |
| Number of Bearings in Set | 3 |
| Axial Clearance / Preload | Light Preload |
| Tolerance Class | P4 |
| Bearing Material | Bearing Steel |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 65 mm |
| Width (B) | 30 mm |
| Outer Diameter (D) | 85 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 27.6 kN |
| Basic Static Load Rating C₀ (kN) | 41.5 kN |
| Material | |
| Weight (kg) | 0.378 kg |
71813 ACD/P4TBTB 85 mm 65 mm 30 mm Frequently Asked Questions about 71813 ACD/P4TBTB 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 71813 ACD/P4TBTB with a precision bore diameter (d) of 65 mm, an outside diameter (D) of 85 mm, and a nominal ring width (B) of 30 mm. This configuration yields an effective cross-sectional wall thickness of 10.0 mm and an envelope ratio (D/d) of 1.31, delivering compact rigidity for OEM machinery housings.
Model 71813 ACD/P4TBTB is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 65 mm) and steep thermal gradients between inner and outer rings.
Absolutely. The CHG Bearing 71813 ACD/P4TBTB Super-precision Angular Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 71813 ACD/P4TBTB, FAG 71813 ACD/P4TBTB, NSK 71813 ACD/P4TBTB. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
The Open Type engineered for 71813 ACD/P4TBTB 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.
