Electric worm gear ball screw jacks of high precision


Quick Details

Place of Origin:

Zhejiang, China

Brand Name:


Model Number:


Rated Power:


Gearing Arrangement:


Output Torque:


Input Speed:


Output Speed:


Product name:

ball screw jack

Mounting position:

Vertical (flange Mounted)


Cast Iron or Steel

Housing material:

Spheroidal Graphite Iron


SKF,NSK, or customized

Input Form:

IEC Flange, or Motor

Output Form:

Flange Output, Solid Shaft


Synthetic, Mineral


1 Year


Power Transmission

Supply Ability

Supply Ability:
100 Set/Sets per Week ball screw jack

Packaging & Delivery

Packaging Details
Polyurethane foam around the screw jack (avoiding shock in delivery) in veneer case.”>Polythene liner bag enclosing screw jack (which is moisture barrier, rust-proof).

Polyurethane foam around the screw jack (avoiding shock in delivery) in veneer case.
Main Ports in China
Lead Time
Shipped in 10 days after payment

Online Customization

Electric worm gear ball screw jacks of high precision

Product Overviews

1. Ball Screw Jack Picture & Function:

Theball screw jackscan be employed for lifting, pulling, moving, aligning any kind of load with a perfect synchronism, which is difficult to obtain by means of other handling devices.The ball screw jacks are suitable for high services as well as for a very rapid, quick and precise positioning.

Ball Screw Jacksuse a ball screw and nut made from hardened alloy steel with bearing balls carrying the load between nut & screw. This rolling action reduces the friction between nut and screw, permitting smooth and efficient load movement that requires approximately 1/3 less torque than a machine screw jack with the same load.

2. Ball Screw Jack’s Advantages:

The ball screw jacks are preferred for:

• Long travel lengths
• Long, predictable life
• High duty cycles
• Oscillating motion

3.Screw Jack Part Introduction:

4. How to Choose aScrew Jack?Some questions you need answer pls.

Q1: The capacity isto load? KG (it means how many Kg or Tons the screw jack need to lift or drop?)

The stroke is ? mm (it means the screw shaft length, such as 500mm)

The lifting speed is ? mm/second (it means how much time you want to use to finish the stroke? Such as I want to use 20 seconds to finishthe500mm strokethen can come out the speed is 25mm/s )

Screw jack NDB010~NDB500performance parameters table asthe below:

Type NDB010 NDB025 NDB050 NDB100 NDB150 NDB200 NDB300 NDB500
Maximal load (kN) 9.80 24.5 49.0 98.0 147 196 294 490
Outer diameter of screw (mm) 20 25 40 50 55 65 80 100
Small diameter of screw(mm) 17.5 21.4 31.3 39.1 43.1 55.7 74.8 87
Pitch of screw L1(mm) 5 8 10 12 16 16 16 20
Worm ratio i H speed 5 6 6 8 8 8 102/3 102/3
L speed 20 24 24 24 24 24 32 32
Permissible output maximal power(kw) H speed 0.54 1.3 2.2 3.6 4.0 5.5 8.9 13.3
L speed 0.27 0.63 1.0 1.9 2.1 2.8 4.1 6.5
Axial dispacement of screw,when put shaft rotate a circle (mm) H speed 1 1.33 1.67 1.5 1.5 1.5 1.5 1.88
L speed 0.25 0.33 0.42 0.5 0.5 0.5 0.5 0.63

Q2:Which the screw topyou need?Answer: I need (A B C D E F).

Q3:Manual type(Hand wheeldriven) or electric motor driven type?Answer: I need type.

Q4:Screw movement (screw travelling up and down when working) or Nut movement (the nuttravelling up and down when working)? Upright orInverted? Answer: I need (A B E F)

Q5:Screw jacks linkage

Do you need two or above two sets screw jacks to linkage, if yes pls seethe belowscrew jacks linkage scheme, if no pls ignore this.

Answer: 1. No need 2. Need,sets (2 /3 /4 /8 or othersets) screw jacks to linkage, ( I /T / L / H / U) )type ( Or you can mark it out on the below screw jacks linkage scheme picture).

For example, a 4-sets linkage H type ( without screw in this picture) as followIing:

After we got your answers we can make a CAD format drawing for you to check and quote you the best price.

5. Screw Jack’s Application:


Payment & Packaging


We acceptT/T, Credit Card (VISA or MasterCard), L/C, Paypal,Alibaba Trade Assurance(this service can guarantee the clients’ benefit to utmost)etc.

2. Package:

1. Common package: PE bags with bubble, carton box then bubble then plywood box, safe package.

2. According to clients’ special requirements.

3. Shipping:

1. Seatransportation: shipping FCL or shipping LCL, this is the most common way

2. Land transportation: this is suitable for the inland countries

3. Air transportation

4. Express:DHL,TNT,UPS,Fedex etc.

Looking forward to your inquiry,and we’ll give you reply within two hours!