d - 66,675 mm

D - 112,712 mm

D1 - 117,4 mm

T1 - 11,112 mm

B - 30,048 mm

C - 23,812 mm

R - 3,6 mm

r - 3,3 mm

a - -4,6 mm

D1 - 117,373 mm

Da - 99 mm

db - 80 mm

C2 - 4,762 mm

da - 74 mm

Weight - 1,18 Kg

Basic dynamic load rating (C) - 191 kN

Basic static load rating (C0) - 191 kN

Limiting speed - 4600 r/min

Factor (G1) - 75,2

Factor (G2) - 21,3

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:3984/3920B
• Inner Diameter：66,675mm Outer Diameter：117,4mm Width：mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:Automation,wheel lathe,Internal thread type,Spectrum Products,bio-chemical,motorcycle,historical instruments,ventilation heating equipment,Broadcasting System,floor industry,Seals
• Similar models:Timken 3984/3927X FBJ 3984/3925 NSK 3984/3920 Timken 3984/3926 KOYO 3984/3925 FBJ 3984/3920 SKF 3984/2/3920/2/Q CX 3984/3920 Fersa 3984/3920 Fersa 3984/3925
• BEARING POWER International Trading Co.,Ltd. specialize in 3984/3920B products，there is large inventory of Timken 3984/3920B . We has been built up long-term cooperation with Timken company, could make a bulk order of the 3984/3920B Which Timken 3984/3920B 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
  1988/1922	28,575	57,15	19,84502	AST	Tapered Roller Bearings
  260RIN802	660,4	903		Timken	Cylindrical Roller Bearings
  54217	85	125	59.2	NACHI	Thrust Ball Bearings
  6017-2Z	130	85	22	SKF	Deep Groove Ball Bearings
  63/32-2NSE	32	75	20	NACHI	Deep Groove Ball Bearings
  6820ZZ	100	125	13	NACHI	Deep Groove Ball Bearings
  71834 ATBP4	170	215	22	CX	Angular Contact Ball Bearings
  7224BP5	120	215	40	NTN	Angular Contact Ball Bearings
  7303BDB	17	47	14	CYSD	Angular Contact Ball Bearings
  B-2820	44,45	53,975	31,75	Timken	Needle Roller Bearings
  DCL2620	41,275	50,8	31,75	NTN	Needle Roller Bearings
  F623	3	10	4	ISO	Deep Groove Ball Bearings
  M6101	9.525	14.288	15.880	KOYO	Needle Roller Bearings
  NU1984	420,000	560,000	65,000	NTN	Cylindrical Roller Bearings
  PCM 300305100 E	300	305	100	SKF	Plain Bearings
  S71907 CB/P4A	55	35	10	SKF	Angular Contact Ball Bearings
  NX7Z	14	7		INA	NEEDLE BEARINGS
  W61901-2Z	12	24	6	SKF	DEEP GROOVE BALL BEARINGS
  B7048C.T.P4S	240	360	56	FAG	ANGULAR CONTACT BALL BEARINGS
  NJ2304E	20	52	21	STEYR	CYLINDRICAL ROLLER BEARINGS