Home > Industrial Equipment & Components > Bearing > Cylindrical Roller Bearing > NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA，Cylindrical Roller Bearings

NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA，Cylindrical Roller Bearings

NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA，Cylindrical Roller Bearings thumbnail-1
NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA，Cylindrical Roller Bearings thumbnail-2
NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA，Cylindrical Roller Bearings thumbnail-3
NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA，Cylindrical Roller Bearings photo-1
NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA，Cylindrical Roller Bearings photo-2
NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K 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 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA
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Port of Shipment:
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Brand Name HPC or Natural or OEM
Place of Origin China
Model Number NJ 1028 M NU 1028 M N 228 EM NJ 228 EM NU 228 EM NUP 228 EM NJ 2228 EM NU 2228 EM NUP 2228 EM N 328 EM NJ 328 EM NU 328 EM NUP 328 EM NJ 2328 EM NU 2328 EM NUP 2328 M N 428 M NJ 428 M NU 428 M NNU 4928 K M NA NN 3028 K M NA
Number of Row Single Row
Seals Type Open
Precision Rating P6
Outside Diameter 190, 360
Bore Size 140, 140

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 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 1028 M 140 210 33 172 243 2800 3200 4,1 2 1,1 158,0
NU 1028 M 140 210 33 172 243 2800 3200 4,1 2 1,1 158,0
N 228 EM 140 250 42 359 517 2000 2600 9,04



NJ 228 EM 140 250 42 372 479 2200 2800 8,55 3 3 169,0
NU 228 EM 140 250 42 372 479 2200 2800 8,35 3 3 169,0
NUP 228   EM 140 250 42 372 479 2200 2800 8,55 3 3 169,0
NJ 2228   EM 140 250 68 572 830 2000 2600 13,7



NU 2228   EM 140 250 68 543 780 2000 2600 15,2 3 3 169,0
NUP 2228   EM 140 250 68 479 708 2000 2600 15,2 3 3 169,0
N 328 EM 140 300 62 610 1214 1800 2200 22



NJ 328 EM 140 300 62 607 732 1900 2400 22,5 4 4 180,0
NU 328 EM 140 300 62 703 861 1900 2400 20,2 4 4 180,0
NUP 328   EM 140 300 62 703 861 1900 2400 20,1 4 4 180,0
NJ 2328   EM 140 300 102 1130 1589 1800 2200 37,2 4 4 180,0
NU 2328   EM 140 300 102 1060 1500 1800 2200 36,1



NUP 2328   M 140 300 102 913 1236 1800 2200 37,2 4 4 180,0
N 428 M 140 360 82 868 1010 1300 1700 43,8



NJ 428 M 140 360 82 868 1010 1300 1700 44,76



NU 428 M 140 360 82 868 1010 1300 1700 44,07



NNU 4928   K M NA 140 190 50 189,0 395 3000 3600 3,790 1,5 6,5 156,0
NN 3028 K   M NA 140 210 53 305,0 520 2800 3400 6,210 2,0 9,5
192,0


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 peration. 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: NU 1028 M , NUP 228 EM , NUP 2228 EM , NUP 328 EM , NUP 2328 M , NU 428 M , NNU 4928 K M NA , NN 3028 K M NA , N 328 EM

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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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