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NNU4952MB

Double-Row Cylindrical Roller Bearings

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Parts Number
NNU4952MBE44CC1P5 Double-Row Cylindrical Roller Bearings			Add to Compare You can use this service by registering as a member.

Product Information

Parts Number

NNU4952MBE44CC1P5

Boundary Dimensions

	NNU: Outer ring rib type		Bearing Type
d	260	mm	Bore diameter
D	360	mm	Outside diameter
B	100	mm	Width
r(min.)	2.1	mm	Chamfer Dimension

Basic Load Ratings

C_r	1070	kN	Basic Dynamic Load Rating
C_0r	2100	kN	Basic Static Load Rating

Speeds

Grease	2100	min^-1	Limiting Speed
Oil (Oil-air)	2600	min^-1	Limiting Speed

Dimensions

Ew	289	mm	Roller Circumscribed Circle Diameters
s	2.4	mm	Axial Displacement

Abutment and Fillet Dimensions

da(min.)	271	mm	Diameter of Shaft Abutment
d1a(min.)	275	mm	Diameter of Shaft Abutment
Da(max.)	349	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
	88	g/brg	Recommended Grease Quantities

Holes Dimensions

dh	6	mm	Hole Diameter
W	12	mm	Oil Groove Width
m	4		Number of Holes

Mass

28.3

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)
NNU4952MBE44CC1P5	1070	2100				P5: ISO Class 5	2100	2600	28.3

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CAD

Customer Questions

More Information

More Information
NSK Product Type2	SP_CRB_DR_NNU
NSK Product Type	Super Precision Bearing
Designations	NNU4952MB

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