Fw - 40 mm

D - 47 mm

C - 20 mm

r - 1 mm

C1 - 17,3 mm

Weight - 0,07 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：2025-12-16
• Application:paper processing machine,Dental Drill etc,Machine Tool Accessories,rolling mill roll neck and slowdown device,Grinding and polishing equipment,hydraulic cylinder,instrument,turret industry,tapping machine,Safety protection,other rubber
• Similar models:KOYO MKM4020 NTN BK4020 NTN HK4020LLD AST HK4020-2RS IKO TLA4020UU AST HK4020 NSK RLM4020 IKO TAF304020/SG NBS BK4020 IKO TLA4020Z
• BEARING POWER International Trading Co.,Ltd. specialize in BK4020 products，there is large inventory of Timken BK4020 . We has been built up long-term cooperation with Timken company, could make a bulk order of the BK4020 Which Timken 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
  22316	80	170	58	ISB	Spherical Roller Bearings
  26100/26283	25,4		18,923	KOYO	Tapered Roller Bearings
  32919	95	130	23	CYSD	Tapered Roller Bearings
  B3220	50,8	60,325	31,75	KOYO	Needle Roller Bearings
  6213-2RSR	65	120	23	FAG	Deep Groove Ball Bearings
  KBK12X15X17,5	12	15	17,5	CX	Needle Roller Bearings
  MBYT20V	20	40	35,5	NMB	Plain Bearings
  NF312	60	130	31	KOYO	Cylindrical Roller Bearings
  NJ 306	30	72	19	ISB	Cylindrical Roller Bearings
  NJ338	190	400	78	KOYO	Cylindrical Roller Bearings
  NKIB 59/22	22	39	23	ISO	Complex Bearings
  UCT207	35			CRAFT	Bearing Units
  89460			48	INA	THRUST ROLLER BEARINGS
  110TAD20	110	170	234422 M.SP	Nachi	ANGULAR CONTACT THRUST BALL BEARINGS
  MUL208	40	80	18	Rollway	CYLINDRICAL ROLLER BEARINGS
  NJ2334E	170	360	120	STEYR	CYLINDRICAL ROLLER BEARINGS
  6306NR	30	72	19	SKF	DEEP GROOVE BALL BEARINGS
  6220-ZZNR	100	180	34	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  NNCF-5052V	260	400	190	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  QJ-1238	190	340	65	CONSOLIDATED	ANGULAR CONTACT BALL BEARINGS WITH SPLIT INNER RACE