Machined V-Threads Trapezoidal Lead Screws, Power Screws, Square Thread, Acme Thread, Buttress Thread, Lead Screws

• Customization: Available
• Condition: New
• Certification: CE, RoHS, GS, ISO9001
• Model NO.: custom-made as you want
• Standard: DIN, ASTM, GOST, GB, JIS, ANSI, BS
• Customized: Customized
• Material: Alloy
• Application: Metal Recycling Machine, Metal Cutting Machine, Metal Straightening Machinery, Metal Spinning Machinery, Metal Processing Machinery Parts, Metal forging Machinery, Metal Engraving Machinery, Metal Drawing Machinery, Metal Coating Machinery, Metal Casting Machinery
• Trapezoidal Thread Forms: Screw Thread Profiles with Trapezoidal Outlines
• Standardized Variations: Multiple-Start Threads, Left-Hand Threads, and Se
• Start: Single and Multi Starts
• Transport Package: Solid Package
• Specification: CUSOTM MADE
• Trademark: OEM
• Origin: China
• HS Code: 8501109101
• Production Capacity: 50000

Product Description

The trapezoidal metric thread form is similar to the Acme thread form, except the thread angle is 30°.It is codified by DIN 103. While metric screw threads are more prevalent worldwide than imperial threads for triangular thread forms, the imperially sized Acme threads predominate in the trapezoidal thread form.

The advantages of a leadscrew are:

• Large load carrying capability
• Compact
• Simple to design
• Easy to manufacture; no specialized machinery is required
• Large mechanical advantage
• Precise and accurate linear motion
• Smooth, quiet, and low maintenance
• Minimal number of parts
• Most are self-locking

ISO 262 selected sizes for screws, bolts and nuts

Nominal diameter D (mm)	Pitch P (mm)		Nominal diameter D (mm)	Pitch P (mm)
1st choice	2nd choice		Coarse	Fine	1st choice	2nd choice	Coarse	Fine
1			0.25	0.2	16		2	1.5
1.2			0.25	0.2		18	2.5	2 or 1.5
	1.4		0.3	0.2	20		2.5	2 or 1.5
1.6			0.35	0.2		22	2.5	2 or 1.5
	1.8		0.35	0.2	24		3	2
2			0.4	0.25		27	3	2
2.5			0.45	0.35	30		3.5	2
3			0.5	0.35		33	3.5	2
	3.5		0.6	0.35	36		4	3
4			0.7	0.5		39	4	3
5			0.8	0.5	42		4.5	3
6			1	0.75		45	4.5	3
	7		1	0.75	48		5	3
8			1.25	1 or 0.75		52	5	4
10			1.5	1.25 or 1	56		5.5	4
12			1.75	1.5 or 1.25		60	5.5	4
	14		2	1.5	64		6	4

ISO 262 selected sizes for screws, bolts and nuts

Nominal diameter D (mm)	Pitch P (mm)		Nominal diameter D (mm)	Pitch P (mm)
1st choice	2nd choice		Coarse	Fine	1st choice	2nd choice	Coarse	Fine
1			0.25	0.2	16		2	1.5
1.2			0.25	0.2		18	2.5	2 or 1.5
	1.4		0.3	0.2	20		2.5	2 or 1.5
1.6			0.35	0.2		22	2.5	2 or 1.5
	1.8		0.35	0.2	24		3	2
2			0.4	0.25		27	3	2
2.5			0.45	0.35	30		3.5	2
3			0.5	0.35		33	3.5	2
	3.5		0.6	0.35	36		4	3
4			0.7	0.5		39	4	3
5			0.8	0.5	42		4.5	3
6			1	0.75		45	4.5	3
	7		1	0.75	48		5	3
8			1.25	1 or 0.75		52	5	4
10			1.5	1.25 or 1	56		5.5	4
12			1.75	1.5 or 1.25		60	5.5	4
	14		2	1.5	64		6	4

 

Coefficient of friction for thrust collars

Material combination	Starting {\displaystyle \mu _{c}}	Running {\displaystyle \mu _{c}}
Soft steel / cast iron	0.17	0.12
Hardened steel / cast iron	0.15	0.09
Soft steel / bronze	0.10	0.08
Hardened steel / bronze	0.08	0.06