Manufactured by CHG Bearing, the S7021 ACD/P4ATBTB is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 105 mm bore diameter, a 160 mm outer diameter, and a 78 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.

S7021 ACD/P4ATBTB - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | S7021 ACD/P4ATBTB |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Angular Contact Ball Bearing |
| Seal Type | Non-contact Seal |
| 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 | P4A |
| Bearing Material | Bearing Steel |
| Sealing | Sealed on Both Sides |
| Lubricant | Grease |
| Dimensions | |
| Bore Diameter (d) | 105 mm |
| Width (B) | 78 mm |
| Outer Diameter (D) | 160 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 199 kN |
| Basic Static Load Rating C₀ (kN) | 275 kN |
| Material | |
| Weight (kg) | 4.85 kg |
S7021 ACD/P4ATBTB 160 mm 105 mm 78 mm Frequently Asked Questions about S7021 ACD/P4ATBTB Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing S7021 ACD/P4ATBTB 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.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for S7021 ACD/P4ATBTB. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Absolutely. The CHG Bearing S7021 ACD/P4ATBTB Super-precision Angular Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF S7021 ACD/P4ATBTB, FAG S7021 ACD/P4ATBTB, NSK S7021 ACD/P4ATBTB. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Yes, 100% of S7021 ACD/P4ATBTB Super-precision Angular Contact Ball Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
