Timken 6303-2Z Bearing — Specifications, Dimensions & Cross-Reference
The Timken 6303-2Z is a deep groove ball bearing double metal shielded manufactured by Timken. It belongs to the 6300 series and features dimensions of 17 × 47 × 14 mm (bore × OD × width). This bearing has a dynamic load rating of 13,500 N and a static load rating of 6,550 N, making it suitable for medium-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 17 mm |
| Outside Diameter (D) | 47 mm |
| Width (B) | 14 mm |
| Weight | 0.107 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 13,500 N |
| Static Load Rating (C₀r) | 6,550 N |
| Limiting Speed (Grease) | 16,000 rpm |
| Limiting Speed (Oil) | 19,000 rpm |
Brand Cross-Reference — 6303-2Z Equivalents
The following bearings from other manufacturers are interchangeable with the Timken 6303-2Z. All share identical dimensions (17×47×14mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| Timken | Timken 6303-2Z ✦ | 13,500 | 6,550 |
| SKF | SKF 6303-2Z | 13,500 | 6,550 |
| NTN | NTN 6303-2Z | 13,500 | 6,550 |
| NACHI | NACHI 6303-2Z | 13,500 | 6,550 |
| KOYO | KOYO 6303-2Z | 13,500 | 6,550 |
| FAG | FAG 6303-2Z | 13,500 | 6,550 |
| Timken | Timken 6303-2Z | 13,500 | 6,550 |
| NSK | NSK 6303-2Z | 13,500 | 6,550 |
| NTN | NTN 6303-2Z | 13,500 | 6,550 |
| SKF | SKF 6303-2Z | 13,500 | 6,550 |
Available Variants
The Timken 6303 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the Timken 6303-2Z?
The Timken 6303-2Z has a bore diameter of 17mm, outside diameter of 47mm, and width of 14mm. It weighs 0.107kg.
What is the load capacity of the Timken 6303-2Z?
The dynamic load rating (Cr) is 13,500 N and the static load rating (C₀r) is 6,550 N. The maximum recommended speed is 16,000 rpm with grease lubrication or 19,000 rpm with oil lubrication.
What bearings are equivalent to Timken 6303-2Z?
The 6303-2Z is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 17×47×14mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.