d - 41,275 mm

D - 85,725 mm

T - 30,162 mm

B - 30,162 mm

C - 23,812 mm

ra1 max. - 3,3 mm

a - 21,8 mm

r min. - 3,5 mm

r1 min. - 3,3 mm

Da - 73 mm

db - 50 mm

ra max. - 3,5 mm

da - 57 mm

Db - 81 mm

Weight - 0,791 Kg

Basic dynamic load rating (C) - 91 kN

Basic static load rating (C0) - 115 kN

(Grease) Lubrication Speed - 4300 r/min

(Oil) Lubrication Speed - 6000 r/min

Calculation factor (e) - 0,4

Calculation factor (Y0) - 0,82

Calculation factor (Y1) - 1,5

• Model Number:3877/3820
• Inner Diameter：41,275mm Outer Diameter：85,725mm Width：30,162mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:milling head plug,tapered grinder,E Beauty,experimental equipment,tray industry,marine analysis and testing equipment,Automobile,ventilator anesthesia machine etc,coal,gas turbine,Film machine
• Similar models:NTN 4T-3877/3820 Timken 3877/3820 NSK 3877/3820 Timken 3877A/3820 CX 3877/3820 CX 3877/3821 ISO 3877/3821 KOYO 3877A/3821 Timken 3877/3820B KOYO 3877/3821
• BEARING POWER International Trading Co.,Ltd. specialize in 3877/3820 products，there is large inventory of NSK 3877/3820 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 3877/3820 Which NSK 3877/3820 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
  123075/123120XH	75	120,65	64	Gamet	Tapered Roller Bearings
  24134-E1-2VSR-H40	170	280	109	FAG	Spherical Roller Bearings
  34274/34478D+X1S-34274	69,952	121,442	52,39	Timken	Tapered Roller Bearings
  52226-MP	110	190	80	NKE	Thrust Ball Bearings
  6200/HR11TN	30	10	9	SKF	Deep Groove Ball Bearings
  7010 CD/P4A	80	50	16	SKF	Angular Contact Ball Bearings
  AC-6203	17	40	12	NTN	Deep Groove Ball Bearings
  BT4B 329004 G/HA1VA901	334,962	409,575	334,962	SKF	Tapered Roller Bearings
  N 240	200	316	58	NSK	Cylindrical Roller Bearings
  NAO80X110X30	80	98		Timken	Needle Roller Bearings
  NP1956	280	380	46	CX	Cylindrical Roller Bearings
  NU328-E-TVP2	140	300	62	FAG	Cylindrical Roller Bearings
  PHU594505	26	152	98,5	PFI	Angular Contact Ball Bearings
  ZARF3590TN	35	90		INA	NEEDLE BEARINGS
  CSCD045	4.5000	5.5000	.5000	INA	DEEP GROOVE BALL BEARINGS
  32214J2	70	125	31	SKF	TAPERED ROLLER BEARINGS
  STO50	50	90	20	Torrington	NEEDLE BEARINGS
  93644	1.1250	1.5000	2.7500	RBC	JOURNAL ROLLER ASSEMBLIES
  6250-R	250	460	76	CONSOLIDATED	ANGULAR CONTACT BALL BEARINGS
  SN-308..20308	40	-	60	CONSOLIDATED	PILLOW BLOCKS