China OEM China Swl 2.5t Worm Gear Screw Jack for Lifting near me shop

Product Description


Product Description

one, The gear is manufactured of large-power low-carbon alloy metal by carburizing and quenching. The hardness of

the tooth surface is up to HRC58-62. The gears are groun d grinding technologies with large precision and
excellent contact.
2, Large transmission performance: single stage is higher than 96.5%, double degree is higher than 93%, third
stage is increased than ninety%.
three, Easy operation and low noise.
4, Tiny dimensions, mild excess weight, extended service life and high carrying potential.
five, Simple to disassemble and simple to put in.

Expressed Technique Of Model


Product Parameters



How to Select a Screw Jack? Some concerns you need to have answer pls.

Q1: The capability is to load ? KG (it means how many Kg or Tons the screw jack want to raise or fall?)

The stroke is ? mm (it signifies the screw shaft size, such as 500mm)

The lifting speed is ? mm/2nd (it implies how a lot time you want to use to complete the stroke?
This sort of as I want to use twenty seconds to complete the 500mm stroke then can arrive out the velocity is 25mm/s )

Screw jack SWL2.5-a hundred and twenty efficiency parameters desk as the under:
Q2: Which the screw best you require? Answer: I need to have (A B C D E F).
Q3: Manual sort (Hand wheel driven) or electric motor driven sort? Answer: I require variety.
This autumn: Screw motion (screw travelling up and down when operating) or Nut motion (the nut travelling up
and down when doing work)? Upright or Inverted? Answer: I want (A B E F)

Our Benefits



Packaging & Transport


Business Profile

Xihu (West Lake) Transmission Equipment Co., Ltd. situated HangZhou town, ZHangZhoug, as 1 specialist
company and exporter of cycloidal pin wheel reducer,worm reducer, equipment reducer, gearbox ,
AC motor and relative spare components, owns wealthy expertise in this line for numerous many years.

We are 1 direct factory, with sophisticated manufacturing products, the powerful improvement crew and
creating potential to offer good quality goods for consumers.

Our goods broadly served to different industries of Metallurgy, Chemical substances, textile,medicine,wood
and many others. Principal marketplaces: China, Africa,Australia,Vietnam, Turkey,Japan, Korea, Philippines…

Welcome to inquire us any queries, great provide always for you for lengthy time period company.


Q: Are you trading business or maker?
A: We are manufacturing facility.

Q: How extended is your supply time?
A: Usually it is 5-ten times if the merchandise are in stock. or it is 15-20 days if the items are not in stock.

Q: Can we buy 1 pc of every single item for quality screening?
A: Indeed, we are glad to settle for demo buy for quality testing.

Q:How to pick a gearbox which meets your requirement?
A:You can refer to our catalogue to choose the gearbox or we can assist to select when you give
the technical information of required output torque, output velocity and motor parameter etc.

Q: What data shall we give prior to putting a purchase get?
A:a) Variety of the gearbox, ratio, input and output kind, enter flange, mounting placement, and motor informationetc.
b) Housing color.
c) Obtain amount.
d) Other unique specifications.

What Are Worm Gears and Worm Shafts?

If you happen to be seeking for a fishing reel with a worm equipment program, you’ve almost certainly appear across the term ‘worm gear’. But what are worm gears and worm shafts? And what are the benefits and drawbacks of worm gears? Let us take a nearer look! Study on to understand a lot more about worm gears and shafts! Then you’ll be effectively on your way to buying a reel with a worm gear program.
worm shaft

worm equipment reducers

Worm shaft reducers have a variety of benefits more than traditional equipment reduction mechanisms. First, they are very productive. Although solitary phase worm reducers have a optimum reduction ratio of about five to sixty, hypoid gears can usually go up to a maximum of one hundred and 20 times. A worm shaft reducer is only as efficient as the gearing it utilizes. This post will talk about some of the advantages of utilizing a hypoid equipment set, and how it can reward your organization.
To assemble a worm shaft reducer, first take away the flange from the motor. Then, remove the output bearing provider and output equipment assembly. And lastly, put in the intermediate worm assembly through the bore reverse to the attachment housing. Once installed, you need to very carefully remove the bearing carrier and the equipment assembly from the motor. Don’t overlook to take away the oil seal from the housing and motor flange. In the course of this procedure, you should use a small hammer to faucet all around the encounter of the plug near the exterior diameter of the housing.
Worm gears are usually utilized in reversing prevention techniques. The backlash of a worm gear can improve with dress in. Nonetheless, a duplex worm gear was developed to tackle this dilemma. This sort of equipment demands a smaller backlash but is nonetheless highly specific. It makes use of various prospects for the opposing tooth experience, which constantly alters its tooth thickness. Worm gears can also be altered axially.

worm gears

There are a couple of distinct varieties of lubricants that are used in worm gears. The initial, polyalkylene glycols, are utilised in cases the place higher temperature is not a problem. This type of lubricant does not contain any waxes, which can make it an excellent selection in low-temperature applications. Nevertheless, these lubricants are not suitable with mineral oils or some kinds of paints and seals. Worm gears typically attribute a steel worm and a brass wheel. The brass wheel is a lot simpler to rework than steel and is usually modeled as a sacrificial part.
The worm gear is most effective when it is employed in small and compact applications. Worm gears can greatly increase torque or decrease pace, and they are frequently employed the place room is an problem. Worm gears are among the smoothest and quietest gear techniques on the market place, and their meshing performance is excellent. However, the worm equipment requires high-top quality producing to carry out at its highest amounts. If you’re contemplating a worm equipment for a task, it really is critical to make certain that you uncover a company with a lengthy and large good quality track record.
The pitch diameters of each worm and pinion gears should match. The two worm cylinders in a worm wheel have the same pitch diameter. The worm wheel shaft has two pitch cylinders and two threads. They are equivalent in pitch diameter, but have diverse advancing angles. A self-locking worm equipment, also recognized as a wormwheel, is normally self-locking. Moreover, self-locking worm gears are straightforward to install.

worm shafts

The deflection of worm shafts varies with toothing parameters. In addition to toothing length, worm gear dimension and strain angle, worm equipment dimensions and amount of helical threads are all influencing variables. These variations are modeled in the regular ISO/TS 14521 reference gear. This desk displays the variations in each parameter. The ID implies the worm shaft’s center length. In addition, a new calculation technique is presented for determining the equivalent bending diameter of the worm.
The deflection of worm shafts is investigated employing a 4-stage method. Initial, the finite aspect method is utilised to compute the deflection of a worm shaft. Then, the worm shaft is experimentally examined, evaluating the results with the corresponding simulations. The closing stage of the simulation is to take into account the toothing geometry of fifteen diverse worm gear toothings. The outcomes of this step verify the modeled results.
The direct on the correct and remaining tooth surfaces of worms is the very same. Even so, the guide can be different together the worm shaft. This is known as twin guide worm equipment, and is used to remove enjoy in the main worm equipment of hobbing equipment. The pitch diameters of worm modules are equivalent. The same principle applies to their pitch diameters. Usually, the lead angle raises as the variety of threads decreases. Hence, the greater the guide angle, the significantly less self-locking it turns into.
worm shaft

worm gears in fishing reels

Fishing reels usually contain worm shafts as a element of the development. Worm shafts in fishing reels let for uniform worm winding. The worm shaft is attached to a bearing on the rear wall of the reel unit by means of a hole. The worm shaft’s front finish is supported by a concave gap in the front of the reel device. A standard fishing reel could also have a worm shaft attached to the sidewall.
The equipment assist portion 29 supports the rear conclude of the pinion gear twelve. It is a thick rib that protrudes from the lid portion 2 b. It is mounted on a bushing fourteen b, which has a through gap through which the worm shaft twenty passes. This worm equipment supports the worm. There are two varieties of worm gears obtainable for fishing reels. The two kinds of worm gears might have different variety of enamel or they might be the very same.
Typical worm shafts are manufactured of stainless metal. Stainless steel worm shafts are especially corrosion-resistant and durable. Worm shafts are used on spinning reels, spin-casting reels, and in a lot of electrical tools. A worm shaft can be reversible, but it is not fully reliable. There are several positive aspects of worm shafts in fishing reels. These fishing reels also feature a line winder or level winder.

worm gears in electrical equipment

Worms have various tooth styles that can aid improve the load carrying capability of a worm gear. Different tooth styles can be utilized with circular or secondary curve cross sections. The pitch level of the cross segment is the boundary for this kind of mesh. The mesh can be both positive or unfavorable relying on the wanted torque. Worm teeth can also be inspected by measuring them in excess of pins. In many instances, the guide thickness of a worm can be modified employing a gear tooth caliper.
The worm shaft is fastened to the reduced situation area 8 through a rubber bush 13. The worm wheel 3 is hooked up to the joint shaft 12. The worm 2 is coaxially attached to the shaft finish section 12a. This joint shaft connects to a swing arm and rotates the worm wheel 3.
The backlash of a worm gear could be elevated if the worm is not mounted correctly. To correct the dilemma, companies have designed duplex worm gears, which are suited for modest backlash apps. Duplex worm gears use various prospects on each tooth encounter for continuous adjust in tooth thickness. In this way, the center length of the worm equipment can be altered with no changing the worm’s design.

worm gears in engines

Making use of worm shafts in engines has a few positive aspects. Initial of all, worm gears are peaceful. The equipment and worm encounter shift in opposite instructions so the vitality transferred is linear. Worm gears are well-known in programs the place torque is critical, such as elevators and lifts. Worm gears also have the edge of becoming made from gentle resources, producing them simple to lubricate and to use in programs where noise is a issue.
Lubricants are required for worm gears. The viscosity of lubricants decides whether the worm is capable to touch the equipment or wheel. Typical lubricants are ISO 680 and 460, but higher viscosity oil is not uncommon. It is essential to use the appropriate lubricants for worm gears, given that they can’t be lubricated indefinitely.
Worm gears are not advisable for engines due to their minimal overall performance. The worm gear’s spiral motion brings about a significant reduction in space, but this demands a higher volume of lubrication. Worm gears are inclined to breaking down because of the tension positioned on them. Additionally, their limited velocity can lead to substantial harm to the gearbox, so careful upkeep is crucial. To make certain worm gears continue being in top issue, you must examine and cleanse them routinely.
worm shaft

Techniques for manufacturing worm shafts

A novel method to manufacturing worm shafts and gearboxes is supplied by the approaches of the present creation. Elements of the strategy require producing the worm shaft from a common worm shaft blank obtaining a defined outer diameter and axial pitch. The worm shaft blank is then adapted to the desired gear ratio, resulting in a gearbox family members with a number of equipment ratios. The desired method for production worm shafts and gearboxes is outlined under.
A worm shaft assembly procedure might entail creating an axial pitch for a presented frame dimension and reduction ratio. A single worm shaft blank normally has an outer diameter of 100 millimeters, which is the measurement of the worm equipment set’s centre length. On completion of the assembly approach, the worm shaft has the sought after axial pitch. Methods for producing worm shafts contain the subsequent:
For the design and style of the worm equipment, a higher degree of conformity is necessary. Worm gears are labeled as a screw pair in the reduced pairs. Worm gears have substantial relative sliding, which is beneficial when evaluating them to other types of gears. Worm gears require great surface finish and rigid positioning. Worm equipment lubrication usually comprises floor lively additives this sort of as silica or phosphor-bronze. Worm gear lubricants are frequently combined. The lubricant movie that forms on the equipment tooth has tiny impact on dress in and is typically a good lubricant.

China OEM China Swl 2.5t Worm Equipment Screw Jack for Lifting     around me shop China OEM China Swl 2.5t Worm Equipment Screw Jack for Lifting     in close proximity to me shop