Cross-brand designation analysis
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Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
Automatic candidate selection
One base designation across loaded brands
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Dimensions verified
“308” across 3 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKF30840 × 90 × 23 mm | INA308-NPP-B40 × 90 × 23 mm | TIMKEN308W40 × 90 × 23 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | INA | TIMKEN |
| Designation | 308 | 308-NPP-B | 308W |
| Product family | Deep groove ball bearings | — | Radial Deep-Groove Ball |
| Detailed type | Deep groove ball bearing with filling slots | Self-aligning deep groove ball bearings | Deep groove ball bearings |
| Series | — | 308 | 300 |
| Bore diameterd | 40 mm | 40 mm | 40 mm |
| Outside diameterD | 90 mm | 90 mm | 90 mm |
| WidthB | 23 mm | 23 mm | 23 mm |
| Basic dynamic load ratingC | 45.7 kN | 47 kN | 58.1 kN |
| Basic static load ratingC0 | 36 kN | 26 kN | 39.1 kN |
| Fatigue load limitPu | 1.53 kN | — | — |
| Reference speednref | 14000 r/min | — | — |
| Limiting speednG | 8500 r/min | — | — |
| Mass≈m | 0.671 kg | 0.63 kg | 0.62 kg |
| Internal clearance | CN | — | — |
| Sealing | Without | — | Open |
| Cage | Sheet metal | — | Steel cage |
| Bearing material | Bearing steel | — | — |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -20 °C | — |
| Maximum operating temperatureTmax | — | 100 °C | — |
| Calculation Factors | |||
| K Factor | — | — | 0.00 |
| Y1 Factor | — | — | 0.00 |
| Y2 Factor | — | — | 0.00 |
| Y0 Factor | — | — | 0.50 |
| E Factor | — | — | 0.00 |
| Cg Factor | — | — | 0.0425 |
| Engineering — Abutment dimensions | |||
| Diameter of shaft abutmentd a | min. 49 mm | — | — |
| Diameter of housing abutmentD a | max. 81 mm | — | — |
| Radius of shaft or housing filletr a | max. 1.5 mm | — | — |
| Engineering — Calculation data | |||
| Minimum load factork r | 0.05 | — | — |
| Engineering — Dimensions | |||
| Shoulder diameterd 1 | ≈ 56.11 mm | — | — |
| Recess diameterD 2 | ≈ 77.7 mm | — | — |
| Chamfer dimensionr 1,2 | min. 1.5 mm | — | — |
| Logistics | |||
| Product net weight | 0.671 kg | — | — |
| eClass code | 23-05-08-01 | — | — |
| UNSPSC code | 31171504 | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 357191 | — |
| Material Number | — | — | 000000000100155239 |
| Base Type | — | 308 | — |
| World Assembly Part Number | — | — | 308W |
| Gpsd Group | — | I04 | — |
| Upc | — | — | 0087796042780 |
| Product Line Id | — | 72 | — |
| X Life Marking | — | n.r. | — |
| Official Source System | — | — | CORE BP - DS DF |
| Official Last Run | — | — | 2026-08-23T20:02:46.157 |
| Product identity | |||
| 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 | — | — |
| Product Identity | |||
| Type Description | — | — | Radial Deep-Groove Ball |
| Construction | — | — | Single Row Deep Groove Ball Bearing | Imperial Series | 1.5748 in Bore | 3.5433 in OD | 0.9060 in Width | Open | Cylindrical Bore | Steel Cage | C0 Clearance | ISO P0 Tolerance |
| Short Description | — | Self-aligning deep groove ball bearings | — |
| Number Of Rows | 1 | — | 1 |
| Tapered Bore | — | — | N |
| Properties | |||
| Filling slots | With | — | — |
| Locating feature, bearing outer ring | Without | — | — |
| Bore type | Cylindrical | — | — |
| Matched arrangement | No | — | — |
| Radial internal clearance | CN | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Indicative carbon footprint for new product | 2.5 kg CO 2 e | — | — |
| Technical Data | |||
| Overall Width | — | — | 0.000 mm |
| Bore Diameter (D) | — | 40 mm | — |
| Radial Rating | — | — | 64,400 N |
| Outside Diameter (Dsp) | — | 90 mm | — |
| Axial Rating | — | — | 0 N |
| Width, Inner Ring (B) | — | 23 mm | — |
| Dynamic Rating C1 | — | — | 58,100 N |
| Basic Dynamic Load Rating, Radial (Cr) | — | 47,000 N | — |
| Dynamic Rating C90 | — | — | 0 N |
| Basic Static Load Rating, Radial (C0R) | — | 26,000 N | — |
| Dynamic Axial Rating Ca90 | — | — | 0 N |
| Operating Temperature Min. (Tmin) | — | -20 °C | — |
| Dynamic Axial Rating Ca1 | — | — | 0 N |
| Operating Temperature Max. (Tmax) | — | 100 °C | — |
| Static Radial Rating C0 | — | — | 39,100 N |
| Rib Diameter Sealing Inner Ring (D2) | — | 55.6 mm | — |
| Extended Dynamic Rating Ce | — | — | 64,400 N |
| Minimum Chamfer Dimension (Rmin) | — | 0.6 mm | — |
| Static Axial Rating C0A | — | — | 0 N |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.