NJ244ECMA Cylindrical Roller Bearings

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NJ244ECMA

Bore Diameter:220 mm

Outside Diameter:400 mm

Width:65 mm

The NJ244ECMA bearing is a cylindrical roller bearings with an inner diameter of 220 mm , an outer diameter of 400 mm, a width of 65 mm. It typically uses P0,P6,P4,P2 grade precision tolerances and open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

220 mm

Outside Diameter:

400 mm

Thickness:

65 mm

Specifications:

Structure:

roller bearings

Brand:

BOBO

Precision Rating:

P0,P6,P4,P2

Bearing Material:

GCr15

Seals Type:

open

Transaction Information:

Detailed description

1.NJ244ECMA cylindrical roller bearings

2.size:220*400*65mm

3.material:GCr15

4.cage :brass cage

5.type:NU,N,NJ,NUP series

6.precision class:P0,P6,P5,P4,P2

7.features

1. The rollers and raceway for the line contact or offline access, radial load capacity is large, suitable for under heavy load and shock load.
2. The friction coefficient is small, suitable for high speed, the limit speed close to the deep groove ball bearings.
3. N and NU type axial movement, can adapt shaft caused by thermal expansion or installation error and shell the change of relative position, can be used for free end bearing.
4. On the shaft or hole processing the demand is higher, bearing outer axis relative deflection after installation to kept under strict control, so as not to cause contact stress concentration.
5. Inner ring or outer ring separable, easy to install and disassemble.

8.application:Large and medium-sized motor, locomotives, spindle, internal combustion engines, generators, gas turbines, reducer, rolling mill, vibrating screen and lifting transportation machinery, etc

9.technical models

Model	size			Basic Load Rating			weight
	d	D	B	Cor	Cr	limit speed	weight
	mm			KN		r/min	kg
NU1040MA	200	310	51	570	380	3000	14.5
NU240ECMA	200	360	58	1020	850	2800	28.5
NJ240ECMA	200	360	58	1020	850	2800	29
NUP240ECMA	200	360	58	1020	850	2800	29.5
NU2240ECMA	200	360	98	1800	1370	2800	46
NU340ECMA	200	420	80	1630	1320	2400	56
NU2340ECMA	200	420	138	2800	1980	2400	97
NJ2340ECMA	200	420	138	2800	1980	2400	98
NU1044MA	220	340	56	735	495	2800	19
NU244ECMA	220	400	65	1290	1060	2400	38.5
NJ244ECMA	220	400	65	1290	1060	2400	39
NUP244ECMA	220	400	65	1290	1060	2400	39.5
NU2244ECMA	220	400	108	2280	1570	2400	62.5
NU344M	220	460	88	1630	1210	1700	72.5
NJ344M	220	460	88	1630	1210	1700	73.5
NU2344ECMA	220	460	145	3450	2380	2200	120
NU1048MA	240	360	56	800	523	2600	20
NU248MA	240	440	72	1370	952	2200	51.5
NJ248MA	240	440	72	1370	952	2200	52.5
NUP248MA	240	440	72	1370	952	2200	53.5
NU2248MA	240	440	120	2360	1450	2200	84
NJ2248MA	240	440	120	2360	1450	2200	85
NU348M	240	500	95	2000	1450	1600	94.5
NJ348MA	240	500	95	2000	1450	2000	98.5
NU2348ECMA	240	500	155	3650	2600	2000	155

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