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NN3956MB

Double-Row Cylindrical Roller Bearings

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Parts Number
NN3956MBE44CC1P5 Double-Row Cylindrical Roller Bearings			Add to Compare You can use this service by registering as a member.

Product Information

Parts Number

NN3956MBE44CC1P5

Boundary Dimensions

	NN: Inner ring rib type		Bearing Type
d	280	mm	Bore diameter
D	380	mm	Outside diameter
B	75	mm	Width
r(min.)	2.1	mm	Chamfer Dimension

Basic Load Ratings

C_r	695	kN	Basic Dynamic Load Rating
C_0r	1460	kN	Basic Static Load Rating

Speeds

Grease	2000	min^-1	Limiting Speed
Oil (Oil-air)	2500	min^-1	Limiting Speed

Dimensions

Ew	355	mm	Roller Circumscribed Circle Diameters
s	1.1	mm	Axial Displacement

Abutment and Fillet Dimensions

da(min.)	291	mm	Diameter of Shaft Abutment
d1a(min.)	295	mm	Diameter of Shaft Abutment
Da(min.)	358	mm	Diameter of Housing Abutment
Da(max.)	369	mm	Diameter of Housing Abutment
ra(max.)	2	mm	Radius of Shaft or Housing Fillet

Additional information

CC1(max.)	55	μm	Clearance in Bearings with Cylindrical Bores
CC1(min.)	20	μm	Clearance in Bearings with Cylindrical Bores
	75	g/brg	Recommended Grease Quantities

Holes Dimensions

dh	5	mm	Hole Diameter
W	9	mm	Oil Groove Width
m	4		Number of Holes

Mass

22.8

kg

Mass(approx.)

Drawing for Reference

Designations	Basic Load Ratings		Radial Internal Clearance			Accuracy	Limiting Speeds		Mass
Designations	C_r	C_0r		min	max	Accuracy	Grease (min^-1)	Oil (Oil-air) (min^-1)	(kg)
NN3956MBE44CC1P5	695	1460				P5: ISO Class 5	2000	2500	22.8

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CAD

Customer Questions

More Information

More Information
NSK Product Type2	SP_CRB_DR_NN39
NSK Product Type	Super Precision Bearing
Designations	NN3956MB

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