BK 4020
📏 40 × 47 × 20 mm
Product Photo
NTNNeedle Roller Bearings
NTN BK4020
Needle Roller Bearings · 40 × 47 × 20 mm
40Bore d (mm)
47Outer D (mm)
20Width B (mm)
✓323,474 SKUs in the online catalogue
✓OEM & custom bearings welcome
✓Reply within 30 minutes (working days)
✓Global shipping from Wuxi, China
Wuxi Andge Bearing Co., Ltd.Professional bearing supplier · Wuxi, Jiangsu, China
⚡ Reply ≤ 30 min
The NTN BK4020 is a Needle Roller Bearings, with a bore diameter (d) of 40 mm, an outer diameter (D) of 47 mm and a width (B) of 20 mm. Supplied by Wuxi Andge Bearing Co., Ltd. (AndgeBearing), a bearing manufacturer and exporter based in Wuxi, Jiangsu, China — OEM and custom bearings welcome, RFQ replied within 30 minutes on working days.
Full Specifications
| Brand | NTN |
|---|---|
| Category | Needle Roller Bearings |
| Type | Needle Roller Bearings |
| Dimensions (d × D × B) | d 40 mm × D 47 mm × B 20 mm |
| Catalogue Ref. | foIJ8Tdfey |
| C | Series 20 mm |
| C1 | 2.7 |
| COR | 52500 N |
| CORF | 5350 Static load |
| CR | 25900 N |
| CRF | 2650 Dynamic load |
| FW | 40 mm |
| LSG | 4000 r/min |
| LSO | 6000 r/min |
| MASS | 0.064 Kg |
| ORDER | BK4020 Model |
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