RA7008 cross roller ring, Thk RA series cross reference bearings for medical equipment,GCr15 stainless roller bearing

 

this model is a compact type of model RB with extremely thin outer and inner rings. It is optimal for areas where the swiveling unit needs to be light and small.

 

Specifications:
Product Category:Slewing Rings and Turntable Bearings

 

Bearing Design:
Type:Cross Roller

Product Model:CRA7008
Brand Name:FRB;
Material: GCr15SiMn;GCr15;
Design Units:Metric
Bore:2.7559 inch (70.000 mm)
Outside Diameter:3.3858 inch (86.000 mm)
Outer Width:0.3150 inch (8.000 mm)

Load Ratings
Static Radial:2203 lbs (999 kg)
Dynamic Radial:1344 lbs (610 kg)

Seals / Shields:None (Open Bearing)

Features:Prelubricated; Relubricatable

 

Product Introduction:

CRA Cross roller bearings is a lightweight,compact type with thinnest possible inner and outer rings.It is used in locations where the rotational accuracy of the inner ring is required.

 

Application:
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.

 

Feature:

Ⅰ).Excellent rotation accuracy
the internal structure of cross roller bearing is arranged in 90° vertical cross with each other.

An interval retainer or an isolation block is installed between the rollers to prevent the inclination of the rollers from rubbing each addition, there will be no roller contact or locking phenomenon;At the same time, because the inner and outer rings are segmented, the gap can be adjusted, and even if preloading is applied, high precision rotation motion can be obtained.

 

Ⅱ).Simplified operation and installation
the outer or inner ring, which is divided into two parts, is fixed together after the roller and retainer are loaded, so it is very easy to install.

 

Ⅲ).Bear larger axial and radial loads
Because the rollers are vertically aligned with each other through an interval retainer on a 90° v-groove rolling surface.

 

Ⅳ).Significant savings in installation space
Cross roller bearing inner and outer ring size is minimal miniaturization, especially ultra-thin structure is close to the limit of small size, and high rigidity, so the most suitable for the joints of the industrial robot parts or rotating parts, machinery processing center of the rotary worktable, mechanical rotary department, precision rotary worktable, medical instruments, measuring instruments, such as IC manufacturing equipment widely used.

 

Ⅴ).High speed capability
Reducing shaft length and machining cost, thermal expansion results in limited geometric size changes

 

Ⅵ).Nylon separator,low inertia, low starting torque, easy to control Angle indexing

 

Ⅶ).Optimize the preload, high rigidity, high precision of guiding roller running

 

Ⅷ).Carburized carbon steel Provides excellent impact and surface abrasion resistance

 

Ⅸ).Simple but well lubricated

 

Ralated Models:

Here are some recommended product models:
RA 5008,
RA 6008,
RA 7008,
RA 8008,
RA 9008,
RA 10008,
RA 11008,
RA 12008,
RA 13008,
RA 14008,
RA 15008,
RA 16013,
RA 17013,
RA 18013,
RA 19013,
RA 20013

 

the above models, are only show some products, only for your reference. If you are interested in other models, please send inquiry to us. Sincerely at your service.