Mechatronics Canada

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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.

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Featured Article: Decoding the Most Versatile Industrial Connector in the World


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If you were around in 1980’s you will probably remember walkmans, vcrs, mix tapes and big hair bands on MTV, amongst other things. The decade started with the release of PacMan, the Rubiks Cube and a Hollywood actor called Ronald Reagan winning the US Presidential election. It ended with the first episode of the Simpsons, Timothy Berners-Lee inventing the World Wide Web and the Berlin Wall coming down to symbolize the end of the Cold War.

Some notable 1980’s inventions included the first artificial heart, CD players, the Apple MacIntosh computer, Microsoft Windows, the Nintendo Gameboy and the first GPS satellite to be launched into space.

But there was one more invention of the 1980s that wasn’t really noticed by the general public, but ultimately paved the way for fast, easy and reliable electrical connections that we often take for granted in control systems today. We are talking about the M12 circular connector that was launched at the Hannover Fair in 1985 and has since become one of the most popular industrial connectors in the world.

These days, you will be hard-pressed to walk into any manufacturing plant without seeing an M12 connector. They are used to connect sensors to I/O modules, vision systems to Ethernet switches, light curtains to safety controllers and much more. Originally only available in 3-pole and 4-pole versions with an A-Coded keyway for power and I/O signals, the M12 connector is still evolving and has become one of the most versatile circular connectors available.

Now, more than 35 years since it was launched, there are many different types of M12 connectors for signal, data and power connections.

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