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

BEARING SPECIFICATION / 6309
45 × 100 × 25 mm · Versatile radial support for compact rotating assemblies. Compare the sourced reference data and specify your SANJ requirement.

Deep Groove Ball Bearings
6309 identifies a deep groove ball bearing reference with 45 mm bore, 100 mm outside diameter and 25 mm overall width or height.
Suitable for radial loads and moderate axial loads in both directions. Confirm sealing, clearance and lubrication for the duty.
REFERENCE SPECIFICATION
Full factual values from the source designation 6309. 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 | 45 mm |
| D | 100 mm |
| B | 25 mm |
| r(min.) | 1.5 mm |
| Basic load ratings : Cr | 61.1 kN |
| Basic load ratings : C0r | 29.5 kN |
| Fatigue load limit : Cu | 2.25 kN |
| factor : f0 | 13.3 |
| Limiting speeds(Grease lub.) | 6800 min-1 |
| Limiting speeds(Oil lub.) | 8100 min-1 |
| da(min.) | 53 mm |
| Da(max.) | 92 mm |
| ra(max.) | 1.5 mm |
| Mass(Refer.) | 0.833 kg |
SELECTION CONTEXT
6309 belongs to the deep groove ball bearings family. Its reference envelope is 45 mm bore, 100 mm outside diameter and 25 mm overall width or height.
Suitable for radial loads and moderate axial loads in both directions. Confirm sealing, clearance and lubrication for the duty.
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 45 × 100 × 25 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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