HK4012 Bearing
Drawn cup needle roller bearing (HK)
- Shaft dia. Fw40 mm
- Outer dia. D47 mm
- Width C12 mm
- Weight≈ 0.02 kg
Very tight spaces: gearboxes, steering and pedal mechanisms; the shaft itself acts as the raceway.
Technical data
| Bearing designation | HK4012 |
|---|---|
| Type | Drawn cup needle roller bearing (HK) |
| Shaft dia. Fw | 40 mm |
| Outer dia. D | 47 mm |
| Width C | 12 mm |
| Weight | ≈ 0.02 kg |
Designation meaning and notes
- Shaft diameter (raceway) Fw = 40 mm; no inner ring – the shaft must be hardened.
Dimensions are standard catalogue values; the weight is an approximate calculation. Please confirm before ordering.
Common suffixes for HK4012
| HK4012-2RS | Rubber seals on both sides (sealed), greased |
|---|---|
| HK4012-RS | Rubber seal on one side |
Click a designation to open it in the bearing finder. Suffix usage can differ slightly between brands.
Matching seal (radial shaft seal)
40 × 47 mm
Needle roller bearings usually take a thin (type G) shaft seal: inner diameter 40 mm, outer diameter 47 mm. We'll help you choose the width to fit the housing.
Quote for bearing and seal