Configuration
Full designation, seals or shields, accuracy, clearance, cage, material and any matched arrangement.
BEARING SPECIFICATION / 6303
6303 Deep Groove Ball Bearing
17 × 47 × 14 mm · Versatile radial support for compact rotating assemblies. Compare the sourced reference data and specify your SANJ requirement.
Deep Groove Ball Bearings
6303 at a glance
6303 identifies a deep groove ball bearing reference with 17 mm bore, 47 mm outside diameter and 14 mm overall width or height.
- Bore / d
- 17 mm
- Outside / D
- 47 mm
- Width / B
- 14 mm
Suitable for radial loads and moderate axial loads in both directions. Confirm sealing, clearance and lubrication for the duty.
Reference configuration: 6303
Ratings below belong to the identified JTEKT / Koyo source record. SANJ material, internal design, performance and supply scope require a confirmed quotation and datasheet.
Ratings below belong to the identified JTEKT / Koyo source record. SANJ material, internal design, performance and supply scope require a confirmed quotation and datasheet.
REFERENCE SPECIFICATION
All the details.
One clear source.
Full factual values from the source designation 6303. 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 | 17 mm |
| D | 47 mm |
| B | 14 mm |
| r(min.) | 1 mm |
| Basic load ratings : Cr | 17.0 kN |
| Basic load ratings : C0r | 6.65 kN |
| Fatigue load limit : Cu | 0.550 kN |
| factor : f0 | 12.4 |
| Limiting speeds(Grease lub.) | 15000 min-1 |
| Limiting speeds(Oil lub.) | 18000 min-1 |
| da(min.) | 22 mm |
| Da(max.) | 42 mm |
| ra(max.) | 1 mm |
| Mass(Refer.) | 0.115 kg |
SELECTION CONTEXT
Match the bearing
to its duty.
6303 belongs to the deep groove ball bearings family. Its reference envelope is 17 mm bore, 47 mm outside diameter and 14 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.
Is the same size a direct replacement?
No. Matching 17 × 47 × 14 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
Specify what the model
number leaves open.
A complete brief reduces assumptions and gives the quotation a clear technical basis.
Operating duty
Radial and axial loads, speed, temperature, lubrication, fits, environment and expected service.
Supply requirement
Quantity, destination, packing, inspection records, drawing approval and delivery requirement.
CONTINUE COMPARING
