Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications15 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Needle roller bearings | |
| Bore diameter | d | 50 mm |
| Outside diameter | D | 72 mm |
| Width | B | 22 mm |
| Basic dynamic load rating | C | 55 kN |
| Basic static load rating | C0 | 85 kN |
| Fatigue load limit | Pu | 10.8 kN |
| Reference speed | nref | 7000 r/min |
| Limiting speed | nG | 8000 r/min |
| Mass | ≈m | 0.274 kg |
| Internal clearance | CN | |
| Sealing | Without | |
| Cage | Sheet metal | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 50.0 mm | |
| Outside diameter | 72.0 mm | |
| Width | 22.0 mm |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Needle roller bearings | |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/needle-roller-bearings/needle-roller-bearings-with-machined-rings | |
| Structure group ID | BN1_003 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Smallest permissible abutment diameter shaft, bearings with flanges | d a | min. 54 mm |
| Diameter of housing abutment | D a | max. 68 mm |
| Fillet radius | r a | max. 0.6 mm |
Engineering — Calculation data6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 55 kN |
| Basic static load rating | C 0 | 85 kN |
| Fatigue load limit | P u | 10.8 kN |
| Reference speed | 7000 r/min | |
| Limiting speed | 8000 r/min |
Engineering — Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 50 mm |
| Outside diameter | D | 72 mm |
| Width | B | 22 mm |
| Raceway diameter inner ring | F | 58 mm |
| Chamfer dimension outer ring | r 1,2 | min. 0.6 mm |
| Permissible axial displacement from the normal position of one bearing ring relative to the other | s | max. 1 mm |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 0.274 kg | |
| eClass code | 23-05-09-03 | |
| UNSPSC code | 31171512 |
Performance5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 55.0 kN | |
| Basic static load rating | 85.0 kN | |
| Reference speed | 7000.0 r/min | |
| Limiting speed | 8000.0 r/min | |
| SKF performance class | SKF Explorer |
Properties14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bearing part | Complete bearing | |
| Number of rows | 1 | |
| Outer ring type | Machined (solid) | |
| Aligning feature | Without | |
| Cage | Sheet metal | |
| Number of flanges, outer ring | 2 | |
| Radial internal clearance | CN | |
| Tolerance class | Normal | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | With | |
| Indicative carbon footprint for new product | 1.0 kg CO 2 e |