d - 57,15 mm

D - 112,712 mm

T - 30,162 mm

B - 30,048 mm

C - 23,812 mm

ra1 max. - 3,3 mm

a - 4,5 mm

Da - 99 mm

db - 66 mm

ra max. - 3,5 mm

da - 72 mm

Db - 106 mm

Weight - 1,4 Kg

Basic dynamic load rating (C) - 119 kN

Basic static load rating (C0) - 174 kN

(Grease) Lubrication Speed - 3 200 r/min

(Oil) Lubrication Speed - 4 300 r/min

Calculation factor (e) - 0,4

Calculation factor (Y0) - 0,82

Calculation factor (Y2) - 1,49

• Model Number: 4T-3979/3920
• Inner Diameter：57,15mm Outer Diameter：112,712mm Width：30,162mm
• Type：Tapered Roller Bearings
• Update date：2025-12-13
• Application:Optical Instruments,Sensors,DC generators,Machine Tool Accessories,mobile toilet,Security Equipment,Insect Count,coal mill,Automobile,air conditioning tools,sucker industry
• Similar models:KBC 3979/3920 Fersa 3979/3920 ISO 3979/3920 FBJ 3979/3920 KOYO 3979/3920 CX 3979/3920 Timken 3979/3920 NTN 4T-3979/3920 Timken 3979/3920-B Timken NP113979/NP693852
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-3979/3920 products，there is large inventory of NTN 4T-3979/3920 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-3979/3920 Which NTN 4T-3979/3920 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
  51124	120	155	25	FAG	Thrust Ball Bearings
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  7019 CD/HCP4A	145	95	24	SKF	Angular Contact Ball Bearings
  EC-6003ZZ	17	35	10	NTN	Deep Groove Ball Bearings
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  LME5	5	12	14,5	Samick	Linear Bearings
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  N1014RXHTPKR	70	100	20	NSK	Cylindrical Roller Bearings
  NUP3214	70	125	39,7	ISO	Cylindrical Roller Bearings
  RNA6902TT	20	28	23	NSK	Needle Roller Bearings
  RNA 6917 ZW	100	120	63	NBS	Needle Roller Bearings
  RNA5905	30	42	23	CX	Needle Roller Bearings
  SL045052-PP	260	400	190	NBS	Cylindrical Roller Bearings
  BR-7720	.4375	1.3750	.4375	FED	DEEP GROOVE BALL BEARINGS
  GYE30KRRB	30	2.4400	.7870	FAF	PILLOW BLOCKS
  KML24			20	FAG	LOCKNUTS
  F3-8	3	8	3.5	ISC	THRUST BALL BEARINGS
  WCT-45B	10.9680	11.5000		Rollway	THRUST ROLLER BEARINGS
  R-20FF	1.2500	2.2500	.5000	MRC	DEEP GROOVE BALL BEARINGS