d - 60 mm

T - 30,162 mm

B - 30,048 mm

C - 23,812 mm

a - 25,9 mm

r min. - 3,6 mm

r1 min. - 0,8 mm

Da - 101 mm

db - 68 mm

da - 74 mm

Db - 106 mm

Basic dynamic load rating (C) - 111 kN

Basic static load rating (C0) - 164 kN

Calculation factor (e) - 0,4

Calculation factor (Y0) - 0,82

Calculation factor (Y1) - 1,49

• Model Number:3977/3925
• Inner Diameter：60mm Outer Diameter：mm Width：30,048mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:engine,training beds etc,,Small air generators,Spectrum Products,non-ferrous metal alloy,electrostatic protection,electric pump,Perfusion device,marine analysis and testing equipment,sample cup
• Similar models:Timken 3977/3920 Timken 3977/3925 Timken 3977X/3920 CX 3977/3920 Timken 3977X/3921XA Timken 3977/3920-B KOYO 3977/3925 ISO 3977/3920
• BEARING POWER International Trading Co.,Ltd. specialize in 3977/3925 products，there is large inventory of KOYO 3977/3925 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 3977/3925 Which KOYO 3977/3925 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
  22208 K	40	80	23	ISB	Spherical Roller Bearings
  24056RHA	280	420	140	KOYO	Spherical Roller Bearings
  32015	75	115	25	CYSD	Tapered Roller Bearings
  6016EE	80,000	125,000	22,000	SNR	Deep Groove Ball Bearings
  625924	120	170	124	NTN	Tapered Roller Bearings
  BC4-8000/HA1	600	474,6	368	SKF	Cylindrical Roller Bearings
  DAC3665W	36	65	37	KOYO	Angular Contact Ball Bearings
  GE 10 PW	10	22	14	INA	Plain Bearings
  GEH630HC	630	900	450	LS	Plain Bearings
  GEZH108ES-2RS	38,1	71,438	40,13	SKF	Plain Bearings
  JM207049A/JM207010	55	95	29	Timken	Tapered Roller Bearings
  NA 499	9	20	11	IKO	Needle Roller Bearings
  WJC-091108	14,288	17,462		NSK	Needle Roller Bearings
  UCFS312	60			FYH	Bearing Units
  9120K	100	150	24	FAF	DEEP GROOVE BALL BEARINGS
  120HCUL	100	150	24	Barden	ANGULAR CONTACT BALL BEARINGS
  SN216with2216	80	-	90	SKF	PILLOW BLOCKS
  5310-CZZG	50	110	44.4	MRC	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  MB90-SA	90	140	30	RBC	SPHERICAL PLAIN BEARINGS
  61909	45	68	12	SKF	DEEP GROOVE BALL BEARINGS