Configuration
Full designation, seals or shields, accuracy, clearance, cage, material and any matched arrangement.

BEARING SPECIFICATION / 7210
50 × 90 × 20 mm · Combined loads. Controlled axial support. Compare the sourced reference data and specify your SANJ requirement.

Angular Contact Ball Bearings
7210 identifies a angular contact ball bearing reference with 50 mm bore, 90 mm outside diameter and 20 mm overall width or height.
A contact angle supports combined radial and axial loads. A single row supports axial load in one direction; paired arrangements require preload and matching to be specified.
REFERENCE SPECIFICATION
Full factual values from the source designation 7210. Mounting dimensions and reference mass relate to that design; they must be checked against the final SANJ drawing.
Load ratings: kN · dimensions: mm · speed: min⁻¹ · mass: kg
| Parameter | Reference value |
|---|---|
| d | 50 mm |
| D | 90 mm |
| B | 20 mm |
| r(min.) | 1.1 mm |
| r1(min.) | 0.6 mm |
| Basic load ratings : Cr | 51.6 kN |
| Basic load ratings : C0r | 31.5 kN |
| Fatigue load limit : Cu | 1.95 kN |
| factor : f0 | - |
| Limiting speeds(Grease lub.) | 6800 min-1 |
| Limiting speeds(Oil lub.) | 8800 min-1 |
| Load center spread : a | 30.4 mm |
| da(min.) | 57 mm |
| Da(max.) | 83 mm |
| ra(max.) | 1 mm |
| Mass(Refer.) | 0.485 kg |
SELECTION CONTEXT
7210 belongs to the angular contact ball bearings family. Its reference envelope is 50 mm bore, 90 mm outside diameter and 20 mm overall width or height.
A contact angle supports combined radial and axial loads. A single row supports axial load in one direction; paired arrangements require preload and matching to be specified.
For a manufacturing enquiry, provide the complete designation and operating conditions. Matching the dimensional envelope alone does not confirm interchangeability or equivalent performance.
No. Matching 50 × 90 × 20 mm establishes the boundary dimensions. The full designation, tolerances, clearance, contact angle or roller arrangement, seals, cage, lubrication and performance must also be checked.
Understand bearing load ratings →PREPARE A USEFUL ENQUIRY
A complete brief reduces assumptions and gives the quotation a clear technical basis.
Full designation, seals or shields, accuracy, clearance, cage, material and any matched arrangement.
Radial and axial loads, speed, temperature, lubrication, fits, environment and expected service.
Quantity, destination, packing, inspection records, drawing approval and delivery requirement.
FROM MODEL TO REQUIREMENT
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