d - 41,275 mm

D - 85,725 mm

T - 30,162 mm

B - 30,162 mm

C - 23,812 mm

a - 22,9 mm

r min. - 3,6 mm

r2 min. - 1,2 mm

da min. - 57 mm

Da - 75 mm

db min - 50,3 mm

ra max. - 3,6 mm

rb max. - 1,2 mm

Db - 81 mm

Weight - 0,83 Kg

Basic dynamic load rating (C) - 108 kN

Basic static load rating (C0) - 136 kN

(Grease) Lubrication Speed - 4800 r/min

(Oil) Lubrication Speed - 6400 r/min

Calculation factor (e) - 0,4

Calculation factor (Y0) - 0,82

Calculation factor (Y1) - 1,49

• Model Number:3877/3821
• Inner Diameter：41,275mm Outer Diameter：85,725mm Width：30,162mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:packaging materials,Sensors,suction nozzle,drawing die,air conditioning tools,chamfering machine etc,water protection,scientific instruments,food packaging,Gripper Swing,hydraulic actuator
• Similar models:KOYO 3877A/3821 Timken 3877/3821 CX 3877/3820 KOYO 3877/3821 Timken 3877A/3820 Timken 3877/3820B NTN 4T-3877/3820 CX 3877/3821 NSK 3877/3820 Fersa 3877/3820
• BEARING POWER International Trading Co.,Ltd. specialize in 3877/3821 products，there is large inventory of KOYO 3877/3821 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 3877/3821 Which KOYO 3877/3821 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
  294/600 M	600	1030		ISO	Thrust Roller Bearings
  3476/3420	31.75	79,375	29,37	FBJ	Tapered Roller Bearings
  4T-460/453X	44,45	104,775	30,162	NTN	Tapered Roller Bearings
  4T-5583/5535	60,325	122,238	43,658	NTN	Tapered Roller Bearings
  55176C/55443	44,45	112,712	30,162	Timken	Tapered Roller Bearings
  6208 2RD C3	40	80	18	KOYO	Deep Groove Ball Bearings
  624	4	13	5	ZEN	Deep Groove Ball Bearings
  N 217 ECP	150	85	28	SKF	Thrust Ball Bearings
  N313-E-TVP2	65	140	33	FAG	Cylindrical Roller Bearings
  NUP420	100	250	58	KOYO	Cylindrical Roller Bearings
  SFR2A	3,175	12,7	4,366	ZEN	Deep Groove Ball Bearings
  SL04150-PP	150	210	80	NBS	Cylindrical Roller Bearings
  TASE35-N	35			INA	Bearing Units
  UCFCX15	75			ISO	Bearing Units
  UCFL311	55			CX	Bearing Units
  UKFL310+H2310	45			NACHI	Bearing Units
  AHX312	60	55		FAG	WITHDRAWAL SLEEVES
  6022NR	110	170	28	STEYR	DEEP GROOVE BALL BEARINGS
  NJ-2332E	160	340	114	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  D-33	3.9687	2.5000		CONSOLIDATED	THRUST BALL BEARINGS