d - 66,675 mm

D - 112,712 mm

T - 30,162 mm

B - 30,048 mm

C - 23,812 mm

ra1 max. - 3,2 mm

a - 25,5 mm

r min. - 3,5 mm

r1 min. - 3,2 mm

Da - 99 mm

db - 74 mm

ra max. - 3,5 mm

da - 80 mm

Db - 106 mm

Weight - 1,166 Kg

Basic dynamic load rating (C) - 120 kN

Basic static load rating (C0) - 173 kN

(Grease) Lubrication Speed - 3200 r/min

(Oil) Lubrication Speed - 4300 r/min

Calculation factor (e) - 0,4

Calculation factor (Y0) - 0,82

Calculation factor (Y1) - 1,5

• Model Number: 3984/3920
• Inner Diameter：66,675mm Outer Diameter：112,712mm Width：30,162mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:metallurgy,diving equipment,Leather Products,Liposuction device,wall industry,orthodontic material,power tools,suction nozzle,Industrial,universal category,outdoor equipment
• Similar models:ISO 3984/3920 ISO 3984/3926 Timken 3984/3920 KBC 3984/3920 ISO 3984/3925 FAG K3984-3920 SKF 3984/2/3920/2/Q Timken 3984/3925 CX 3984/3920 Timken 3984/3927X
• BEARING POWER International Trading Co.,Ltd. specialize in 3984/3920 products，there is large inventory of NSK 3984/3920 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 3984/3920 Which NSK 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
  231SM320-MA	320	580	190	FAG	Spherical Roller Bearings
  31326-X	130	280	72	FAG	Tapered Roller Bearings
  5211ZZ	55	100	33,3	CYSD	Angular Contact Ball Bearings
  AST090 21060	210	215		AST	Plain Bearings
  B32-10	32	72	19	NSK	Deep Groove Ball Bearings
  51104	20	35	10	ZEN	Thrust Ball Bearings
  51309	45	85	28	ISB	Thrust Ball Bearings
  6315	75	160	37	NKE	Deep Groove Ball Bearings
  7236 BDB	180	320	104	ISO	Angular Contact Ball Bearings
  GTR 203320	20	33	20	IKO	Needle Roller Bearings
  NJ1064	320	480	74	CX	Cylindrical Roller Bearings
  NN3007	35	62	20	ISO	Cylindrical Roller Bearings
  PHE30	30			INA	Bearing Units
  SL182915	75	105	19	INA	Cylindrical Roller Bearings
  UCP316	80		86	NACHI	Bearing Units
  NTB1226	12	26	2	IKO	THRUST NEEDLE BEARINGS
  94518	1.0000	1.5000	1.1250	Hyatt	JOURNAL ROLLER ASSEMBLIES
  CRHSB-8-1	.2500	.5000	.3750	Torrington	NEEDLE BEARINGS
  202P	15	35	11	NH	DEEP GROOVE BALL BEARINGS
  98210	50	90	11	CONSOLIDATED	DEEP GROOVE BALL BEARINGS