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Home / Engineering Data
Engineering Data
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Idler Pulley Information |
Information covering both Drives and Idlers on this page. Please scroll. |
Drive Pulley Information | Click on [MORE] to get further details |
Idler Pulleys - New Hampshire Industries manufactures idler pulleys in four (4) product designs using three (3) bearing types. The product designs are:
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Stamped |
By using stamped halves surrounding a bearing these offer an economical pulley for high volume applications. Selecting from NHI's many tooled "A" and "H" series products allows them to also be cost-effective in many low volume uses. See our catalog for the many common sizes (and a few uncommon ones) available. |
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Molded
Polymer |
NHI also offers our "A" and "H" series bearings molded into polymer pulleys. While the standard idlers are molded in a type 6/6 nylon with glass reinforcement, we offer other polymers on a Made-to-Order (MTO) basis. |
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Split-formed |
The perfect compliment to our split-formed drive pulleys, these idler pulleys are available with either a replaceable or non-replaceable bearing. See our engineering page on Split-Formed Idlers for details. |
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Machined |
This MTO family offers the greatest flexibility in manufacturing the custom part to fit your application. Contact us with your design and usage for a quote today. Due to their low tooling cost, fully machined idlers can be the economical answer when the volume usage is low and/or the pulley is complex. |
And the bearing types are:
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Application |
Bearing Series |
Construction |
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Moderate Load, Moderate Speed |
NHI "A" Series |
Double row ball bearing |
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Engineering Information [MORE] |
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Tooled Sizes [MORE] |
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Higher Load,
Higher Speed |
NHI "H" Series |
Single Row Ball bearing |
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Bearing Information [MORE] |
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Bore Adapter Information [MORE] |
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High Load, Low Speed |
NHI "O" Series |
"Plane" bearing (bushing) |
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General Information [MORE] |
For Other Idler and Bearing Information:
Idler Bearing Life and Load Information [MORE]
Idler Runout Specifications [MORE]
Drive Pulleys - New Hampshire Industries drive pulleys are manufactured by three techniques (click on the technique to see design considerations):
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Stamped |
Custom, application specific design only |
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Machined |
Selected sizes available from stock, "Quote
to fit" custom, application specific designs. |
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Split-formed |
Stock and custom sizes available - also available as "quote to fit" your application.
Click here to display currently
Tooled Sizes (an ever-growing list!) |
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General Drive Information: |
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Drive Runout Specifications [MORE] |
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Engineering Information [MORE] |
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Bore Information/ Set Screw Information [MORE] |
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