Machinedesign 1241 Idlersprox 0 0

Companion Component: Tensioners

Feb. 1, 2008
Idler sprockets Idlers effectively create accurate tension in a chain drive. Features & benefits Eliminate whipping action sometimes found in drives with

Idler sprockets

Idlers effectively create accurate tension in a chain drive.

Features & benefits

  • Eliminate whipping action sometimes found in drives with long centers; if chain continues to run loose it will wear at an increased rate

  • Prevent added wear to bearings as a result of shock loading caused by loose chain

  • Acquire proper chain tension when shafts in use are not adjustable

  • Establish approximately 120° chain wrap around a small sprocket

  • Available in bronze bushed, bronze bearing, needle bearing with hardened teeth, ball bearing with hardened teeth, and ball bearing with non-metallic teeth

Martin Sprocket & Gear Inc.

(817) 258-3000
www.martinsprocket.com
Circle 151

Adjustable pitch sheave

MVS adjustable pitch, heavy-duty sheave is designed for use with A, B, 3- and 5-V belts.

Features & benefits

  • Designed for up to 40 hp at 1,750 rpm

  • Each turn on adjustment screw moves flange by 1/16 in.

  • Bores from 1⅛ to 2⅛ in., depending on model

  • O.D. from 5.118 to 9.055 in.

MASKA Inc.

(800) 463-8928
www.maskapulleys.com
Circle 152

Belt, chain tensioners

Zetasassi line of belt and chain tensioners improves performance in industrial automation applications by keeping constant tension in belt and chain drive systems.

Features & benefits

  • Transmit torque more efficiently; decrease wear

  • Spring-loaded Econobelt tensioners, in rotational and linear movement types, adjust tension on chain or belt

  • Easy to install and maintenance-free

  • Offer 23% increase in chain life, 7% reduction in vibrations, and 12% reduction in noise

  • Reduce chain slackening

Quality Transmission Components, Div. of Designatronics Inc.

(516) 437-6700
www.econobelt.com
Circle 153

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