Twin Lead Acme Inch Selection - Nook Industries, Inc. PowerAc Acme Screws and Nuts

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Nook Industries provides a complete selection of inch and metric Ball Screws, Roller Screws, Acme Screws, Lead Screws, End Bearing Supports, Precision Locknuts, Worm Gear Screw Jacks, Electric Actuators, HRC 60 Linear Shafting, Linear Bearings and Pillow Blocks to the Linear Motion Industry.

ACME & LEAD
SCREW ASSEMBLIES

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INCH ACME TWIN-LEAD SCREW ASSEMBLIES

Inch Acme Twin-Lead Screw Sizes


	Inch Twin-Lead Screw Assemblies PDF

INCH TWIN-LEAD SCREW ASSEMBLIES

Twin-lead acme screws offer dual opposing motion using a single drive system. These one-piece high performance acme screws are made from high alloy steel that is black oxided for protection. Twin-lead acme screw assemblies can be assembled with Nook PowerAc™ acme nuts, flanges and EZZE-MOUNT™ bearing supports to form cost effective systems. Twin-lead acme screws can be used in molding machines, packaging equipment, food processing machinery, robotics, material handling equipment, tire manufacturing and assembly applications.
• Lead accuracy of 0.004"/foot
• For 0.002"/foot lead accuracy contact Nook Industries customer service. 800-321-7800

Twin-Lead screws are stocked for immediate delivery without machined ends in the following sizes:
1/4-16, 3/8-12, 5/8-8, 3/4-5, 1-5, 1-10, 1 1/4-5, 1 1/2-4, 2-4

To order a twin-lead cut to a custom length and/or with machined ends, select a size from the Twin-Lead Chart, determine OAL, LH and RH thread length, nut, flange and, if required, EZZE-MOUNT™ bearing support. Consult the Twin-Lead Reference Number System in the Twin-Lead Assembly PDF above to complete your part number.

INCH ACME TWIN-LEAD SCREW ASSEMBLIES

Compare	Twin-Lead Screw Size					Bronze Nut				Plastic Nut
	DIA-TPI (in.)	LEAD (in.)	ROOT (in.)	HELIX	MATERIAL	STATIC LOAD (lbs.)	DYN. LOAD (lbs.)	TORQUE TO RAISE 1 lb. (in.-lb.)	EFF. %	STATIC LOAD (lbs.)	DYN. LOAD (lbs.)	TORQUE TO RAISE 1 lb. (in.-lb.)	EFF. %	PDF PAGE

	1/4 - 16	.062	.162	RH/LH	Alloy/SS	1000	312	.026	39	156	156	.021	46	18
	3/8 - 6	.166	.263	RH/LH	Alloy/SS	2250	703	.049	54	351	351	.044	60	21
	3/8 - 12	.083	.263	RH/LH	Alloy/SS	2250	703	.036	37	351	351	.031	43	21
	1/2 - 10	.100	.359	RH/LH	Alloy/SS	4000	1250	.047	34	625	625	.039	40	23
	5/8 - 2 2/3	.375	.457	RH/LH	Alloy	6250	1953	.100	60	976	976	.091	66	24
	5/8 - 5	.200	.377	RH/LH	Alloy	6250	1953	.072	44	976	976	.060	53	24
	5/8 - 8	.125	.457	RH/LH	Alloy/SS	6250	1953	.058	34	976	976	.049	40	24
	3/4 - 3	.333	.537	RH/LH	Alloy	9000	2812	.099	54	1406	1406	.089	60	25
	3/4 - 5	.200	.502	RH/LH	Alloy/SS	9000	2812	.080	40	1406	1406	.066	48	25
	3/4 - 6	.166	.537	RH/LH	Alloy/SS	9000	2812	.073	36	1406	1406	.061	43	25
	3/4 - 10	.100	.608	RH/LH	Alloy/SS	9000	2812	.064	25	1406	1406	.052	30	25
	7/8 - 6	.166	.661	RH/LH	Alloy	12250	3828	.083	32	1914	1914	.068	39	26
	1 - 1	1.00	.906	RH/LH	Alloy	16000	5000	.231	69	2500	2500	.216	74	27
	1 - 2	.500	.698	RH/LH	Alloy	16000	5000	.139	57	2500	2500	.127	63	27
	1 - 4	.250	.698	RH/LH	Alloy/SS	16000	5000	.105	38	2500	2500	.086	46	27
	1 - 5	.200	.750	RH/LH	Alloy/SS	16000	5000	.094	34	2500	2500	.079	40	27
	1 - 6	.167	.786	RH/LH	Alloy/SS	16000	5000	.089	30	2500	2500	.074	36	27
	1 - 10	.100	.857	RH/LH	Alloy/SS	16000	5000	.078	20	2500	2500	.065	24	27
	1 1/8 - 5	.200	.875	RH/LH	Alloy	20500	6330	.100	32	3165	3165	.085	37	28
	1 1/4 - 4	.250	.947	RH/LH	Alloy/SS	25000	7812	.117	34	3906	3906	.099	40	29
	1 1/4 - 5	.200	.999	RH/LH	Alloy/SS	25000	7812	.114	28	3906	3906	.092	35	29
	1 1/2 - 2	.500	1.196	RH/LH	Alloy	36000	11250	.173	46	5625	5625	.152	52	30
	1 1/2 - 2 2/3	.375	1.066	RH/LH	Alloy/SS	36000	11250	.149	40	5625	5625	.129	46	30
	1 1/2 - 4	.250	1.196	RH/LH	Alloy/SS	36000	11250	.133	30	5625	5625	.111	36	30
	1 1/2 - 5	.200	1.249	RH/LH	Alloy/SS	36000	11250	.127	25	5625	5625	.105	30	30
	1 1/2 - 10	.100	1.355	RH/LH	Alloy	36000	11250	.110	15	5625	5625	.091	17	30
	1 3/4 - 4	.250	1.427	RH/LH	Alloy	49900	15312	.153	26	7656	7656	.124	32	31
	2 - 2	.500	1.410	RH/LH	Alloy	64000	20000	.199	40	10000	10000	.174	46	32
	2 - 4	.250	1.694	RH/LH	Alloy	64000	20000	.166	24	10000	10000	.137	29	32
	2 - 5	.200	1.747	RH/LH	Alloy	64000	20000	.159	20	10000	10000	.130	24	32
	2 1/4 - 2	.500	1.684	RH/LH	Alloy	81000	25312	.215	37	12656	12656	.188	42	33
	2 1/4 - 4	.250	1.944	RH/LH	Alloy	81000	25312	.181	22	12656	12656	.150	27	33
	2 1/2 - 2	.500	1.908	RH/LH	Alloy	100000	31250	.234	34	15625	15625	.204	40	34
	2 1/2 - 3	.333	2.106	RH/LH	Alloy	100000	31250	.212	25	15625	15625	.174	30	34
	2 1/2 - 4	.250	2.193	RH/LH	Alloy	100000	31250	.199	20	15625	15625	.163	24	34
	3 - 2	.500	2.410	RH/LH	Alloy	144000	45000	.265	30	0	0	-	-	35
	DIA-TPI (in.)	LEAD (in.)	ROOT (in.)	HELIX	MATERIAL	STATIC LOAD (lbs.)	DYN. LOAD (lbs.)	TORQUE TO RAISE 1 lb. (in.-lb.)	EFF. %	STATIC LOAD (lbs.)	DYN. LOAD (lbs.)	TORQUE TO RAISE 1 lb. (in.-lb.)	EFF. %	PDF PAGE
Compare	twin-Lead Screw Size					Bronze Nut				Plastic Nut

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NOOK INDUSTRIES, INC. - An ISO 9001:2000 Registered Company
4950 East 49th Street | Cleveland, Ohio 44125 | phone: (216) 271-7900 or (800) 321-7800 | fax: (216) 271-7020

Nook Industries provides a complete selection of inch and metric linear, mechanical and electromechanical actuators to the Linear Motion and Power Tarnsmission Industries. Modular Linear Actuators, Precision Profile Rails, Ball Screws, Roller Screws, Acme Screws, Lead Screws, Ball Splines, End Bearing Supports, Precision Locknuts, Worm Gear Screw Jacks, Electric Cylinder Actuators, HRC 60 Linear Shafting, Linear Slides, Bearings and Pillow Blocks.
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