d - 60 mm

D - 112,712 mm

T - 30,162 mm

B - 30,048 mm

C - 23,812 mm

R - 3,6 mm

r - 3,3 mm

a - -4,6 mm

Da - 106 mm

db - 74 mm

da - 68 mm

Db - 99 mm

Aa - 2,2 mm

Ab - 1,1 mm

Weight - 1,3 Kg

Basic static load rating (C0) - 191 kN

Factor (G1) - 75,2

Factor (G2) - 21,3

Factor (Cg) - 0,0297

Factor (K) - 1,45

Basic dynamic load rating (C90) - 33,3

Basic dynamic load rating (Ca90) - 22,9

Basic dynamic load rating (C1) - 129 kN

Calculation factor (e) - 0,4

Calculation factor (Y) - 1,49

• Model Number: 3977/3920
• Inner Diameter：60mm Outer Diameter：112,712mm Width：30,162mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:Sensors,tray industry,vertical sawing machine,sawing machine,Material handling equipment,aerial work equipment,gear grinding machine,Broadcasting System,diving equipment,Forming mold,Pneumatic Actuator
• Similar models:KOYO 3977/3925 Timken 3977/3920 ISO 3977/3920 Timken 3977/3925 Timken 3977X/3921XA Timken 3977/3920-B CX 3977/3920 Timken 3977X/3920
• BEARING POWER International Trading Co.,Ltd. specialize in 3977/3920 products，there is large inventory of Timken 3977/3920 . We has been built up long-term cooperation with Timken company, could make a bulk order of the 3977/3920 Which Timken 3977/3920 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.

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  GEC 560 TXA-2RS	750	560	258	SKF	Plain Bearings
  NA209-26	41,275	85	42,8	KOYO	Deep Groove Ball Bearings
  NH2256	280	500	130	ISO	Cylindrical Roller Bearings
  NU 2344 ECMA	460	220	145	SKF	Thrust Ball Bearings
  RNU5619	280,000	500,000	165,100	NTN	Cylindrical Roller Bearings
  SA 50 C 2RS	50	75	35	ISB	Plain Bearings
  SCH1010	15,875	22,225	15,875	AST	Needle Roller Bearings
  SR3	4,763	12,7	3,967	ZEN	Deep Groove Ball Bearings
  STO 17 X	17	40	15,8	SKF	Cylindrical Roller Bearings
  AH312	60	55		FAG	WITHDRAWAL SLEEVES
  54305U				FAG	THRUST BALL BEARINGS WITH SPHERICAL SEATING RINGS
  B33	3.9687	2.5000		INA	THRUST BALL BEARINGS
  HYDNUT130			44	FAG	HYDRAULIC NUTS
  HR32968J	340	460	76	NSK	TAPERED ROLLER BEARINGS
  MB25-ESS	25	42	29	RBC	SPHERICAL PLAIN BEARINGS
  33113	65	110	34	SNR	TAPERED ROLLER BEARINGS
  NBX13912	5.5000	6.5000	.5000	NSK	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  TWC-812	.5000	.7500		CONSOLIDATED	THRUST NEEDLE BEARINGS