d - 66,675 mm

D - 109,985 mm

T - 29,751 mm

B - 30,048 mm

C - 23,812 mm

R - 3,6 mm

r - 0,5 mm

a - -4,6 mm

Da - 104,5 mm

db - 80 mm

da - 74 mm

Db - 100 mm

Aa - 2,4 mm

Ab - 0,9 mm

Weight - 1,06 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: 3984/3921XA
• Inner Diameter：66,675mm Outer Diameter：109,985mm Width：29,751mm
• Type：Tapered Roller Bearings
• Update date：2025-12-13
• Application:electromagnetic clutch,security equipment,hydraulic cylinder,security equipment,transportation equipment,Plastic molding,Dental Drill etc,ventilation equipment,electronic materials,pneumatic,hydraulic actuator
• Similar models:Timken 3984/3920 ISO 3984/3920 ISO 3984/3926 Timken 3984/3925 Timken 3984/3920B Fersa 3984/3920 FAG K3984-3920 Fersa 3984/3925 NACHI 3984/3920 NSK 3984/3920
• BEARING POWER International Trading Co.,Ltd. specialize in 3984/3921XA products，there is large inventory of Timken 3984/3921XA . We has been built up long-term cooperation with Timken company, could make a bulk order of the 3984/3921XA Which Timken 3984/3921XA 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
  1309-K-TVH-C3	45	100	25	FAG	Self-Aligning Ball Bearings
  24038-E1-K30 + AH24038	180	290	100	FAG	Spherical Roller Bearings
  32034XU	170	260	57	NTN	Tapered Roller Bearings
  46328A	140	225	85	KOYO	Tapered Roller Bearings
  AST50 58IB60	92,075			AST	Plain Bearings
  AXK 100135	100	135	4	NBS	Needle Roller Bearings
  BXRE08-2HRS	8	22	7	INA	Needle Roller Bearings
  EC-6208LLU	40	80	18	NTN	Deep Groove Ball Bearings
  HJ-223020	34,925	47,625	31,75	Timken	Needle Roller Bearings
  HM813841/HM813810	60,325	127	36,512	Timken	Tapered Roller Bearings
  NNU 4932 K	160	220	60	NSK	Cylindrical Roller Bearings
  NU 1060	300	460	74	NACHI	Cylindrical Roller Bearings
  RNAO35x45x17	35	45	17	SKF	Needle Roller Bearings
  YSP 207-104 SB-2F	72	31,75	39,5	SKF	Deep Groove Ball Bearings
  MW-51/2				INA	THRUST BALL BEARINGS
  7032CDHCP4A	160	240	38	SKF	ANGULAR CONTACT BALL BEARINGS
  NBC10707	4.2500	4.8750	.3125	NSK	DEEP GROOVE BALL BEARINGS
  SNZ-214..1214	70	60	80	CONSOLIDATED	PILLOW BLOCKS
  SNZ-307..1307	35	30	60	CONSOLIDATED	PILLOW BLOCKS
  AHX-3222x105	110	105		CONSOLIDATED	WITHDRAWAL SLEEVES