d - 40 mm

F - 45 mm

D - 55 mm

B - 20 mm

C - 20 mm

r min. - 0,3 mm

s - 0,5 mm

da min. - 42 mm

Da max. - 53 mm

ra max. - 0,3 mm

Weight - 0,143 Kg

Basic dynamic load rating (C) - 28 kN

Basic static load rating (C0) - 52,5 kN

(Grease) Lubrication Speed - 6 000 r/min

(Oil) Lubrication Speed - 9 000 r/min

• Model Number:NK45/20R+IR40×45×20
• Inner Diameter：40mm Outer Diameter：55mm Width：20mm
• Type：Needle Roller Bearings
• Update date：2025-12-12
• Application:electromagnetic clutch,hydraulic actuator,Body shaping,journal lathe,transistor fittings,engineering machine,aerial work platform,CNC,wheel lathe,medical equipment,vertical sawing machine
• Similar models:NSK LM4525 INA K45X53X21 NBS NAO30x45x26-ZW Timken NA3045 INA F-80045 KOYO 45BTM5220A NSK FJL-4520L IKO TAMW6545 KOYO RP455129A INA RNAO35X45X26-ZW-ASR1
• BEARING POWER International Trading Co.,Ltd. specialize in NK45/20R+IR40×45×20 products，there is large inventory of NTN NK45/20R+IR40×45×20 . We has been built up long-term cooperation with NTN company, could make a bulk order of the NK45/20R+IR40×45×20 Which NTN NK45/20R+IR40×45×20 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
  238/500	500	620	90	ISB	Spherical Roller Bearings
  469/453X	57,15	104,775	30,162	Fersa	Tapered Roller Bearings
  618/3 ZZ	3	7	3	ISO	Deep Groove Ball Bearings
  EE420793/421417	201,612	360	92,075	NSK	Cylindrical Roller Bearings
  LM119348D/LM119311+LM119311EA	95,25	136,525	57,15	Timken	Tapered Roller Bearings
  NN3010TB	50	72,5	23	NSK	Cylindrical Roller Bearings
  NKIA5904	20	37	23	INA	Complex Bearings
  NKIB 5912	60	85	34	ISO	Complex Bearings
  NNU 49/670 BK/SPW33X	670	900	230	SKF	Cylindrical Roller Bearings
  NUP 222 ECML	200	110	38	SKF	Thrust Ball Bearings
  QJ 224	120	215	40	NSK	Angular Contact Ball Bearings
  R1040	50,000	80,000	23,000	NTN	Cylindrical Roller Bearings
  R154.36				SNR	Wheel Bearings
  R4207	210,000	290,000	45,000	NTN	Cylindrical Roller Bearings
  RV588072	58	80	72	KOYO	Needle Roller Bearings
  UCTU208-600	40		49,2	FYH	Bearing Units
  UCTU212-700	60		65,1	KOYO	Bearing Units
  ZB1.20.0544.200-1SPTN	444	616	56	ISB	Thrust Ball Bearings
  H-3096HG	480	560		FAG	ADAPTERS
  202	35	15	11	NH	DEEP GROOVE BALL BEARINGS