Quick Summary
The sourcing map ACB4052 is a bicycle headset bearing with a 40 x 52 x 7 mm size. It is described as a sealed bearing on both sides and as a chrome steel bearing for bicycle headset use.
For shoppers comparing this type of part, the key checks are the exact dimensions, the bearing type and whether the headset fit matches the bicycle you want to service.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Model | ACB4052, which helps identify the exact bearing variant. |
| Product type | Bicycle headset bearing for headset use. |
| Size | 40 x 52 x 7 mm, so the dimensions need to match the headset specification. |
| Construction | Chrome steel bearing. |
| Sealing | Sealed on both sides. |
What to Compare Before Buying
- Dimensions: Check the 40 x 52 x 7 mm size against the headset requirement for your bicycle.
- Bearing type: This is a headset bearing, so compare it with the exact part you are replacing.
- Sealing: Both sides are sealed, which is a useful check if you want the same sealed configuration.
- Fit: Confirm the bearing matches the headset arrangement before choosing an offer.
Before You Decide
Confirm the 40 x 52 x 7 mm size, the ACB4052 model and the headset fit before choosing an offer. If your bicycle uses a different bearing arrangement, a different part will be needed.






