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View all Economy Trapezoidal(Lead) Screw
Economy Lead Screw Trapezoidal Screw
- Smooth operation guaranteed by perfect assembly
- Screw and nut provided together
- All nut models in stock
Product Features
Precision Advantages
Screw mold processing with CNC grinder
Ensures screw precision with rolled threads, resulting in smooth, burr-free surfaces
Complete product wobble inspection
Ensures product consistency for worry-free use
Screw precision full inspection
Smooth assembly of screw and nut
Standard screw shape of 30-degree trapezoidal screw
H=1.866P H1=0.5P d2=d-0.5P d1=d-P D=d D2=d2 D1=d1
Male screw
d: Screw outer diameter, d1: Screw bottom
minor diameter, d2: Effective diameter
Female screw
D: Screw bottom diameter, D1: Inner diameter, D2: Effective diameter, P: Pitch, H1: Height of the contact part
* Pitch 3 for D dimension 16, pitch 5 for D dimension 25, pitch 6 for D dimension 40 all follow Tr technology standards.
Trapezoidal(Lead) Screw Precision
| Item | Content |
| Screw Precision | Grade 7e |
| Nut Precision | Grade 7H |
| Single Pitch Error | ±0.02 |
| Cumulative Pitch Error | ±0.15/300mm |
| Full-Length Runout Tolerance | Refer to the table on the next page |
Runout Measurement Method
Product Features
Trapezoidal Screw Types
| Type | Straight bar type | Holder type | Both-end terminal type | One-side step, one-side two-step type |
| Shapes |  |
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Trapezoidal Screw Nut Types
| Standard Type | Compact type | Convex type | |||
| Circular flange type | Cut flange 2-hole type | Cut flange 4-hole type | Circular flange type | Cut flange 2-hole type | Slider width expansion type |
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Additional Machining Options for Trapezoidal Screws
| Flat Machining |  |
| 2 Flat Sides |  |
| Stop Ring Groove |  |
| General Screw Hole |  |
| Bearing Male Screw |  |
| 4 Flat Machining |  |
| Keyway |  |
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