Home > Industrial Equipment & Components > Bearing > Cylindrical Roller Bearing > NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA, Cylindrical Roller Bearings

NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA, Cylindrical Roller Bearings

NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA, Cylindrical Roller Bearings thumbnail-1
NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA, Cylindrical Roller Bearings thumbnail-2
NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA, Cylindrical Roller Bearings thumbnail-3
NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA, Cylindrical Roller Bearings photo-1
NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA, Cylindrical Roller Bearings photo-2
NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA, Cylindrical Roller Bearings photo-3
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Brand Name:
HPC or Natural or OEM
Place of Origin:
China
Model Number:
NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA
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Brand Name HPC or Natural or OEM
Place of Origin China
Model Number NJ 1944 M NJ 1044 M NU 1044 M N 244 EM NJ 244 EM NU 244 EM NUP 244 EM NU 2244 EM NUP 2244 EM N 344 EM NJ 344 EM NU 344 EM NJ 2344 EM NU 2344 EM NUP 2344 EM NNU 4944 M NA
Number of Row Single Row
Seals Type Open
Precision Rating P6
Outside Diameter 300, 460
Bore Size 220, 220

Please contact with us via sale01@hady.Ltd directly or whatsapp/wechat +86 136 0603 6591 for rush case support.



 Principal dimensions Basic load ratings Speed limits Weight Radius Dimensions
Part   number Bore Outer Width Dynamic Static Grease Oil

d D B C Co rpm Kg rs min r1s min F E

mm kN 1 min−1 mm mm
NJ 1944 M 220 300 38 336 560 2400 3000 8,3 2,1 2,1 250,0
NJ 1044 M 220 340 56 650 1047 1300 1600 19,3 3 3 250,0
NU 1044 M 220 340 56 650 1047 1300 1600 18,5 3 3 250,0
N 244 EM 220 400 65 725 1110 1500 1800 36,45



NJ 244 EM 220 400 65 725 1110 1500 1800 37,1



NU 244 EM 220 400 65 725 1110 1500 1800 36,4



NUP 244 EM 220 400 65 778 113 1400 1700 40,2 4 4 270,0
NU 2244 EM 220 400 108 1570 2280 1300 1600 62,5



NUP 2244   EM 220 400 108 1370 2310 1400 1700 61,5 4 4

N 344 EM 220 460 88 1130 1160 1200 1500 72,21



NJ 344 EM 220 460 88 1130 1160 1200 1500 72,72



NU 344 EM 220 460 88 1130 1160 1200 1500 72,34



NJ 2344 EM 220 460 145 2425 3750 1400 1700 125 5 5

NU 2344 EM 220 460 145 2425 3750 1400 1700 125 5 5

NUP 2344   EM 220 460 145 2425 3750 1400 1700
5 5

NNU 4944 M   NA 220 300 82 533,7 1330 1800 2100 16,600 2,1
243,0


Cylindrical roller bearings are manufactured in a number of designs as indicated below.The predominant

type being the single row roller. The roller and cage assembly are guided axially by the integral

flanges (ribs) on one of the bearing rings. This design facilitates ease of mounting and dismounting,

particularly where both races are an interference fit on their seatings. Roller bearings with flanges (ribs)

on one race only do not provide any end location. Various roller bearings with ribs on both races provide

axial location, and are capable of carrying light or intermittent axial loading. These patterns are of

the NJ, NUP and NJ+HJ types. If used for axial location and light axial loads, the contact between the

flanges (ribs) and the roller ends is that of a sliding bearing, not rolling bearing; therefore

lubrication is of paramount importance.

Alignment is much more critical than that of a ball bearing; as a general guide, this is limited to

approximately .003 radians. Double and multi-row bearings are also manufactured

- see NN and NNU series.

Dimensions in accordance with ISO 15-2011


Of these bearings, the NJ, NUP and NJH types can also

carry light or intermittent thrust loads between the guide rib

and the end of the rollers. Several arrangements of locating

ribs are available, as illustrated. The choice between these

types is usually decided by consideration of assembly procedure

or machine clearances. The bearings utilizing machined

bronze cages are suitable for high speed operation. The NN

30 and NN 30 K series are available in high precision tolerances

and, due to their extreme rigidity, are particularly suited

for use in machine tool spindles.

Typical suffixs used for cylindrical roller bearings:


E - Increased loading capacity

NA - Non-interchangeable components

M - Brass cage guided on the rollers

EM - Increased loading capacity and brass cage guided on the rollers

EMA - Increased loading capacity and brass cage guided on the outer ring





Product Tags: NJ 1944 M , NU 1044 M , NJ 244 EM , NUP 244 EM , NUP 2244 EM , NJ 344 EM , NJ 2344 EM , NUP 2344 EM , NNU 4944 M NA

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Integration Trading (Xiamen) Co.,Ltd
Verified Business License
Business Type
Trading Company
Year Established
2018
Factory Size
1,000-3,000 square meters
Annual Export Value
US$10 Million - US$50 Million
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