d - 66.675 mm

D - 112.713 mm

T - 30.163 mm

B - 30.048 mm

C - 23.813 mm

a - 4.3 mm

r1 min. - 3.6 mm

r2 min. - 3.2 mm

Weight - 1,15 Kg

Basic dynamic load rating (C) - 111000 kN

Basic static load rating (C0) - 164000 kN

(Grease) Lubrication Speed - 2800 r/min

(Oil) Lubrication Speed - 4000 r/min

Calculation factor (e) - 0.40

Calculation factor (Y0) - 0.82

Calculation factor (Y1) - 1.49

• Model Number:3984/3920
• Inner Diameter：66.675mm Outer Diameter：112.713mm Width：30.163mm
• Type：Tapered Roller Bearings
• Update date：2025-12-10
• Application:Doppler,mechanical and electrical,ignition system,sucker industry,Medical equipment,machine tool spindle,laser devices,Spectral Products,reinforced machinery,Tool,fruit and vegetable processing
• Similar models:ISO 3984/3926 ISO 3984/3920 CX 3984/3925 Fersa 3984/3920 Timken 3984/3920 KOYO 3984/3925 SKF 3984/2/3920/2/Q FBJ 3984/3925 Fersa 3984/3925 Timken 3984/3920B
• BEARING POWER International Trading Co.,Ltd. specialize in 3984/3920 products，there is large inventory of NACHI 3984/3920 . We has been built up long-term cooperation with NACHI company, could make a bulk order of the 3984/3920 Which NACHI 3984/3920 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
  120057X/120112XH	57,15	112,712	73	Gamet	Tapered Roller Bearings
  22310 W33	50	110	40	MPZ	Spherical Roller Bearings
  18790/18720	50,8	85	17,462	ISO	Tapered Roller Bearings
  241/560 K30	560	920	355	ISB	Spherical Roller Bearings
  26100/26274	25,4	69,723	19,05	Timken	Tapered Roller Bearings
  54414-MP+U414	55	150	114,1	NKE	Thrust Ball Bearings
  581/572-B	80,962	139,992	36,098	Timken	Tapered Roller Bearings
  63009-2RS	45	75	23	FBJ	Deep Groove Ball Bearings
  BT1-0160	95	135	21,06	SKF	Tapered Roller Bearings
  C485416	76,2	85,725		INA	Needle Roller Bearings
  EC-6309ZZ	45	100	25	NTN	Deep Groove Ball Bearings
  K 58x63x17	58	63		NBS	Needle Roller Bearings
  L-1150	5	11	3	NMB	Deep Groove Ball Bearings
  MJ-16161	25,4	31,75	25,4	NSK	Needle Roller Bearings
  PW40720036/33CS	40	72	36	PFI	Angular Contact Ball Bearings
  MS-193/4	3.3750	7.5000	1.5625	FAG	DEEP GROOVE BALL BEARINGS
  32940XU	200	280	51	NTN	TAPERED ROLLER BEARINGS
  OPN-406080	2.5000	3.7500	5.0000	Thomson	LINEAR RECIRCULATING BALL BEARINGS
  6416	80	200	48	SKF	DEEP GROOVE BALL BEARINGS
  SN-224..22224	120	-	120	CONSOLIDATED	PILLOW BLOCKS