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 | Angular contact ball bearings | |
| Bore diameter | d | 55 mm |
| Outside diameter | D | 120 mm |
| Width | B | 29 mm |
| Basic dynamic load rating | C | 85 kN |
| Basic static load rating | C0 | 60 kN |
| Fatigue load limit | Pu | 2.55 kN |
| Reference speed | nref | 7000 r/min |
| Limiting speed | nG | 7000 r/min |
| Mass | ≈m | 1.39 kg |
| Precision class | P6 | |
| Sealing | Without | |
| Cage | Steel sheet metal | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Precision classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial ball bearing tolerance equivalent | ABEC 3Derived from ISO P6; not a direct ABEC marking | |
| Mapping basis | ISO 492 / ANSI/ABMA 20The original manufacturer tolerance remains the controlling value. |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 55.0 mm | |
| Outside diameter | 120.0 mm | |
| Width | 29.0 mm | |
| Contact angle | 40.0 ° |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Angular contact ball bearings | |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/angular-contact-ball-bearings/single-row-angular-contact-ball-bearings | |
| Structure group ID | BA1_001_101 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter of shaft abutment | d a | min. 66 mm |
| Abutment diameter housing | D a | max. 109 mm |
| Diameter of housing abutment | D b | max. 114 mm |
| Radius of fillet | r a | max. 2 mm |
| Radius of fillet | r b | max. 1 mm |
Engineering — Calculation data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 85 kN |
| Basic static load rating | C 0 | 60 kN |
| Fatigue load limit | P u | 2.55 kN |
| Reference speed | 7000 r/min | |
| Limiting speed | 7000 r/min | |
| Minimum axial load factor | A | 0.06 |
| Minimum radial load factor | k r | 0.1 |
| Limiting value | e | 1.1 |
Engineering — Calculation data — Bearing pair arranged back-to-back or face-to-face4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Calculation factor (back-to-back, face-to-face) | X | 0.57 |
| Calculation factor (back-to-back, face-to-face) | Y 0 | 0.52 |
| Calculation factor (back-to-back, face-to-face) | Y 1 | 0.55 |
| Calculation factor (back-to-back, face-to-face) | Y 2 | 0.93 |
Engineering — Calculation data — Single bearing or bearing pair arranged in tandem3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Calculation factor (single, tandem) | X | 0.35 |
| Calculation factor (single, tandem) | Y 0 | 0.26 |
| Calculation factor (single, tandem) | Y 2 | 0.57 |
Engineering — Dimensions13 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 55 mm |
| Deviation limits of mid-range bore diameter | t Δdmp | -0.012 to 0 mm |
| Outside diameter | D | 120 mm |
| Deviation limits of mid-range outside diameter | t ΔDmp | -0.013 to 0 mm |
| Width | B | 29 mm |
| Deviation limits of ring width | t ΔBs | -0.15 to 0 mm |
| Shoulder diameter of inner ring (large side face) | d 1 | ≈ 80.3 mm |
| Shoulder diameter of inner ring (small side face) | d 2 | ≈ 66.66 mm |
| Shoulder diameter of outer ring (large side face) | D 1 | ≈ 96.6 mm |
| Distance side face to pressure point | a | 51 mm |
| Chamfer dimension | r 1,2 | min. 2 mm |
| Chamfer dimension | r 3,4 | min. 1 mm |
| ISO tolerance class for dimensions | P6 |
Engineering — Tolerances of run-out5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Range of section height at inner ring of assembled bearing | t Kia | 5 µm |
| Maximum run-out of inner ring side face to the bore | t Sd | 8 µm |
| Range of section height at outer ring of assembled bearing | t Kea | 10 µm |
| Perpendicularity of outer ring outside surface | t SD | 4.5 µm |
| ISO tolerance class for geometrical tolerances | P5 |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 1.39 kg | |
| eClass code | 23-05-08-03 | |
| UNSPSC code | 31171531 |
Performance5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 85.0 kN | |
| Basic static load rating | 60.0 kN | |
| Reference speed | 7000.0 r/min | |
| Limiting speed | 7000.0 r/min | |
| SKF performance class | SKF Explorer |
Properties16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Contact type | Normal contact (two-point contact) | |
| Number of rows | 1 | |
| Locating feature, bearing outer ring | Without | |
| Ring type | One-piece inner and outer rings | |
| Cage | Steel sheet metal | |
| Matched arrangement | No | |
| Universal matching bearing | Yes | |
| Axial internal clearance | Not applicable | |
| Matched condition (axial clearance/ preload) | Axial clearance CB | |
| Tolerance class | Class 6 (P6) | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | Without | |
| Indicative carbon footprint for new product | 5.2 kg CO 2 e |
