Worm-Gear Reducers Reach New Heights - Kop-Flex - #1

Edited by Kenneth Korane

Worm-gear reducers reach new heights

Emerson Power Transmission Maysvilte, Ky.

WOTHttSf speed reducers hive of Trrea 2 uw.-rA ;u!;iMi.!hli and irosi-effective method of power inuiMtii\4oii (or nearl} a century But dieir acceptance in recert vears has been tomeuhat diminished by inherent inefli dencv and a repuiabon for ciwitualh deidoping od leak>< Exicnshr research into these mi) Kartell issue* hits pinpointed smril coombtning factors:

• Power lem dm* to worm gtuhngmcfllciency cuciu-rb Jnin heal. This results in reblirely high op iTitinjt impenitwA's when compared w«h mure-efficient speed reducery

• Higher operating wmpenmrc* can Krjdualh "curv" and harden bps, nuking item tor the flexibility necessary to seil effeahvh:

• VMhoui adequale venting, high temperatures increase internal pressure winch can force luhrl

ram paM >eal ltp% or increase Up contati pressure, accelerating .¹ near und grooving (hi (he seal joiiniJy

• Hrealliers or tent |)lu$s eliminale internal pressure buildup, but often provide a leakage padi U r lubricant BubWts of oil forni Over the air pay

■> im u - and - . I '. .¹ ■ j-. ■ ■ ■ . . \o the outside

• The shaft surface tuder the oil-veal lip is critical to effettive scaling. Any lead remaining from the tumtog process act) like an oil pump and cause* leaks. Mhile plunge grinding b the most common mctiod for fin­ishing seal journals, the process does

Worm goorboxes ore noted (or reliable power transmission. Computer-aided assembly of the Mane Raider gearbox eliminates effect*; of cumula five monufeduriog tolerances and helps maximize operating r*fdfw»ry. TH* unti nft/\f*ttu№t o redesigned breather ond textured shaft surface, Jehing the manufacturer offer an 18-fnonm look-free guarantee.

ivm mm