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 | Deep groove ball bearings | |
| Bore diameter | d | 55 mm |
| Outside diameter | D | 120 mm |
| Width | B | 29 mm |
| Basic dynamic load rating | C | 74.1 kN |
| Basic static load rating | C0 | 45 kN |
| Fatigue load limit | Pu | 1.9 kN |
| Limiting speed | nG | 3800 r/min |
| Mass | ≈m | 1.4 kg |
| Precision class | P6 and tighter width tolerance | |
| Internal clearance | CN | |
| Sealing | Seal on both sides | |
| Cage | Sheet metal | |
| Bearing material | Bearing steel | |
| Lubricant | Grease |
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. |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 55.0 mm | |
| Outside diameter | 120.0 mm | |
| Width | 29.0 mm |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Deep groove ball bearings | |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/deep-groove-ball-bearings | |
| Structure group ID | BB1_001_101 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter of shaft abutment | d a | min. 66 mm |
| Diameter of shaft abutment | d a | max. 70.8 mm |
| Diameter of housing abutment | D a | max. 109 mm |
| Radius of shaft or housing fillet | r a | max. 2 mm |
Engineering — Calculation data7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 74.1 kN |
| Basic static load rating | C 0 | 45 kN |
| Fatigue load limit | P u | 1.9 kN |
| Limiting speed | 3800 r/min | |
| Minimum load factor | k r | 0.03 |
| Calculation factor | f 0 | 13.1 |
Engineering — Dimensions10 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 | -0.1 to 0 mm |
| Recess diameter | d 2 | ≈ 71.144 mm |
| Recess diameter | D 2 | ≈ 104.3 mm |
| Chamfer dimension | r 1,2 | min. 2 mm |
| ISO tolerance class for dimensions | P6 and tighter width tolerance |
Engineering — Tolerances of run-out3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Range of section height at inner ring of assembled bearing | t Kia | 20 µm |
| Range of section height at outer ring of assembled bearing | t Kea | 35 µm |
| ISO tolerance class for geometrical tolerances | Normal |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 1.4 kg | |
| eClass code | 23-05-08-01 | |
| UNSPSC code | 31171504 |
Performance4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 74.1 kN | |
| Basic static load rating | 45.0 kN | |
| Limiting speed | 3800.0 r/min | |
| SKF performance class | SKF Explorer |
Properties14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Filling slots | Without | |
| Number of rows | 1 | |
| Locating feature, bearing outer ring | Without | |
| Bore type | Cylindrical | |
| Cage | Sheet metal | |
| Matched arrangement | No | |
| Radial internal clearance | CN | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Seal on both sides | |
| Sealing type | Contact | |
| Lubricant | Grease | |
| Relubrication feature | Without | |
| Indicative carbon footprint for new product | 5.2 kg CO 2 e |