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Inquiry	Bearing NO.	Principal dimensions （mm）					Details
		d	D	B	rmin	r1min
	2244    N244	?220	400	65	4	4
	42244    NJ244	220	400	65	4	4
	32244    NU244	220	400	65	4	4
	92244    NUP244	220	400	65	4	4
	42344    NJ344	220	460	88	5	5
	32544    NU2244	220	400	108	4	4
	42544    NJ2244	220	400	108	4	4
	3032744    NU3144	220	400	144	4	4
	32344    NU344	220	460	88	5	5
	2644E    N2344E	220	460	145	5	5
	32644E    NU2344E	220	460	145	5	5
	42148    NJ1048	240	360	56	3	3
	32848	240	390	108	3	3
	32148Q    NU1048Q1	240	360	56	3	3
	32248    NU248	240	440	72	4	4
	NU248MA	240	440	72	4	4
	92248    NUP248	240	440	72	4	4
	32348    NU348	240	440	95	5	5
	32548    NU2248	240	440	120	4	4
	42548    NJ2248	240	440	120	4	4
	42248    NJ248	240	500	72	4	4
	2348    N348	240	500	95	5	5

 

Cylindrical Roller Bearing  Inner Diameter: 50-1600 mm

Double-row Cylindrical Roller Bearing  Inner Diameter: 90-800 mm

Four-row Cylindrical Roller Bearing  Inner Diameter: 50-1030 mm

With the roller and the tracking surface in a line contact, cylindrical roller bearing has a large capacity of radial load, which suits for heavy load and impact load.

Being easy to be processed with high precision in its structure, it is suitable for high speed spinning.

 

With its Inner ring and outer ring separable, it is easy for assembly and disassembly.

Single-row Cylindrical Roller Bearing

Type NU and Type N allow axis to make axial movements in a certain range in the housing, which are most used as free-end bearings.

Type NJ and Type NF can withstand one-way axial load in a certain degree, while Type NUP and Type NH can withstand two-way axial load in a certain degree.

With its main sizes up to the standard cylindrical roller bearing, it raises the rated load through changes in the internal specifications.

Double-row Cylindrical Roller Bearing

There are 2 kinds of double-row cylindrical roller bearings: one with cylindrical bore and one with tapered bore. Bearings with tapered bore can obtain the internal clearance by adjusting the push-up distance.

Bearings with oil holes and oil grooves in the outer ring have a post positive auxiliary code —“W”in the nominal type。

With strong rigidity of load resistance, they are mostly used in machine tool spindles etc.