Kendrion Electromagnetic Clutches for A/C Cooling Systems

Robust, automotive standards, supporting leading compressors.

Kendrion’s compressor clutches are used throughout the world in bus/coach applications under the harshest conditions – to the fullest satisfaction of our customers.

The clutches are designed to fit all significant compressor types on the market and are available as shaft-mounted or housing mounted models.

Shaft-mounted clutches for A/C compressors

The advantages at a glance:

• Easy installation
• Slim designs possible
• Weight-optimization possible with aluminium pulleys
• Service-friendly through use of standard ball bearings
• Wide range of pulley diameters possible, owing to the ingenious design
• Even small pulley diameters possible for increased weight reduction

Housing-mounted clutches for A/C compressors

The advantages at a glance:

• Maintenance-friendly
• Slim designs possible
• No false brinelling, as the bearing rotates both when the clutch is engaged and disengaged
• Belt forces are absorbed by the compressor housing, relieving the shaft and thus the compressor bearing from belt forces
• Durable and robust through high wear reserve

The plus for your clutch – Micro-pulsing

In very tough and demanding applications, the lifetime of the ball bearings can be shortened due to the long- time engagement of the clutch. The longer the clutch is engaged, the more the risk of lubrication shortage of the rolling elements increases. As a result, the ball bearing surface can be damaged. The risk of ball bearing damages due to idle marks can occur in all shaft mounted clutches.

The Kendrion solution lets the bearing roll off despite the clutch is engaged. An electronic circuit, that opens the clutch for a brief moment causes a micro movement of the rolling elements and ensures the lubrication of the rolling bearings.

Thanks to the intelligent control technology this function can be guaranteed reliably and independent of the wear of the clutch without causing relevant wear itself.