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TOP > Products > Needle Roller Bearing Series > Super Slim Type Crossed Roller Bearings CRBT

Needle Roller Bearing Series

IKO Super Slim Type Crossed Roller Bearings CRBT

IKO Super Slim Type Crossed Roller Bearings CRBT

The world’s slimmest roller types with 5 mm width among crossed roller bearings which are highly resistant to moment and complicated loads.
The super slim and compact size which is the result of absolute weight saving realizes device downsizing and space saving.

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Product Outline

Super Slim Type Crossed Roller Bearing is extremely compact bearings having cylindrical rollers disposed perpendicularly between inner and outer rings.
A single bearing can take complicated loads such as radial, axial and moment loads.
By using cylindrical rollers whose elastic displacement due to load is smaller than steel balls, this type of crossed roller bearing can make the device compact and highly rigid comparing to ball bearings or taper roller bearings and the combination of two ball bearings.
These bearings are widely used in the rotating parts of industrial robots, optical apparatus and medical equipments, etc., which contribute compactness and lightness.
The world’s slimmest roller types ! Super low sectional height of 5.5 mm
The sectional height of this type is reduced to 69% of that of CRBS which has been the slimmest. (Shaft diameter : 50 mm) Its width is 5 mm and the sectional area is made compact (43% of that of the conventional types).
Great weight saving down to 38% of the conventional types
As the result of pursue of absolute weight saving, the weight of this type is greatly reduced down to 0.38 of the conventional slim type CRBS. (Shaft diameter : 50 mm)
Realization of compact device designing and space saving
Perpendicular arrangement of cylindrical rollers enables a single bearing to take complicated loads such as radial, axial and moment loads.
Since this type of bearings can be used in a cantilever structure, they can increase the degree of freedom in designing and contribute to device downsizing and space saving.

Line-Up

Model Bore
Diameter
[mm]
Outside
Diameter
[mm]
Width
[mm]
Mass
[g]
Basic Dynamic
Load Rating
C
[N]
Basic Static
Load Rating
C0
[N]
CRBT205A 20 31 5 14.8 1400 1290
CRBT305A 30 41 5 20.7 1770 1970
CRBT405A 40 51 5 26.5 2000 2520
CRBT505A 50 61 5 32.3 2280 3200
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