horizontal gear box

Cooling :
Large cooling fins are provided on all sides of body for sufficient cooling. Sizes over 3.00 inch center distance, Fan & Fan-Cover is provided for extra cooling & better efficiency.

Lubrication
Lubrication is done by splash of oil from the sump to all rotating parts, lubrication is positive to either direction and at any speed of rotation, No special attention is necessary except periodic checking of oil level. A large filled cum breather plug to gather with oil level indicator and drain plug is provided.

Shaft
The wheel shaft is made of high grade alloy steel and of larger diameter to carry torsional as well as bending load.

Worm shaft (Worm)
Worm is integral with the shaft, made of high grade alloy steel, is case hardened and highly polished & ground on all cylindrical portions of the worm shafts.
 
 
 
 
 
 
 
 
 
 
 
 
  Bearings
In general, worm & worm wheel shaft are mounted on anti-friction taper roller bearings of ample capacity to take journal as well as thrust loads, other type of bearings can be used for special application.

Worm Wheel
Worm Wheels are made of sand or centrifugally cast phosphor-bronze(pb2-c) rims shrin fitted and screwed on cast-iron centres. Worm wheels are accurately hobbed on precision hobbing machine with high accuracy hobs. Each worm wheel is checked to match with master worms to ensure inter changeability.

Gear Case
Made of close grained cast iron, and of mono block body designed upto 6.00 center Height in YNU models, gear case is completely oil tight & dust proof. Gear case is of stream lined design and modern in appearance. The faces and boxes are accurately machined on precision horizontal boring machine to achieve perfect alignment.

Specifications
Wherever applicable British as well as Indian Standards are used. The design standards are mainly based on B.S. -721.

Range
Standard gear boxes are available in various sizes ranging from 28.5 mm(1.125 inch) center distance to 400 mm (16.00 inch) center distance and ratios are available from 5:1 to 70:1 in single reduction, and even much higher ratios available in double reduction units ranging from 100:1 to 4900:1.

General
Yash reduction gear boxes are of robust construction, are manufactured in adoptable as well as Horizontal & Vertical fix foot mounted type.