HSG screw jack (cubic design)0 pages

HSG screw jack (cubic design)
HSG Hubgetriebe (kubisch)
Product description
Precision screw jack HSG lifting force 2.5 kN to 500 kN
INKOMA-precision screw jacks are high quality engineering
products for precise lifting, lowering and pivoting of loads, and
are, under normal operation, maintenance free.
The use of high quality grey cast iron and aluminium in the
production of the housings guarantees a long life and a high
operating margin. All housings have a cubic form and are
machined on all faces.
Motor and screw jack assemblies may be mounted in any
attitude. Compressive, tensile and offset loadings can be
tolerated even under extreme operating conditions.
The worm gearing in the INKOMA-precision screw jacks has a
special gear form. A concave profile and cylindrical worm with
an enveloping wheel results in low specific tooth pressure
giving a long working life.
The worm gear is manufactured from quality alloy steel and is
ground and ion-nitrided. Sealed angular contact ball bearings
on both ends of the worm shaft carry the resultant axial loads
from the drive. The gearing, the gear module and the helix
angle are optimised to allow transmission of the largest
possible proportion of the nominal torque. The special worm
wheel is produced from high performance bearing bronze.
The precise location diameter and and the use of ball thrust
bearings accurately position the worm wheel.
Using a centrally guided threaded flanged nut in the gear
housing and the cover, the worm gearset backlash can be
adjusted to a very low level and locked in position. Above and
below the worm wheel a bronze bush is located to carry the
high reactive loads on the translating spindle.
Normally the gear ratios and the spindle pitch are matched. The
trapezoidal spindle is a precision component rolled to tight
tolerances. Single start rolled trapezoidal spindles are self
locking, however it is recommended that an end- stop, motor
brake or similar is employed in order to ensure that operational
safety standards are met.
Precision screw jack with ball screw spindle
Precison screw jacks can be equipped with a range of ball
screws (KGS). For versions see table. The use of ball screws
allows higher lifting speeds. Higher efficiency (ca. 90%)
reduces the required input power and increases the available
duty.
Note: The maximum lifting capacity for each size is reduced.
Please note the dynamic lifting force Fdyn. [kN]. Screw jacks
fitted with ball screws (KGS) are not self-locking. For this reason
the motor must be fitted with a brake.
To ensure the most careful matching of your requirements we
have developed a comprehensive range of accessories.
If you have questions or problems, regarding power, special
designs, corrosion resistance, spindles or modifed gear
housings, contact our engineers and sales personnel. We are
always ready to assist in the correct selection of our products
and with the design of lifting systems. Please make use of our
wide experience.

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