Internal Ball Screw
Internal Ball Screw
Internal ball screw is a transmission device that achieves single-turn ball circulation through a reverser inside the nut. Its core features are compact structure, reliable positioning, and suitability for small lead designs.
Internal Ball Screw Advantage
The advantage of internal ball circulation nut is that the outer diameter is smaller than that of external ball circulation nut. Hence it is suitable for the machine with limit space for Ballscrew installation.
Product Details
Internal Ball Screw Features
The advantage of internal ballscrew circulation nut is that the outer diameter is smaller than that of external ball screw circulation nut. Hence it is suitable for the machine with limit space for Ballscrew installation.
It is strictly required that there is at least one end of screw shaft with complete threads. Also the rest area next to this complete thread must be with smaller diameter than the nominal diameter of the screw shaft.
Above are required for easy assembling the ballnut onto the screw shaft.
Structural Features
Components: Includes a screw, nut, steel balls, reverser, and sealing ring. The reverser connects adjacent raceways through a spatial curved groove, allowing the ball to complete a single-turn circulation within the nut.
Advantages:
Compactness: Small nut radius, suitable for space-constrained applications.
High Precision: The ball is always in contact with the screw, resulting in low friction loss and high transmission efficiency.
Low noise: Short circulation loop, smooth operation
Performance Parameters
Accuracy Class: Taking C3 as an example, the deviation within a 300mm stroke must be less than 8μm.
Limited Speed: Standard models can reach a maximum of 3000 rpm, with a stroke value less than 84000 (outer diameter × speed).
Load Limitation: Suitable for light-load conditions; heavy-load applications require an external circulation structure.
Application
Mainly used in CNC machine tools, precision instruments, and other fields with high space and precision requirements. However, the reverser is complex to manufacture and has a high cost.
Relatd Products
What Our Customers Said?
FAQ
Yeah, we have some standard in stock. Including Ball screw with nut, linear guide rail and block, linear module, linear motor and servo motor.
Yes, we can manfacture ballscrew according to customers’ size details drawing or specification, and please offer us below details
1, Ballscrew diameter
2, Thread lead
3, Thread lenght and total ballscrew length
4, End journal configuration
5, Nut configuration
6, Accuracy(lead deviation, geometrical tolerance)
7, Working speed
8, Maximum static load, working load, preload drag torque)
9, Nut safety requirement
10, Lubrication
Usually 45 working delivery days for C5 and P5 accuracy ball screw, but for C7-C10 ballscrew just need 15 working days.
From 50W to 1500W.
We have our own brand, but also we offer HIWIN, Delta, Leadshine, Mitsubishi and others famous brand motor.
Yes, but you need inform us details requirement we need, then our engineer can help you design.
Standard parts: 7-15days.
Non-standard parts: 15-25days.
We will make the delivery as soon as possible with the guarantee quality.
By T/T, for samples 100% with the order; over US $10000, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.
Yes, we can receive.
