New Crossed Roller Bearing from IKO Combines Ultra Small Size and Rigidity

October 25, 2021

IKO International has unveiled its newest crossed roller bearing — the CRBT105A. This ultra-small, ultra-thin unit is designed to provide exceptional rigidity for space-constrained automated machine designs.

The CRBT105A features a 10 millimeter bore diameter, 21 millimeter outside diameter and a narrow width of 5 millimeters. Despite its compact size, the CRBT105A offers rigidity up to four times greater than double-row angular contact ball-type bearings. This combination of small size and high rigidity makes the CRBT105A suitable for robots with articulating arms as well as compact surveillance cameras.

With rollers alternately crossed at right angles to each other between inner and outer rings, the CRBT105A produces a greater contact surface to allow the bearing to handle heavy or complex loads from any direction simultaneously. This orthogonal roller arrangement results in a bearing that occupies just half the sectional area of rear-mounted, 45-degree contact angle single-row roller or ball-type bearings.

The CRBT105A also features:

  •    –   Separators between cylindrical rollers to provide smooth rotation.
  •    –   Dynamic load rating of 1,120N and static load rating of 811N.
  •    –   Small coefficient of friction for high-speed rotation.
  •    –   Lightweight design.


Crossed Roller Bearings are advanced products that are ideal for space-constrained automated machine designs. In addition to the ultra-small, ultra-thin CRBT105A, IKO also offers a wide range of rigid, compact crossed roller bearings that are well-suited for machine tools, industrial robots, medical equipment and other precision applications.

For more information, visit www.ikont.com.

Related Articles



Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More



Latest Articles

  • UL Certification Requirements for OEMs: Essential Guide for Renewable Energy Projects

    May 5, 2026 In today’s fast-evolving energy and manufacturing landscapes, product safety, performance, and reliability are under greater scrutiny than ever before. For OEMs (Original Equipment Manufacturers) and players in the renewable energy sector, one certification has emerged as a gold standard—UL certification.  Although not legally mandatory in all regions of North America, UL (Underwriters Laboratories) certification is Read More…

  • Case Study: Improving Transformer Reliability for Underground Mining Power Systems

    May 5, 2026 Segment and Application The customer is a regional provider of engineered electrical solutions for mining and industrial applications in Mexico. They design and integrate customized power distribution equipment and electrical systems for harsh environments, including underground mining operations. As part of this work, they required compact power solutions for underground mining skids Read More…