The Mounting Holed Type High Rigidity Crossed Roller Bearing has an integral structure (non-split) for both the inner and outer rings, with mounting holes that allows it to be easily attached to equipment. Further it is less subject to peripheral structures such as housing or pressure plate and realizes high rigidity and high-accuracy guidance.

Features

Rollers are arranged by intersecting orthogonally between inner ring and outer ring of the single structure. A separator, which can smoothly rotate rollers, is incorporated between rollers.
The mounting holes in both inner and outer rings facilitate installation to your equipment.
An open type and a sealed type are available. The sealed type incorporates special synthetic rubber sealing.

Product Overview

What are Crossed Roller Bearings?

Crossed Roller Bearings are compact bearings with their rollers alternately crossed at right angles to each other between inner and outer rings. The orthogonal array of rollers allows the bearing to handle complex loads simultaneously from any direction, which makes assembly possible without needing to worry about load direction.

Compact

The orthogonal array of rollers reduces the cross sectional area of rear-mounted 45° contact angle roller bearings or single row ball bearings by half. This compact design allows you to more effectively utilize space in your application.

High Rigidity

The figure is a cross-section of a rotating turntable. The application point distance from the time moment load is applied to the turntable is L, and the allowable moment load of the bearing is proportional to application point distance L. If increasing application point distance L to increase the moment rigidity of the turntable, two Angular Contact Ball Bearings are required. Because of the need for distance between the bearings, the equipment size increases as well. However, even a single Crossed Roller Bearing can increase application point distance L, keeping equipment compact and improving moment rigidity.

Because of the line contact structure, when using rollers for the bearing inner rolling elements, rigidity is greatly improved compared to ball type bearings. For example, rigidity is increased 3 to 4 times while achieving more compact cross-section dimensions compared to a double row Angular Contact Ball Bearing.