Home > Industrial Equipment & Components > Bearing > Cylindrical Roller Bearing > NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings

NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings

NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings thumbnail-1
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings thumbnail-2
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings thumbnail-3
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings thumbnail-4
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings thumbnail-5
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings photo-1
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings photo-2
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings photo-3
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings photo-4
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA, Cylindrical Roller Bearings photo-5
Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)
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Brand Name:
HPC or Natural or OEM
Place of Origin:
China
Model Number:
NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA
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Port of Shipment:
China
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Brand Name HPC or Natural or OEM
Place of Origin China
Model Number NJ 18/630 EM N 28/630 M NU 28/630 M N 38/630 M NU 19/630 EM NU 29/630 EM NJ 29/630 EM NU 10/630 EM NUP 10/630 EM NU 20/630 EM NU 30/630 M] NNU 49/630 K M NA NNU 41/630 M NA
Number of Row Single Row
Seals Type Open
Precision Rating P6
Outside Diameter 780, 1030
Bore Size 630, 630

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 18/630   EM 630 780 69 1050 2500 630 750 74,2 4 4 667,0
N 28/630 M 630 780 88 1800 4500 630 750 95,6 4 4
744,0
NU 28/630   M 630 780 88 1800 4500 630 750 96 4 4 668,0
N 38/630 M 630 780 112 2150 5750 550 650 118 4 4
745,0
NU 19/630   EM 630 850 100 2150 4250 600 700 160 6 6 683,0
NU 29/630   EM 630 850 128 3250 7250 580 680 214 6 6 683,0
NJ 29/630   EM 630 850 128 3250 7250 580 680 222 6 6 683,0
NU 10/630   EM 630 920 128 3400 6250 450 530 284 7,5 7,5 702,0
NUP 10/630   EM 630 920 128 3400 6250 450 530 284 7,5 7,5 702,0
NU 20/630   EM 630 920 170 4700 9500 480 560 395 7,5 7,5 699,0
NU 30/630   M] 630 920 212 6450 14500 450 530 485 7,5 7,5 699,0
NNU 49/630   K M NA 630 850 218 3835 10716 670 800 368,0 6,0
704
NNU 41/630   M NA 630 1030 400 10263 22104 340 420 1304,0 7,5
734

 


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 18/630 EM , N 28/630 M , NU 28/630 M , N 38/630 M , NU 19/630 EM , NU 29/630 EM , NJ 29/630 EM , NUP 10/630 EM , NU 20/630 EM, NU 30/630 M], NNU 49/630 K M NA , NNU 41/630 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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