Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Cylindrical roller bearings | |
| Bore diameter | d | 30 mm |
| Outside diameter | D | 55 mm |
| Width | B | 34 mm |
| Basic dynamic load rating | C | 73.7 kN |
| Basic static load rating | C0 | 88 kN |
| Fatigue load limit | Pu | 10 kN |
| Reference speed | nref | 6000 r/min |
| Limiting speed | nG | 7500 r/min |
| Mass | ≈m | 0.348 kg |
| Internal clearance | CN | |
| Sealing | Without | |
| Cage | Without | |
| Lubricant | None |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 30.0 mm | |
| Outside diameter | 55.0 mm | |
| Width | 34.0 mm |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Cylindrical roller bearings | |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/cylindrical-roller-bearings/double-row-full-complement-cylindrical-roller-bearings | |
| Structure group ID | BC2_002 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Abutment diameter shaft | d a | min. 34.7 mm |
| Abutment diameter shaft | d as | 37.8 mm |
| Abutment diameter housing | D a | max. 50.3 mm |
| Fillet radius | r a | max. 1 mm |
| Fillet radius | r b | max. 0.3 mm |
Engineering — Calculation data6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | C | 73.7 kN |
| Basic static load rating | C 0 | 88 kN |
| Fatigue load limit | P u | 10 kN |
| Reference speed | 6000 r/min | |
| Limiting speed | 7500 r/min | |
| Minimum load factor | k r | 0.5 |
Engineering — Dimensions10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 30 mm |
| Outside diameter | D | 55 mm |
| Width | B | 34 mm |
| Shoulder diameter inner ring | d 1 | ≈ 40 mm |
| Shoulder diameter outer ring | D 1 | ≈ 45.5 mm |
| Width annular lubrication groove outer ring | b 1 | 4.5 mm |
| Diameter lubrication hole (outer ring) | K | 3 mm |
| Permissible axial displacement from the normal position of one bearing ring relative to the other | s | max. 1.5 mm |
| Chamfer dimension (open bearings) | r 1,2 | min. 1 mm |
| Chamfer dimension | r 3,4 | min. 0.3 mm |
Logistics2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 0.348 kg | |
| UNSPSC code | 31171505 |
Performance4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 73.7 kN | |
| Basic static load rating | 88.0 kN | |
| Reference speed | 6000.0 r/min | |
| Limiting speed | 7500.0 r/min |
Properties16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bearing part | Complete bearing | |
| Axial displacement capability | In one direction | |
| Number of rows | 2 | |
| Locating feature, bearing outer ring | Without | |
| Bore type | Cylindrical | |
| Cage | Without | |
| Number of flanges, outer ring | 1 | |
| Number of flanges, inner ring | 3 | |
| Loose flange | None | |
| Radial internal clearance | CN | |
| Tolerance class | Normal | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | With | |
| Indicative carbon footprint for new product | 1.3 kg CO 2 e |