Low Backlash Positioning and Drive Units

Low Backlash Positioning and Drive Units are based on the Duplex worm gear principle. The two worm and worm gear each have a different lead.

Through axial displacement of the worm, the backlash can be adjusted to a minimum. The flank contact will not be impaired and additional backlash adjustments are always possible without disassembling the gearbox.
The worms are of a special steel, which is hardened and ground. The worm gears are made from spheroidal graphite casting nitrated.

LOW BACKLASH POSITIONING AND DRIVE UNITS NHS-SERIES

The NHS-Range gearboxes is available in 4 model sizes and 2 standard ratios. The gearbox size is identical to the centreline distance.

SIZE
030		045		060		090

RATIO
30:1		60:1

BACKLASH
< 50 - 70 Arc Sec	Normal adjustment
< 20 - 50 Arc Sec	Greater precision only on client request

Worm and wormwheel are manufactured to DIN 3975/76.
The casings are fully machined and with its many fixing bores and tapped holes allowing mounting in any position.
The synthetic special oil for lubrication ensures a high degree of efficiency and smooth operation.
A special clutch on the input and a discplate coupling on the output shaft guarantee largely torsion and backlash free connections and mounting of any type of motor.

ARTICLE NAMES LOW BACKLASH GEARBOXES

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