Acme Lead Screws & Nuts - Engineering Data

Table 4

BThread Size (dia.-TPI)	CLead (in./rev.)	DStatic Load Rating (Bronze Nut) (lbs.)	EOperating Load Rating (Bronze Nut) (lbs.)	FOperating Load Rating (Plastic Nut) (lbs.)	GMinor Diameter (in.)	HDrive Torque Ratio (in.-lb./lbs.)	IForward Drive Efficiency	JScrew Weight (lbs./ft.)	$Prices & Products RH (Right Hand) LH (Left Hand)
3/16 - 20 STUB	0.050	500	75	38	0.151	0.021	38%	0.073	RH, LH
1/4 - 20	0.050	1,000	300	150	0.175	0.025	32%	0.130	RH, LH
1/4 - 16	0.063	1,000	300	150	0.161	0.027	37%	0.110	RH, LH
3/8 - 20	0.050	2,250	700	350	0.298	0.035	23%	0.310	RH
3/8 - 16	0.063	2,250	700	350	0.285	0.037	27%	0.299	RH, LH
3/8 - 12	0.083	2,250	700	350	0.263	0.039	34%	0.289	RH, LH
3/8 - 10	0.100	2,250	700	350	0.235	0.041	39%	0.270	RH, LH
3/8 - 8 STUB	0.125	1,200	400	200	0.265	0.047	42%	0.280	RH, LH
1/2 - 10	0.100	4,000	1,250	625	0.359	0.051	31%	0.520	RH, LH
1/2 - 8	0.125	4,000	1,250	625	0.332	0.054	37%	0.489	RH, LH
5/8 - 10	0.100	6,250	1,900	950	0.483	0.061	26%	0.849	RH, LH
5/8 - 8	0.125	6,250	1,900	950	0.457	0.064	31%	0.820	RH, LH
5/8 - 7	0.143	6,250	1,900	950	0.438	0.066	34%	0.820	RH, LH
3/4 - 16	0.063	9,000	2,800	1,400	0.658	0.065	15%	1.340	RH, LH
3/4 - 10	0.100	9,000	2,800	1,400	0.608	0.070	23%	1.260	RH, LH
3/4 - 8	0.125	9,000	2,800	1,400	0.581	0.073	27%	1.220	RH, LH
3/4 - 7	0.143	9,000	2,800	1,400	0.562	0.076	30%	1.179	RH
3/4 - 6	0.167	9,000	2,800	1,400	0.537	0.079	34%	1.150	RH, LH
3/4 - 5 STUB	0.200	5,300	1,650	825	0.590	0.083	37%	1.120	RH, LH
3/4 - 5	0.200	9,000	2,800	1,400	0.502	0.086	38%	1.120	RH, LH
7/8 - 6	0.167	12,250	3,800	1,900	0.661	0.088	30%	1.630	RH, LH
7/8 - 5	0.200	12,250	3,800	1,900	0.626	0.093	34%	1.560	RH, LH
1 - 10	0.100	16,000	5,000	2,500	0.856	0.089	18%	2.330	RH, LH
1 - 8	0.125	16,000	5,000	2,500	0.830	0.093	21%	2.280	RH, LH
1 - 7	0.143	16,000	5,000	2,500	0.811	0.095	24%	2.220	RH, LH
1 - 6	0.167	16,000	5,000	2,500	0.786	0.098	27%	2.180	RH, LH
1 - 5	0.200	16,000	5,000	2,500	0.750	0.102	31%	2.089	RH, LH
1 - 4	0.250	16,000	5,000	2,500	0.698	0.109	37%	2.000	RH, LH
1 1/8 - 5	0.200	20,000	6,200	3,100	0.875	0.112	29%	2.730	RH, LH
1 1/4 - 16	0.063	25,000	7,800	3,900	1.155	0.104	10%	3.870	RH
1 1/4 - 5	0.200	25,000	7,800	3,900	0.999	0.121	26%	3.439	RH, LH
1 1/4 - 4	0.250	25,000	7,800	3,900	0.947	0.128	31%	3.300	RH, LH
1 3/8 - 4	0.250	30,000	9,300	4,650	1.071	0.137	29%	4.030	RH, LH
1 1/2 - 10	0.100	36,000	11,300	5,650	1.350	0.128	12%	5.500	RH, LH
1 1/2 - 5	0.200	36,000	11,300	5,650	1.245	0.141	23%	5.100	RH, LH
1 1/2 - 4	0.250	36,000	11,300	5,650	1.196	0.147	27%	4.879	RH, LH
1 1/2 - 2 2/3 STUB	0.375	21,000	6,600	3,300	1.195	0.168	36%	4.980	RH
1 3/4 - 4	0.250	50,000	15,300	7,650	1.445	0.166	30%	6.890	RH, LH
1 3/4 - 3	0.333	50,000	15,300	7,650	1.358	0.177	21%	6.570	RH
2 - 4	0.250	65,000	20,000	10,000	1.694	0.186	27%	9.220	RH, LH
2 - 3	0.333	65,000	20,000	10,000	1.608	0.196	27%	8.769	RH
2 1/4 - 4	0.250	80,000	25,000	12,500	1.944	0.204	20%	11.760	RH, LH
2 1/2 - 4	0.250	100,000	31,000	15,500	2.193	0.224	18%	14.830	RH, LH
2 1/2 - 3	0.333	100,000	31,000	15,500	2.106	0.234	23%	14.230	RH
2 1/2 - 2	0.500	100,000	31,000	15,500	1.930	0.256	31%	13.250	RH, LH
3 - 4	0.250	150,000	46,000	23,000	2.691	0.263	15%	21.800	RH
3 - 3	0.333	150,000	46,000	23,000	2.605	0.273	19%	21.050	RH
3 - 2	0.500	150,000	46,000	23,000	2.456	0.294	27%	19.870	RH, LH
3 1/2 - 2	0.500	200,000	63,000	31,000	2.930	0.332	24%	27.710	RH