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NNU49/630

Double-Row Cylindrical Roller Bearings

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Parts Number
NNU49/630CC1P4 Double-Row Cylindrical Roller Bearings			Add to Compare You can use this service by registering as a member.

Product Information

Parts Number

NNU49/630CC1P4

Boundary Dimensions

	NNU: Outer ring rib type		Bearing Type
d	630	mm	Bore diameter
D	850	mm	Outside diameter
B	218	mm	Width
r(min.)	6	mm	Chamfer Dimension

Basic Load Ratings

C_r	4200	kN	Basic Dynamic Load Rating
C_0r	11400	kN	Basic Static Load Rating

Speeds

Grease	800	min^-1	Limiting Speed
Oil (Oil-air)	1000	min^-1	Limiting Speed

Dimensions

Ew	697	mm	Roller Circumscribed Circle Diameters
s	2.7	mm	Axial Displacement

Abutment and Fillet Dimensions

da(min.)	656	mm	Diameter of Shaft Abutment
d1a(min.)	674	mm	Diameter of Shaft Abutment
Da(max.)	824	mm	Diameter of Housing Abutment
ra(max.)	5	mm	Radius of Shaft or Housing Fillet

Additional information

CC1(max.)	115	μm	Clearance in Bearings with Cylindrical Bores
CC1(min.)	30	μm	Clearance in Bearings with Cylindrical Bores

Holes Dimensions

dh	12	mm	Hole Diameter
W	20	mm	Oil Groove Width
m	4		Number of Holes

Mass

328

kg

Mass(approx.)

CAD

Customer Questions

More Information

More Information
NSK Product Type2	SP_CRB_DR_NNU
NSK Product Type	Super Precision Bearing
Designations	NNU49/630

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