Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Deep groove ball bearings | |
| Bore diameter | d | 50 mm |
| Outside diameter | D | 130 mm |
| Width | B | 31 mm |
| Basic dynamic load rating | C | 87.1 kN |
| Basic static load rating | C0 | 52 kN |
| Fatigue load limit | Pu | 2.2 kN |
| Reference speed | nref | 12000 r/min |
| Limiting speed | nG | 7500 r/min |
| Mass | ≈m | 1.95 kg |
| Precision class | Normal | |
| Internal clearance | CN | |
| Sealing | Without | |
| Cage | Sheet metal | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Precision classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial ball bearing tolerance equivalent | ABEC 1Derived from ISO Normal; 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 | 50.0 mm | |
| Outside diameter | 130.0 mm | |
| Width | 31.0 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 dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter of shaft abutment | d a | min. 64 mm |
| Diameter of housing abutment | D a | max. 116 mm |
| Diameter of snap ring recess in the housing | D b | min. 141 mm |
| Width of snap ring recess in the housing | b a | min. 3.5 mm |
| Distance from outer ring side face to snap ring back face | C a | max. 6.88 mm |
| Radius of shaft or housing fillet | r a | max. 2 mm |
Engineering — Calculation data7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | C | 87.1 kN |
| Basic static load rating | C 0 | 52 kN |
| Fatigue load limit | P u | 2.2 kN |
| Reference speed | 12000 r/min | |
| Limiting speed | 7500 r/min | |
| Minimum load factor | k r | 0.04 |
| Calculation factor | f 0 | 12 |
Engineering — Dimensions16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 50 mm |
| Deviation limits of mid-range bore diameter | t Δdmp | -0.012 to 0 mm |
| Outside diameter | D | 130 mm |
| Deviation limits of mid-range outside diameter | t ΔDmp | -0.018 to 0 mm |
| Width | B | 31 mm |
| Deviation limits of ring width | t ΔBs | -0.12 to 0 mm |
| Shoulder diameter | d 1 | ≈ 75.46 mm |
| Shoulder diameter | D 1 | ≈ 104.25 mm |
| Diameter of snap ring groove | D 3 | 125.22 mm |
| Outside diameter of snap ring | D 4 | 139.7 mm |
| Width of snap ring groove | b | 3.1 mm |
| Distance from outer ring side face to snap ring groove | C | 4.06 mm |
| Width of snap ring | f | 2.82 mm |
| Bottom radius of snap ring groove | r 0 | max. 0.6 mm |
| Chamfer dimension | r 1,2 | min. 2.1 mm |
| ISO tolerance class for dimensions | Normal |
Engineering — Included products1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Snap ring | SP 130 |
Engineering — Tolerances of run-out3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Range of section height at inner ring of assembled bearing | t Kia | 15 µm |
| Range of section height at outer ring of assembled bearing | t Kea | 40 µm |
| ISO tolerance class for geometrical tolerances | Normal |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 1.95 kg | |
| eClass code | 23-05-08-01 | |
| UNSPSC code | 31171504 |
Performance4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 87.1 kN | |
| Basic static load rating | 52.0 kN | |
| Reference speed | 12000.0 r/min | |
| Limiting speed | 7500.0 r/min |
Properties13 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Filling slots | Without | |
| Number of rows | 1 | |
| Locating feature, bearing outer ring | Snap ring (fitted) | |
| Bore type | Cylindrical | |
| Cage | Sheet metal | |
| Matched arrangement | No | |
| Radial internal clearance | CN | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | Without | |
| Indicative carbon footprint for new product | 7.2 kg CO 2 e |