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Fenner Drives
Data Centers

Data Centers

Product catalog summary

Introduction
This document outlines innovative solutions to enhance the operational efficiency of CRAC (Computer Room Air Conditioning) units through advanced V-belt technology and tensioning systems.

Zero Downtime V-Belts

Increased Air Flow: Reduced belt slip enhances air-flow, optimizing CRAC unit efficiency.
Durability: Made from composite polyester/polyurethane, these belts last longer than traditional rubber V-belts and resist flex fatigue.
Temperature Resilience: Operate effectively in extreme temperatures ranging from -40°C to 116°C (-40°F to 240°F).
Easy Installation: Can be assembled to any length on-site without moving motors, similar to a bicycle chain.
Simple Re-tensioning: Easily adjusted by removing a link and rolling it back on.
Reduced Dusting: Eliminates black rubber dust, extending filter life and preventing electrical shorts.

Challenges with Traditional Belt Drives

Prone to slip and produce contaminating dust.
Short center distances and high flex rates lead to premature failure.
Maintenance access is difficult and time-consuming.
Often operate above normal design temperatures.

The “Fit and Forget” Solution: V-Belt Drive Tensioners

Efficiency: Automatically maintains optimal belt tension, reducing slip and torque losses.
Ease of Installation: New belts can be installed without tools by simply depressing the tensioner arm.
Reduced Dusting: Properly tensioned belts reduce dust production.
Cost Reduction: Decreases maintenance costs and system downtime.

Ultimate Upgrade: PowerMax Idler and Mounting Bracket

Enhances CRAC unit efficiency and air flow, improving temperature control.
Increases reliability and uptime while reducing maintenance costs.
Extends belt life.

Conclusion
Implementing these upgrades from Fenner Drives, such as PowerTwist Plus V-Belts or SuperTLink SP Wedge Belts with a T-Max Tensioner, will significantly improve CRAC unit performance and reliability.

Catalog excerpts

Cool Ways to Boost Operational Efficiency of your CRAC Units

Open the catalog to page 1

Looks can be deceiving... While outwardly simple, belt drives on CRAC units are not as simple as they appear. Some problems include: • • • • • Tendency to slip and to produce contaminating black rubber dust Short center distances with high belt flex rate leads to premature belt failure Drives are hard to access for maintenance Very time-consuming to re-tension rubber belts correctly Frequently operating above normal design temperatures for V-belts The Solution? Install these upgrades and your CRAC units will be in cyber heaven. Zero Downtime V-Belts The “No Time, No Tools, No Troubles” Solution...

Open the catalog to page 2

V-Belt Drive Tensioners The “Fit and Forget” Solution • Increase drive efficiency! Rotary spring loaded design maintains optimum drive belt tension automatically, eliminating slip and torque losses associated with loose fitting V-belts. • New belt installation is easy! PowerMax Idler Allows V-belt to be installed without tools and without moving drive components – simply depress tensioner arm and install new rubber belt. • Reduced dusting! Drives running at designed parameters means less dust caused by belt slip. • Increased air flow! Reduced belt slip increases air-flow and allows your CRAC...

Open the catalog to page 3

Count on Fenner Drives. We've got the right product for your application. ■Keyless Bushings YURETHANE BELTING & O-RINCS IUHMW BELT & CHAIN GUIDES Information subject to change without prior notification. Visit for the most current information.

Open the catalog to page 4

Data Centers

Data Centers

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