
10mm, 12mm, 16mm, 20mm, 22mm, 24mm, 25mm, 28mm, 30mm, 36mm
| Item | Details |
|---|---|
| Product Name | Trapezoidal Lead Screw with Bronze Nut |
| Thread Type | Trapezoidal (T-thread) |
| Brand | Shuntai |
| Raw Material | GCr15 bearing steel, carbon steel, bronze/brass nuts |
| Manufacturing Process | Rolled thread screws, ground precision screws |
| Main Advantage | Extended service life, stable transmission |
| Lead Time | 7 working days |
| Shipment Port |
Shanghai, China |
Our screws are available in two production standards: rolled lead screws for cost-sensitive general use, and ground lead screws for scenarios requiring better dimensional consistency. The matching brass nuts deliver good self-lubricating performance, reducing wear during repeated reciprocating movement.
How Trapezoidal Lead Screws Work
The trapezoidal thread features parallel spiral flanks. When the shaft rotates, torque transfers to the nut, pushing the nut to travel linearly along the screw axis.

1.Lower Production CostCompared to ball screws with circulating ball channels, trapezoidal lead screws have simpler processing steps, cutting down your procurement budget significantly for medium-load projects.
No delicate rolling ball components inside. The solid screw-bronze nut pairing resists shock and dust, making maintenance straightforward for factory equipment.
Trapezoidal thread geometry creates natural self-locking when power cuts off. This is critical for lifting platforms, vertical 3D printer axes and vertical automation slides to prevent accidental sliding.
4.Wide Material Selection for Customization
Screw shafts use wear-resistant GCr15 bearing steel or regular carbon steel; brass/bronze nuts offer inherent lubricity without frequent heavy oiling.Typical Application Scenarios
Trapezoidal lead screws shine in low-speed, medium-load linear motion equipment, widely adopted across global industries:
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CNC machine auxiliary axes
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Desktop & industrial 3D printers
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Vertical lifting platforms & lifting tables
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General automation assembly equipment
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Medical linear adjustment devices
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Small packaging machinery
Limitations to Consider Before Selection
For ultra-high speed or ultra-high precision positioning tasks, ball screws perform better. Trapezoidal lead screws have higher friction and lower transmission efficiency, so they work best for slow, intermittent operation instead of continuous high-speed cycling.
How to Pick the Right Trapezoidal Lead Screw for Your Project
When placing your order, evaluate 4 core factors to avoid mismatched parts: - 1.Load Weight: Confirm your maximum moving load to select proper shaft diameter (10mm for light loads, 36mm for heavy medium loads)
- 2.Running Speed: Stick to trapezoidal screws if your linear speed stays low; opt for ball screws for fast continuous travel
- 3.Position Accuracy: Ground trapezoidal screws for tighter tolerance needs, rolled screws for standard positioning
- 4.Project Budget: Trapezoidal screws offer far better cost performance than precision ball screws








