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electric worm gear screw jacks
Motorized Electric Screw Jack Actuators Price

Electric screw jack actuators  is a basis jack-up part, accomplish the functions such as lifting, drop, push and inverting through worm gear drives screw.

electric worm gear screw jack lift
Two-set Linkage Screw Jack System

Two-set linkage screw jack system can be "L", I and T configuration.  It usually consists bevel gearbox, screw jack, electric motor, gear reducer, hand wheel, pillow block bearing, jaw coupling, line shafting.

 Automatic Screw Jack Lift System
Good Performance Screw Jack Lift System

Screw jack lift system structures include miter gearboxes, screw jacks, electric motor or gear reducer, hand wheel, pillow block bearings, jaw couplings and line shaftings.  Screw Jack System Features: 1. Heavy duty, self-locking, positioning precision, uniform lifting speed, fully synchronization, easy installation, easy operation 2. Two screw jacks system, three screw jacks system..forty screw jacks system. 3. Extremely high capacity requirements of need very precise up or down control. It's of high mechanical, they are an excellent choice when hydraulic, pneumatic or chain systems are prohibitive choices. 4. Widely used in wood working machines, plastics processing machines, textile machines, assembly equipment in the automobile and aircraft industries, food and beverage production equipment as well as packaging machines.

acme ball screw jacks screw lift
Four-set Linkage Screw Jacks System

Four-set linkage screw jack system can be  I and T configuration, transmission efficiency can be 85% .

worm screw jack lift table
High Efficiency Worm Gear Screw Jack Systems

Screw jack lift system structures include miter gearboxes, screw jacks, electric motor or gear reducer, hand wheel, pillow block bearings, jaw couplings and line shaftings.

SE enclosed housing slewing drive
Slewing Drive for Aerial platform

Slewing drives are powered with hourglass worm technology for maximum gear torque and the smoothest rotation.

Worm Gear Slewing Drive
Slewing Drive WE Series

WE Series Slewing drive is combined by the curved tooth slewing ring and worm, gear and worms are more touch supply larger torque.

spiral bevel gear unit
HD Series Spiral Bevel Gearbox

HD Series spiral bevel gearbox is hexahedron,which can fit different direction mounting.

worm gear ball and acme screw jacks
Worm Gear Screw Jack with reducer and motor

Screw jack is used in applications where linear motion is required. Lifting of any load, pushing or pulling of mechanical equipment, adjusting of tight clearances of mechanical parts can be done by screw jacks.

Spiral Gear screw jack
High-speed Lifting Bevel Gear Screw Jack

High-speed lifting bevel gear screw jacks are partly completed machines and intended for installation in complete machines or to be used for assembly with a totality of machinery to create systems.The bevel gear transmission makes high lifting speeds and a high duty cycle possible.

acme mechanical screw jacks lifts
Trapezoidal Machine Screw Jacks 5Ton

Worm Gear Machine Screws Jacks are common worm gear screw jacks,can be upright or inverted,with anti-rotation or self-locking functions.

high efficiency electric lift cylinder
Energy Saving Electric Linear Actuator with DC Motor

An Electric Linear Actuator is an actuator that creates motion in a straight line, in contrast to the circular motion of a conventional electric motor.

right angle bevel gearboxes
T Series Bevel Spiral Gearbox

T series bevel gearbox is standardized with many varieties. The deceleration ratio is 1:1, 1.5:1, 2:1, 2.5:1 and 3:1, which are all actual transmission ratios.

Acme Screw Linear Actuator
ACME Screw Linear Actuator with AC Motor

A Electric Linear Actuator is a mechanical device that converts energy (power from air, electricity or liquid) to create motion in a straight line.

ball screw electric cylinder
Ball screw lifting electric linear actuator

An electric linear actuator is a device that converts the rotational motion of a motor into linear motion – that is push and pull movements.

Bevel Gearbox Center
Ball Screw Jack Common Faults
  • August 9,2018.

We often say that the worm gear screw jack is divided into a trapezoidal screw lifter and ball screw jack. In contrast, these two kinds of elevators have their own advantages, but the specific use of which kind of elevator to match the working conditions depends on the requirements of the speed and load of the equipment. Of course, the accuracy of the ball screw lifter, speed and service life is higher than that of the ordinary trapezoidal screw lifter. It is better for customers with high standards to use the ball screw lifter.

No matter what machinery and equipment is used, if it is used for a long time or if it is used improperly, or if it is not properly maintained, there will be some big or small problems. Today, we come to tell everyone about the common problems and solutions of ball screw jacks.

ball screw lifter

1. Worm gear wear of ball screw jacks:

The worm gear of the lift is generally made of tin bronze, and the corresponding worm material is made of 45 steel. The wear of the lift during normal operation is very slow and some lifts can be used for more than 10 years. If the wear speed is high, it is necessary to consider whether the selection is correct, whether it is overloaded, and the reason about  the material, assembly quality or use environment of the worm gear.

2. Heat and leakage of the ball screw jack:

Worm gear screw lift generally use copper as a worm gear and worms use harder steel. Due to the rolling friction drive, more heat is generated during operation, which causes differences in the thermal expansion between the components of the elevator and the seal, thereby forming gaps in the mating surfaces, and the lubricating oil solution becomes thin due to an increase in temperature, which may cause leakage. .

There are three main reasons for this situation. One is the poor quality of the surface of the engaging friction surface; the second is the incorrect selection of the amount of lubricant added; and the third is the poor assembly quality and use environment. It will be fine if these points can be improved.

3. Ball Screw Lift Worm & Bearing Damaged

When the screw jack fails, even if the jack housing is well-sealed, it is often found that the gear oil in the ball screw jack is emulsified and the bearing is rusted, corroded, and damaged. This is because after the jack has run for a period of time, the condensate produced after the temperature of the lubricating oil rises and then cools is mixed with the water. Of course, it is also closely related to the bearing quality and assembly process.

Learn more about different types of screw jacks at

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