Fw - 40 mm

D - 47 mm

C - 20 mm

r5 min. - 1 mm

C2 - 17.3 mm

Weight - 0.070 Kg

Basic dynamic load rating (C) - 25.1 kN

Basic static load rating (C0) - 50.4 kN

(Grease) Lubrication Speed - 5200 r/min

(Oil) Lubrication Speed - 7900 r/min

• Model Number:BK4020
• Inner Diameter：40mm Outer Diameter：47mm Width：20mm
• Type：Needle Roller Bearings
• Update date：2025-12-30
• Application:chuck industry,Cylinder Special,Processing machinery,storage and transportation equipment,Machine tool accessories,Broadcasting System,Blood coagulation reagent,Doppler,Plastic Equipment,Insect Capture,stamping die and its equipment
• Similar models:KOYO VE324020SB1 KOYO 32YM4020P INA BK4020 NSK MF-4020 KOYO BK4020 IKO TLA4020Z SKF HN4020 NSK F-4020 AST HK4020-2RS NSK FWF-324020
• BEARING POWER International Trading Co.,Ltd. specialize in BK4020 products，there is large inventory of KOYO BK4020 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the BK4020 Which KOYO BK4020 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  33206	30	62	25	FBJ	Tapered Roller Bearings
  45360	300	500	160	KOYO	Tapered Roller Bearings
  5216N	80	140	44.4	NACHI	Angular Contact Ball Bearings
  69/500	500	670	78	NTN	Deep Groove Ball Bearings
  7412B	60	150	35	KOYO	Angular Contact Ball Bearings
  7907 C	35	55	10	NSK	Angular Contact Ball Bearings
  81164	320	400		CX	Thrust Roller Bearings
  AR 16 75 135	75	135	16	KOYO	Needle Roller Bearings
  EB2.28.1215.200-1SPPN	1095	1380	108	ISB	Thrust Ball Bearings
  NA2045	45	72	22	Timken	Needle Roller Bearings
  NJ 2305	25	62	24	ISB	Cylindrical Roller Bearings
  UCT310	50			FYH	Bearing Units
  52202				FAG	THRUST BALL BEARINGS
  RSL185010	50	2.8480	40	INA	CYLINDRICAL ROLLER BEARING
  DLR80				RIV	THRUST BALL BEARINGS WITH SPHERICAL SEATING RINGS
  452338CACM2/W502	190	400	132	SKF (Old No.)	SPHERICAL ROLLER BEARINGS
  3L40	200	310	51	New Departure	DEEP GROOVE BALL BEARINGS
  105RU33	105	225	3.4375	Torrington	CYLINDRICAL ROLLER BEARINGS
  RHNA303716	37		16	SKF (Old No.)	NEEDLE BEARINGS
  SS678	8	12	2.5	CONSOLIDATED	DEEP GROOVE BALL BEARINGS