30204 (Tapered Roller bearing)
The 30204 is a Tapered Roller bearing with boundary dimensions of 20 x 47 x 15.25 mm (bore x outside diameter x width). It has a basic dynamic load rating of 30.8 kN and a basic static load rating of 33.5 kN.
Cross-Reference
| Manufacturer | Reference |
|---|---|
| SKF | 30204 |
| Timken | 30204 |
| FAG (Schaeffler) | 30204 |
Cross-references are matched on the ISO 15 boundary dimensions
(20 x 47 x 15.25 mm) and bearing type, which is what makes parts interchangeable. The
suffixes (e.g. -2RS, -2Z, -E1) encode seals, shields, and internal design
variants, not the envelope size.
Boundary Dimensions
| Dimension | Value |
|---|---|
| Bore (d) | 20 mm |
| Outside diameter (D) | 47 mm |
| Width (B/T) | 15.25 mm |
Load Ratings
| Rating | Value |
|---|---|
| Basic dynamic load rating (C) | 30.8 kN |
| Basic static load rating (C0) | 33.5 kN |
Type & Application Notes
Tapered Roller bearings are handles combined radial and axial loads through a tapered raceway, common in wheel and gearbox hubs. The 30204 is commonly found in wheel hubs, automotive differentials, and axle gearboxes. Dynamic rating 30.8 kN sets the load a bearing can carry for a one-million-revolution rating life (L10), while the static rating 33.5 kN governs the maximum load a stationary bearing can withstand without permanent deformation.
Interchange Notes
When substituting the 30204:
- Match the boundary dimensions (20 x 47 x 15.25 mm) exactly — this is what guarantees fit.
- Match the bearing type (Tapered Roller); mixing roller and ball types changes stiffness, speed limits, and load capacity.
- Match or exceed the dynamic load rating (30.8 kN) for the intended life.
- Respect the seal/shield suffix the application requires (open, Z, 2Z, RS, or 2RS).
Frequently Asked Questions
What Timken bearing crosses to SKF 30204?
The Timken equivalent is 30204.
What FAG bearing crosses to SKF 30204?
The FAG (Schaeffler) equivalent is 30204.
What are the dimensions of the 30204 bearing?
20 x 47 x 15.25 mm (bore x OD x width).
What is the load rating of the 30204 bearing?
Dynamic 30.8 kN, static 33.5 kN.
What type of bearing is the 30204?
It is a Tapered Roller bearing.