LUOYANG MONTON BEARING SCIENCE & TECHNOLOGY CO.,LTD.
Free Member
CRBF8022AT 80*165*22mm Crossed Roller Ring

CRBF8022AT 80*165*22mm Crossed Roller Ring

Reference FOB Price:
US0.00 ~ 1000 / Piece
Min. Order:
1 Piece
Stock:
10000 Piece
Production Capacity:
1000PCS/WEEK
Port:
Shanghai
Payment term:
T/T
Delivery time:
Stock
Technical Parameters:
Product Designations:
CRBF8022AT
Old Designations:
CRBF8022AT
HS Code:
84825000.90
Structure:
Sealed
Number of Rows:
Single row
Inside Diameter:
80 mm
Outside Diameter:
165 mm
Thickness:
22 mm
Demensions:
80*165*22mm
Weight:
0.17 KG
Basic dynamic load rating (Cr):
1300
Basic static load rating (Cor):
2000
Reference speed (Grease rpm):
10000
Limiting speed (Oil rpm):
10000
Brand:
Monton
Clearance:
C0
Precision Rating:
P6 P0 P4 P5
Vibration:
Z1V1
Load Direction:
Axial
Bearing Material:
GCr15
Cage:
blocker
Cage material:
GCr15
Seals Type:
no seals
Seal Material:
GCr15
Number of Balls:
30
Ball Material:
GCr15
Roller Material:
GCr15
Contact Angle:
90°
Gear Options:
no gear
Transport Package:
Carton/wooden case
Shipping Ways:
ocean,sea
Country of Origin:
Luoyang
Service:
Good
Quality Control:
Third party/Self-control
Feature:
roller
Application:
Harmonic Drive
CRBF8022AT 80*165*22mm Crossed Roller Ring

CRBF8022AT 80*165*22mm Crossed Roller Ring

 

Identification number Boundary dimensions    mm Mounting holes    mm Mounting dimensions mm Basic dynamic load rating
C
N
Basic static load rating
0
N
Mass (Ref.)
kg
Open Type Sealed Type d D B (1)
1min
(1)
2min
PCD1 Inner ring
Mounting holes
PCD2 Outer ring
Mounting holes
a Da
CRBF8022AT CRBF8022ATUU 80 165 22 0.6 1 97 10-M5 through 10- φ 5.5 through φ 9.5 counter bore depth 5.4 148 10-φ5.5 through
φ9.5 counter bore depth 5.4
107 137 51,100 72,000 2.63
CRBF8022A CRBF8022AUU 80 165 22 0.6 1 97 148 107 137 51,100 72,000 2.60
CRBF8022AD CRBF8022ADUU 80 165 22 0.6 1 97 148 107 137 51,100 72,000 2.60

 

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.

 

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.

 

(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.



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.

 

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.

 

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.

 

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.

 
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