Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications13 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Needle roller bearings | |
| Outside diameter | D | 68 mm |
| Width | B | 40 mm |
| Basic dynamic load rating | C | 81.5 kN |
| Basic static load rating | C0 | 137 kN |
| Fatigue load limit | Pu | 17.3 kN |
| Reference speed | nref | 7500 r/min |
| Limiting speed | nG | 8500 r/min |
| Mass | ≈m | 0.338 kg |
| Sealing | Without | |
| Cage | Sheet steel | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter of needle roller complement | 52.0 mm | |
| Outside diameter | 68.0 mm | |
| Width | 40.0 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_002 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter of housing abutment | D a | max. 64 mm |
| Fillet radius | r a | max. 0.6 mm |
Engineering — Associated seals1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Radial shaft seal | 52x68x8 HMS5 RG |
Engineering — Calculation data6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 81.5 kN |
| Basic static load rating | C 0 | 137 kN |
| Fatigue load limit | P u | 17.3 kN |
| Reference speed | 7500 r/min | |
| Limiting speed | 8500 r/min |
Engineering — Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter under rollers | F w | 52 mm |
| Outside diameter | D | 68 mm |
| Width | C | 40 mm |
| Chamfer dimension outer ring | r 1,2 | min. 0.6 mm |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 0.338 kg | |
| eClass code | 23-05-09-03 | |
| UNSPSC code | 31171512 |
Performance5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 81.5 kN | |
| Basic static load rating | 137.0 kN | |
| Reference speed | 7500.0 r/min | |
| Limiting speed | 8500.0 r/min | |
| SKF performance class | SKF Explorer |
Properties13 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bearing part | Bearing without inner ring | |
| Number of rows | 2 | |
| Outer ring type | Machined (solid) | |
| Aligning feature | Without | |
| Cage | Sheet steel | |
| Number of flanges, outer ring | 3 | |
| Tolerance class | Normal | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | With | |
| Indicative carbon footprint for new product | 1.3 kg CO 2 e |