Home » News
News Details

The Differences Between Worm Gear Jack Systems And Bevel Gear Jack Systems, Bevel Gear Screw Jack System Vs. Worm Gear Screw Jack System

The Differences Between Worm Gear Jack Systems And Bevel Gear Jack Systems, Bevel Gear Screw Jack System Vs. Worm Gear Screw Jack SystemBevel Gear Jack System offers higher efficiency, greater speed, longer duty cycle capabilities and multiple configurations than other Mechanical Worm Gear Jack System. As an added benefit, bevel gear jacks also act as miter boxes, making them an ideal choice for multi-jack systems. The system's make it a diverse product that suits a variety of applications. Bevel gear jacks with single lead screws provide the benefits of a self-locking screw, and bevel gear jacks with double lead screws offer even greater travel speed.

Bevel Gear Jack Systems don't come with standardized travel lengths, so each one can be built to specification. Bevel screw jacks come available in machine and ball screw models. Machine screw jacks use a trapezoidal acme screw that offers a low backlash between the nut and screw. Ball screw jacks use hardened bearing balls that allow for smooth and efficient movement of the load. Bevel gear jacks have the capability to run continuously at high efficiency without overheating. Because of the greater efficiency and rolling action, the ball screw can operate at higher speeds or increased duty cycle when compared with the machine screw jack. Available in three jack configurations, bevel gear screws can move along the lift shaft in a variety of ways to meet customer expectations:
Translating Bevel Gear Jack: The translating configuration has a lifting shaft that moves through the gear box. A nut is integrated with the bevel gear such that the bevel gear and nut rotate together. When the lift shaft is held to prevent rotation, the lift shaft will move linearly through the gear box to move the load.
Rotating Bevel Gear Jack: A rotating jack has a lift shaft that moves a nut as it turns. The lift shaft is fixed to the bevel gear. This causes the load, which is attached to the travel nut, to move along the lift shaft.
Keyed Bevel Gear Jack: The lift shaft of a translating style jack must be attached to something which prevents the lift shaft from rotating. If it is not, the lift shaft (and the load) will turn and not translate. A feature can be added to a machine screw jack to prevent lift shaft rotation. This type of jack is referred to as a "keyed jack" and is available in translating models. Anti-rotation is accomplished by a square guide attached to the screw translating inside a square stem cover attached to the jack. The square stem tube is supplied with lube fittings.



Worm Gear Jack Systems are sufficient for large loads that are infrequently moved, Bevel Gear Jack Systems offer more flexibility and programmable options  for a wider range of applications. A mechanical worm gear jack is used where precisely controlled linear movement and positioning are needed. We manufacture two main types of mechanical screw jacks, they are machine screw jacks or ball screw jacks. The design is based on our standard worm gear drives and provides the freedom to mount units in all positions, on a floor, wall or ceiling, for example. Multiple jacks can operate in a group with a shared drive motor, coupled by bevel gears, clutches and transfer shafts. All sizes are available with a variety of gear ratios to ensure the best possible match with the desired movement and precision. A number of versions are also offered with a self-locking action, meaning that the jack locks itself to ensure safety, and no energy is needed to support the load. Complete accessories: bellow, anti-backlash design, safety nut, ball screw, limit switch, overload clutch, potentiometer, encoder, brake, hand-wheel, mounting accessories. Note: Worm gear screw jacks with multi-start screws are also available for applications with high lifting speeds. These versions run at a considerably lower screw speed and better efficiency for the same lifting speed. They are generally not self-locking. Our worm screw jacks come in three versions:
Translating Screw Version: Main components of screw jacks are; trapezoidal lifting screw, worm screw, worm gear and gear housing. Worm screw is rotated manually or by motor. Worm gear is rotated by worm screw. The lifting screw moves through the rotating worm gear. If free load connected to screw jack, screw will rotate circularly and move up ande down. If it is constantly load, screw will move vertical ways linearly. The linear motion speed of lifting screw depends on thread size and rotation ratio of worm gears.
Anti-rotation Keyed Screw Version: Main components of screw jacks are; trapezoidal lifting screw, worm screw, worm gear and gear housing. Worm screw is rotated manually or by motor. Worm gear is rotated by worm screw. The lifting screw moves through the rotating worm gear. In order to prevent/block screw's rotation, wedge should be opened to screw. By this way, the screw can just move vertically. Screw connection type's importance will be put away. The linear motion speed of lifting screw depends on thread size and rotation ratio of worm gears.
Travelling Nut Rotating Screw Version: Main components of screw jacks are; trapezoidal lifting screw, worm screw, lifting nut and gear housing. Worm screw is rotated manually or by motor. With the rotation of the gear, the screw that is inside the screw jack only makes its rotation about its axis. The flange, which is produced from the bronze material on the screw shaft moves linearly upwards or downwards. One of the purposes of using such systems is the lack of ducting or storage for the movement of the screw used in the screw type and screw type cockp. Although screw jack doesn't lift down from bottom. The linear motion speed of lifting screw depends on thread size and rotation ratio of worm gears.


The Differences Between Worm Gear Jack Systems And Bevel Gear Jack Systems, Bevel Gear Screw Jack System Vs. Worm Gear Screw Jack System
Product List
Manual Electric Screw Jack
Electric Screw Jack
Manual Screw Jack
Worm Screw Jack
JT Acme Screw Jack
JTC Cubic Screw Jack
JTM Worm Screw Jack
JTW Machine Screw Jack
JSS Stainless Steel Jack
JTH Compact Screw Jack
JTE Series Electric Cylinder
Custom Made Screw Jack
Ball Screw Jack
JTB Ball Screw Jack
JTD Cubic Ball Screw Jack
Bevel Gear Jack
JTS Bevel Gear Jack
JTG High Speed Screw Jack
Bevel Gear Ball Screw Jacks
Miter Gearbox
JT Miter Gearbox
JTP Miter Gearbox
JTA Miter Gearbox
Hollow Shaft Gearbox
Stainless Steel Bevel Gearbox
Lift System and Accessories
Screw Jack System
Lift System Accessories
Lift System Applications
AC Linear Actuators
Parallel Heavy Duty Linear Actuator
Inline Heavy Duty Linear Actuator
Mechanical Linear Actuators
Application
Jacton Industry Co.,Ltd.
Contact: Warren Lee
Skype: jactonjack
T: 86-769-81585810
F: 86-769-81585852
E: sales@jactonindustry.com
W: www.screw-jack.com

Building 2, No. 5, DongCheng Road, Chang An, Dongguan, Guangdong, China.    Phone: 86-769-81585810 | Fax: 86-769-81585852
China Screw Jack,Ball Screw Jack,Machine Screw Jack,Worm Gear Screw Jack,Bevel Gear Screw Jack,Miter Gearbox,Screw Jack Lift System Manufacturer