OKB INDUSTRIAL CO.,LTD · China

 
 
 
 
CONTACT

OKB INDUSTRIAL CO.,LTD · China

Room 212 , Building B HI-TECH Information Square Nankai District, Tianjin China

Tel. +86 22 58519721/22/23
Fax +86 22 23868160

sales@okbbearing.com

GPS:

N 39°6′25 ′
E 117°13′30
Google Maps

VIDEOS

Cylindrical roller bearing

Cylindrical roller bearing

date:12-04-11, 04:42 PM

Item name:Cylindrical roller bearing

Model: Example:NU2236,NJ1040,etc.

NU series, NJ series, NUP series, N series, NJ+HJ series, NF series, NN series and etc.

Application: Motor, Machine tool, Petroleum, Rolling mill and other industrial machine.


Description: Cylindrical roller bearing is separable bearing and can easily install and remove. It can mainly endure radial load and suitable for high speed. Cylindrical roller bearing can be classified as NU, NJ, NUP, N, NF, NNU and NN bearings. The inner bearing and outer bearing can move to axis direction, so it may used for free end bearing.Cylindrical roller bearing are general use of steel stamping retainer or copper alloy retainer. Also some of them are retainer of forming polyamide.

The bearings allows the angle of the axis of the inner ring and outer ring axis (tilt) is very small, only 2 ' ~4 '. Therefore, relatively high precision machining of shafts and housings. Otherwise, easy in Raceway contacts appear uneven loads or stress concentration.

Rolling for cylindrical roller bearings are in accordance with different number of columns, can be divided into single row and double row and multirow cylindrical roller bearings, with different structures. Bearings with different structures but also in rib design. Commonly used cylindrical roller bearings have the following forms:

Single row cylindrical roller bearings: single row cylindrical roller bearings are separable bearings for easy installation and removal, can be used for two rings tight fit, amendment of the line of contact between the rollers and raceways can reduce the stress concentration.

Double row cylindrical roller bearings:double row cylindrical roller bearings are walks, its isolation makes it easy for installation and removal. Both races are tight fit can be used. Double row cylindrical roller bearings are almost not allowed tilt angle.

Single row cylindrical roller bearings:

N, NU series

N-series bearings without flanges in the outer ring, inner ring extended on both sides of the ribs. Allows the axis between the relative bearing to the shaft in both directions on the displacement.

NU-on both sides of the bearing outer ring flanges and the inner ring without flanges. Also allows the axis between the relative bearing to the shaft in both directions on the displacement. Therefore, the class structure is useful as the moving end bearing.

NJ, NF series

NJ-series bearings can withstand a certain amount of single direction axial loads. NF-series bearings can also withstand a certain amount of single direction axial loads. Therefore, the type of structure is suitable as a single-direction axial location of bearings.

NUP, NFP series

NUP-series bearings have outer ring flanges on both sides, and one side of the inner ring with (fixed) ribs, while the other side of flat ring is separable. This type of bearings can withstand a certain amount of bi-directional axial load.

NFP-series bearings outer ring side with (fixed) ribs, and detachable ring on the other side, both sides of the inner ring have flanges. This type of bearings can withstand a certain amount of bi-directional axial load. The structure of these bearings can limit the shaft relative to the housing in the axial displacements in two directions. Therefore, suitable for use as a fixed-end bearing.

NH(NJ+HJ)series

NH-series bearings are the combination of NJ-series bearings with HJ-type structure of oblique retaining rings. NH-series bearings are easy to install and remove.

NH-series bearings can limit the shaft relative to the housing in the axial displacements in two directions. Therefore, suitable for use as a fixed-end bearing.

Double row cylindrical roller bearings

Double row cylindrical roller bearings with two kinds of structures of cylindrical bore and tapered bore (rear bearing code plus k). The bearings have a compact, rigid, such as carrying capacity, load-deformation of small advantages, especially suitable for machine tool spindle bearings. Conical hole can also play a role in micro-adjust clearance, simplifies positioning device structure, and easy to remove.

NN, NNU series

N-series bearings are without flanges in the outer ring, with inner ring flange with ribs on both sides. This type of bearings allow the shaft relative bearing between the axial displacements in two directions.

NNU-series bearings with outer ring flanges on both sides of the middle ribs, inner ring without flanges. This type of bearings allow the shaft relative bearing between the axial displacements in two directions. Therefore, such a structure suitable for the moving end bearings. The type of bearings cages are commonly solid cages.

NNF series

NNF-series bearings are double row full complement cylindrical roller bearings, bearings consist of an outer ring of ribs, two double-rib structure type of the inner ring. Roller guided by ribs of inner ring and two inner rings with fastening ring with fixed. The structure can withstand a large radial loads and axial loads, and can also withstand the overturning moment, therefore, is often used as a fixed-end bearings.

Four-row cylindrical roller bearings

Four-row cylindrical roller bearings are mainly used for cold and hot rolling mill, roughing mill, rolling mill machinery. The bearings are separate structures, bearing rings and rolling elements components can be easily separated. Therefore, it is easy for cleaning, inspection and installation .

 
Cylindrical Roller Bearings


  1. >Cylindrical roller bearing - 1