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 | Cylindrical roller bearings | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 42 mm |
| Width | B | 30 mm |
| Basic dynamic load rating | C | 45.7 kN |
| Basic static load rating | C0 | 55 kN |
| Fatigue load limit | Pu | 5.7 kN |
| Limiting speed | nG | 3400 r/min |
| Mass | ≈m | 0.193 kg |
| Internal clearance | CN | |
| Sealing | Seal on both sides | |
| Cage | Without | |
| Lubricant | Grease |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 20.0 mm | |
| Outside diameter | 42.0 mm | |
| Width | 30.0 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 dimensions7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Abutment diameter shaft | d a | min. 24 mm |
| Abutment diameter shaft | d as | 28.8 mm |
| Abutment width applying for SW snap rings (sealed brg.) | C a1 | 21.5 mm |
| Tolerance for abutment C a (SW snap rings) | – 0.2 mm | |
| Abutment width applying for DIN 471 snap rings (sealed brg.) | C a2 | 21 mm |
| Tolerance for abutment C a (DIN 471 snap rings) | – 0.2 mm | |
| Fillet radius | r a | max. 0.3 mm |
Engineering — Associated products2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Snap ring Seeger | SW 42 | |
| Snap ring in accordance with DIN 471 | 42x1.75 |
Engineering — Calculation data5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | C | 45.7 kN |
| Basic static load rating | C 0 | 55 kN |
| Fatigue load limit | P u | 5.7 kN |
| Limiting speed | 3400 r/min | |
| Minimum load factor | k r | 0.4 |
Engineering — Dimensions14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 20 mm |
| Outside diameter | D | 42 mm |
| Width | B | 30 mm |
| Outer ring width (sealed bearing) | C | 29 mm |
| Shoulder diameter inner ring | d 1 | ≈ 30.6 mm |
| Snap ring groove diameter at outer ring | D 3 | 40.2 mm |
| Distance between two snap ring grooves of the outer ring outside surface | C 1 | 24.7 mm |
| Tolerance for distance C 1 | + 0.2 mm | |
| Distance outer ring side face - snap ring groove (sealed bearing) | C 2 | 2.15 mm |
| Width snap ring groove outer ring | b | 1.8 mm |
| Width annular lubrication groove outer ring | b 1 | 6.5 mm |
| Diameter lubrication hole (outer ring) | K | 3.5 mm |
| Chamfer dimension (sealed bearing) | r | min. 0.5 mm |
| Chamfer dimension | r 3,4 | min. 0.3 mm |
Logistics2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 0.193 kg | |
| UNSPSC code | 31171505 |
Performance3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 45.7 kN | |
| Basic static load rating | 55.0 kN | |
| Limiting speed | 3400.0 r/min |
Properties17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bearing part | Complete bearing | |
| Axial displacement capability | None | |
| Number of rows | 2 | |
| Locating feature, bearing outer ring | Snap ring groove | |
| Bore type | Cylindrical | |
| Cage | Without | |
| Number of flanges, outer ring | 1 | |
| Number of flanges, inner ring | 2 | |
| Loose flange | None | |
| Radial internal clearance | CN | |
| Tolerance class | Normal | |
| Coating | Without | |
| Sealing | Seal on both sides | |
| Sealing type | Contact | |
| Lubricant | Grease | |
| Relubrication feature | With | |
| Indicative carbon footprint for new product | 0.72 kg CO 2 e |