Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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You entered 309WG. This table explores the base group 309; it does not preserve or approve every requested suffix. Search your complete marking first →
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.
“309” across 2 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.
Brand differences at a glance
| Parameter | SKF30945 × 100 × 25 mm | TIMKEN309W45 × 100 × 25 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | TIMKEN |
| Designation | 309 | 309W |
| Product family | Deep groove ball bearings | Radial Deep-Groove Ball |
| Detailed type | Deep groove ball bearing with filling slots | Deep groove ball bearings |
| Series | — | 300 |
| Bore diameterd | 45 mm | 45 mm |
| Outside diameterD | 100 mm | 100 mm |
| WidthB | 25 mm | 25 mm |
| Basic dynamic load ratingC | 55 kN | 69.1 kN |
| Basic static load ratingC0 | 44 kN | 47.5 kN |
| Fatigue load limitPu | 1.86 kN | — |
| Reference speednref | 13000 r/min | — |
| Limiting speednG | 7500 r/min | — |
| Mass≈m | 0.89 kg | 0.83 kg |
| Internal clearance | CN | — |
| Sealing | Without | Open |
| Cage | Sheet metal | Steel cage |
| Bearing material | Bearing steel | — |
| Lubricant | None | — |
| Calculation Factors | ||
| K Factor | — | 0.00 |
| Y1 Factor | — | 0.00 |
| Y2 Factor | — | 0.00 |
| Y0 Factor | — | 0.50 |
| E Factor | — | 0.00 |
| Cg Factor | — | 0.0455 |
| Engineering — Abutment dimensions | ||
| Diameter of shaft abutmentd a | min. 54 mm | — |
| Diameter of housing abutmentD a | max. 91 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 | ≈ 62.18 mm | — |
| Recess diameterD 2 | ≈ 86.7 mm | — |
| Chamfer dimensionr 1,2 | min. 1.5 mm | — |
| Logistics | ||
| Product net weight | 0.89 kg | — |
| eClass code | 23-05-08-01 | — |
| UNSPSC code | 31171504 | — |
| Manufacturer Identity | ||
| Material Number | — | 000000000100155244 |
| World Assembly Part Number | — | 309W |
| Upc | — | 0087796042933 |
| Official Source System | — | CORE BP - DS DF |
| Official Last Run | — | 2026-08-23T20:02:47.487 |
| 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 | 1.7717 in Bore | 3.9370 in OD | 0.9840 in Width | Open | Cylindrical Bore | Steel Cage | C0 Clearance | ISO P0 Tolerance |
| 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 | 3.3 kg CO 2 e | — |
| Technical Data | ||
| Overall Width | — | 0.000 mm |
| Radial Rating | — | 76,700 N |
| Axial Rating | — | 0 N |
| Dynamic Rating C1 | — | 69,100 N |
| Dynamic Rating C90 | — | 0 N |
| Dynamic Axial Rating Ca90 | — | 0 N |
| Dynamic Axial Rating Ca1 | — | 0 N |
| Static Radial Rating C0 | — | 47,500 N |
| Extended Dynamic Rating Ce | — | 76,700 N |
| 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.