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：2025-12-12
• Application:Gripper Swing,gas turbine,Performance test,Safety protection,engineering machinery,other CNC,Rolling mill gear box,medical equipment,bathroom facilities,centrifugal pump,hydraulic pressure gauge
• Similar models:Timken 3877/3821 KOYO 3877/3821 CX 3877/3821 Timken 3877/3820B NSK 3877/3820 Timken 3877A/3820 ISO 3877/3821 KOYO 3877A/3821 Timken 3877/3820 NTN 4T-3877/3820
• 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.

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  KK40x45x30	40	45	30	ISO	Needle Roller Bearings
  LBCR 16 A	16	26	36	SKF	Linear Bearings
  M-16101	25,4	31,75	15,88	Timken	Needle Roller Bearings
  MR 148	8	14	3,5	NSK	Deep Groove Ball Bearings
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  NNCF 5030 CV	225	150	100	SKF	Cylindrical Roller Bearings
  SF686-2Z	6	13	5	ZEN	Deep Groove Ball Bearings
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  NUTR2562	25	62	25	SKF	NEEDLE BEARINGS
  248/800M	800	980	180	CONSOLIDATED	SPHERICAL ROLLER BEARINGS
  T-757				CONSOLIDATED	THRUST ROLLER BEARINGS