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RU148X P4 / P2 High SpeedCrossed roller bearing

LUOYANG MONTON BEARING SCIENCE & TECHNOLOGY CO.,LTD.

RU148X P4 / P2 High SpeedCrossed roller bearing

Brand Name : MONTON

Model Number : RU148X

Certification : ISO9001

Place of Origin : LUOYANG

MOQ : 1

Price : USD

Payment Terms : TT

Supply Ability : 1000/pcs/week

Delivery Time : 7-35 days

Packaging Details : Single box/Wooden case

Material : GCr15

Accuracy : P4/P2

Application : Harmonic Reducer or robot

Customer : LCM,MAG,DMG,Coma

Standard : ISO9001

Market : Germany,USA,Japan,South Korean

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High Precision Cross Roller Bearing RU148X for Harmonic Reducer

RU148X P4 / P2 High SpeedCrossed roller bearing

Diameter (mm) Identification number Main dimensions Shoulder height Basic load rating(radial) Weight
ID OD PCD B Oil hole rmin
d D dp β d1 ds Dh C/kN Co/kN kg
90 RU148(G) 90 210 147.5 25 3.1 1.5 133 162 49.1 76.8 4.9
RU148X

Crossed Roller Bearing

Features of the Crossed Roller Ring

RU148X P4 / P2 High SpeedCrossed roller bearing

Structure and Features

With the Cross-Roller Ring, cylindrical rollers are arranged with each roller perpendicular to the adjacent roller, in a 90° V groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including radial, axial and moment loads. Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.

High Rotation Accuracy

The spacer retainer fitting among cross-arrayed rollers prevents rollers from skewing and the rotational torque from increasing due to friction between rollers. Unlike conventional types using steel sheet retainers, the Cross-Roller Ring does not cause unilateral contact of roller or seize. Thus, even under a preload, the Cross-Roller Ring provides stable rotation.

Since the inner and outer rings are designed to be separable, the bearing clearance can be adjusted.

In addition, a preload can be applied. These features enable accurate rotation.

Easy Handling

The inner and outer rings, which are separable, are secured to the Cross-Roller Ring body after being installed with rollers and spacer retainers in order to prevent the rings from separating from each other. Thus, it is easy to handle the rings when installing the Cross-Roller Ring.

Skewing Prevention

The spacer retainer keeps rollers in their proper position, thereby preventing them from skewing(tilted rollers). This eliminates friction between rollers, and therefore secures a stable rotational torque.

Increased Rigidity (Three to Four Times Greater than the Conventional Type) Unlike the thin angular ball bearings installed in double rows, the cross array of rollers allows a single Cross-Roller Ring unit to receive loads in all directions, increasing the rigidity to three to four times greater than the conventional type.

RU148X P4 / P2 High SpeedCrossed roller bearing

Large Load Capacity

(1) Compared with conventional steel sheet retainers, the spacer retainer allows a longer effective

contact length of each roller, thus signifi cantly increasing the load capacity. The spacer retainer guides rollers by supporting them over the entire length of each roller, whereas the conventional type of retainer supports them only at a point at the center of each roller. Such one-point contact cannot suffi ciently prevent skewing.

RU148X P4 / P2 High SpeedCrossed roller bearing

(2) In conventional types, the loaded areas are asymmetrical between the outer ring and the inner ring sides around the roller longitudinal axis. The greater the applied load is, the greater the moment becomes, leading end-face contact to occur. This causes frictional resistance, which hinders smooth rotation and quickens wear.

RU148X P4 / P2 High SpeedCrossed roller bearing

Types of the Cross-Roller Ring

Types and Features

Model RU (Integrated Inner/Outer Ring Type)

Since holes are drilled for mounting, the need for a presser fl ange and a housing is eliminated. Also, owing to the integrated inner/outer ring type stryucture with washer, there is almost no effect from installation on performance, allowing stable rotational accuracy and torque to be obtained. Can be used for both outer and inner ring rotation.

RU148X P4 / P2 High SpeedCrossed roller bearing

Model RB (Separable Outer Ring Type for Inner Ring Rotation)

Cross-Roller Ring basic type, with a separable outer ring, and an inner ring integrated with the main body.It is used in locations where the rotational accuracy of the inner ring is required. It is used, for example, in the swivel portions of index tables of machine tools.

RU148X P4 / P2 High SpeedCrossed roller bearing

Model RE (Two-piece Inner Ring Type for Outer Ring Rotation)

Main dimensions are the same as model RB. This model is used in locations where the rotational accuracy of the outer ring is required.

RU148X P4 / P2 High SpeedCrossed roller bearing

Model RA (Separable Outer Ring Type for Inner Ring Rotation)

A compact type similar to model RB with the thinnest possible inner and outer rings. Optimal for locations requiring a light-weight and compact design such as the swivel portions of robots and manipulators.

RU148X P4 / P2 High SpeedCrossed roller bearing


Product Tags:

rotary table bearing

      

industrial turntable bearings

      
China RU148X P4 / P2 High SpeedCrossed roller bearing factory

RU148X P4 / P2 High SpeedCrossed roller bearing Images

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