Drawing-based production
Send 2D or 3D drawings with journals, threads, shoulders, keyways, grooves, and tolerances.
PDF · DWG · STEPUpgrade service
Custom Ball Screws by Drawing, Sample, or Application Requirement
Use custom service as an upgrade when standard parts, bars, or common models are not enough for installation. We quote by length, lead, nut type, accuracy grade, end machining, and packing requirement.
Sample replacement
Repair projects can start with old part photos, measured dimensions, nut form, and application conditions.
Repair and retrofitApplication selection
When drawings are incomplete, start with load, speed, stroke, mounting, accuracy, and quantity.
Engineering reviewConfirmation process
Custom and replacement confirmation process
Custom or replacement parts should not be quoted from one model number alone. Drawings, old-part photos, measured dimensions, application data, and packing requirements need to be checked together to reduce end machining, nut matching, and long-part shipping risks.
Drawing review
Confirm total length, thread length, end dimensions, tolerances, nut form, and drawing revision so quotation and production use the same information.
Sample and old-part photos
Send full-length photos, both end details, nut flange photos, marking text, and key measured dimensions to decide whether sample-based review is needed.
Application confirmation
State machine type, stroke, load, speed, accuracy target, quantity, labels, packing, and whether shipment photos are required.
Specification details
Information usually needed before quotation.
Actual feasibility depends on diameter, length, accuracy grade, and end machining requirements. Send these details as clearly as possible.
| Item | Common buyer input | Why it matters |
|---|---|---|
| Diameter and lead | 1605, 1610, 2005, 2510, 3210 | Determines load, speed, and nut selection. |
| Total and thread length | Overall length and effective thread length | Affects stroke, support position, and packing risk. |
| Accuracy grade | Common starting points are C7 rolled or C5 ground | Balances price, positioning accuracy, and lead time. |
| Nut type | Single nut, double nut, flange form, preload requirement | Affects backlash, rigidity, mounting, and assembly size. |
| End machining | BK/BF, FK/FF, EK/EF, or custom drawing | Ensures the screw fits bearing supports and couplings. |
Case study
Related replacement purchasing case
Review how old-part photos and measurements affect a custom or replacement RFQ.
Replacement Case
How old-part photos, total length, end dimensions, and nut flange holes were checked together.
Replacement CaseFAQ
Custom and Replacement FAQ
Custom RFQs should reduce guessing by sending drawings, old-part evidence, and application conditions together.
Can I quote a custom ball screw without a complete drawing?
Yes. You can first send old-part photos, installation dimensions, or application parameters such as total length, thread length, nut style, machine type, load, speed, and quantity.
What photos are useful for a replacement ball screw?
Take photos of the full screw, both ends, nut flange, mounting holes, markings, and worn areas. Add measured total length, thread length, diameter, and lead when possible.
Which dimensions matter most for drawing-based custom work?
Total length, thread length, bearing journals, shoulders, threads, keyways, retaining grooves, coupling end, and tolerances are important. Confirm the drawing version before quotation and production.