Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Super-precision angular contact thrust ball bearings | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 47 mm |
| Height | H | 15 mm |
| Basic dynamic load rating | C | 22 kN |
| Basic static load rating | C0 | 49 kN |
| Fatigue load limit | Pu | 1.8 kN |
| Mass | ≈m | 0.127 kg |
| Sealing | Without | |
| Cage | Non-metallic | |
| Bearing material | Bearing steel |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 20.0 mm | |
| Outside diameter | 47.0 mm | |
| Height | 15.0 mm | |
| Contact angle | 62.0 ° |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Super-precision angular contact thrust ball bearings | |
| Official taxonomy path | /products/super-precision-bearings/angular-contact-thrust-ball-bearings-for-screw-drives | |
| Structure group ID | BDA_010 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter of shaft abutment | d a | min. 27 mm |
| Diameter of shaft abutment | d b | min. 27 mm |
| Diameter of housing abutment | D a | max. 42.5 mm |
| Diameter of housing abutment | D b | max. 42.5 mm |
| Radius of housing fillet | r a | max. 1 mm |
Engineering — Calculation data11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | C | 22 kN |
| Basic static load rating | C 0 | 49 kN |
| Fatigue load limit | P u | 1.8 kN |
| Attainable speed for grease lubrication | 9000 r/min | |
| Attainable speed for oil-air lubrication | 12000 r/min | |
| Contact angle | α | 62 ° |
| Preload | 1480 N | |
| Frictional moment | 0.05 N·m | |
| Axial stiffness for preload A (sets of two brgs back-to-back or face-to-face) | 680 N/µm | |
| Maximum axial load carrying capacity | F a | max. 14.5 kN |
| Reference grease quantity | G ref | 1.4 cm³ |
Engineering — Dimensions9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 20 mm |
| Outside diameter | D | 47 mm |
| Height | H | 15 mm |
| Shoulder diameter | d 1 | 29.4 mm |
| Shoulder diameter | d 2 | 34.5 mm |
| Shoulder/recess diameter | D 1 | 34.6 mm |
| Shoulder/recess diameter | D 2 | 40.65 mm |
| Chamfer dimension | r 1,2 | min. 1 mm |
| Distance to pressure point | a | 40 mm |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 0.127 kg | |
| eClass code | 23-05-08-03 | |
| UNSPSC code | 31171507 |
Performance4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 22.0 kN | |
| Basic static load rating | 49.0 kN | |
| Attainable speed for grease lubrication | 9000.0 r/min | |
| Attainable speed for oil-air lubrication | 12000.0 r/min |
Properties10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Axial load capability | Single-direction | |
| Number of rows | 1 | |
| Locating feature, bearing outer ring | Without | |
| Cage | Non-metallic | |
| Tolerance class | Special | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Relubrication feature | Without | |
| Indicative carbon footprint for new product | 0.47 kg CO 2 e |