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• Spur Gears - Precision
• PSG : 0.5 Module Steel Precision Spur Gears
• PSG : 0.8 Module Steel Precision Spur Gears
• PSG : 1.0 Module Steel Precision Spur Gears
• PSG : 1.25 Module Steel Precision Spur Gears
• PSG : 1.5 Module Steel Precision Spur Gears
• PSG : 2.0 Module Steel Precision Spur Gears
• PSG : 2.5 Module Steel Precision Spur Gears
• PSG : 3.0 Module Steel Precision Spur Gears
• PSG : 0.5 Module Stainless Precision Spur Gears
• PSG : 0.8 Module Stainless Precision Spur Gears
• PSG : 1.0 Module Stainless Precision Spur Gears
• PSG : 1.25 Module Stainless Precision Spur Gears
• PSG : 1.5 Module Stainless Precision Spur Gears
• PSG : 2.0 Module Stainless Precision Spur Gears
• PSG : 2.5 Module Stainless Precision Spur Gears
• PSG : 3.0 Module Stainless Precision Spur Gears
• PSG : 0.5 Module Skive Hobbed Precision Spur Gears
• PSG : 0.8 Module Skive Hobbed Precision Spur Gears
• PSG : 1.0 Module Skive Hobbed Precision Spur Gears
• PSG : 1.25 Module Skive Hobbed Precision Spur Gears
• PSG : 0.5 Module Plastic Precision Spur Gears
• PSG : 0.8 Module Plastic Precision Spur Gears
• PSG : 1.0 Module Plastic Precision Spur Gears
• PSG : 1.25 Module Plastic Precision Spur Gears
• PSG : 1.5 Module Plastic Precision Spur Gears
• PSG : 2.0 Module Plastic Precision Spur Gears
• PSG : 2.5 Module Plastic Precision Spur Gears
• PSG : 3.0 Module Plastic Precision Spur Gears
• PSG : 0.5 Module Titanium Precision Spur Gears
• PSG : 0.8 Module Titanium Precision Spur Gears
• PSG : 1.0 Module Titanium Precision Spur Gears
• PSG : 1.25 Module Titanium Precision Spur Gears
• PSG : 1.5 Module Titanium Precision Spur Gears
• PSG : 1.5 Module Cast Iron Precision Spur Gears
• PSG : 2.0 Module Cast Iron Precision Spur Gears
• PSG : 2.5 Module Cast Iron Precision Spur Gears
• PSG : 3.0 Module Cast Iron Precision Spur Gears
• Precision Anti-Backlash Spur Gears
• Precision Pinion Shafts
• Precision Gear Racks
• Precision Parallel Helical Gears
• Precision Crossed Helical Gears
• Precision Worms & Wheels
• Precision Anti-Backlash Worms & Wheels
• Precision Bevel Gears
• Commercial Gears
• Pulleys, Belts & Sprockets
• Couplings
• Linear
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PSG : 0.5 Module Steel Precision Spur Gears

Part Number	No. of Teeth Z	Ref. Dia. d	Tip Dia. da	Bore H7 di	Max Bore di	Hub Dia. BD	Backlash (mm) jt.e (max)	Backlash (mm) jt.i (min)	I Inertia kgm2	Mass kg	817M40T (28HRC)				Case Hardened 805M20 (58HRC)#
											T2 Nm n2100min-1	Cost PSG	Quantity	Add to Basket	T2 Nm n2100min-1	Cost PSG-H	Quantity	Add to Basket
PSG0.5-18	18	9.0	10.0	3	3	7	0.083	0.029	4.38 x 10-8	0.005	0.25	£10.86			0.93	£17.91
PSG0.5-19	19	9.5	10.5	4	4	8	0.076	0.037	6.10 x 10-8	0.005	0.27	£10.98			0.98	£18.11
PSG0.5-20	20	10.0	11.0	4	4	8	0.076	0.037	6.81 x 10-8	0.006	0.36	£11.19			1.11	£18.46
PSG0.5-21	21	10.5	11.5	4	4	8	0.077	0.036	7.64 x 10-8	0.006	0.37	£11.30			1.16	£18.65
PSG0.5-22	22	11.0	12.0	4	4	8	0.077	0.036	8.60 x 10-8	0.006	0.39	£11.45			1.22	£18.89
PSG0.5-23	23	11.5	12.5	4	4	8	0.077	0.036	9.69 x 10-8	0.006	0.41	£11.58			1.27	£19.12
PSG0.5-24	24	12.0	13.0	5	5	10	0.077	0.036	1.51 x 10-7	0.008	0.43	£11.72			1.33	£19.34
PSG0.5-25	25	12.5	13.5	5	5	10	0.087	0.042	1.65 x 10-7	0.009	0.44	£11.83			1.38	£19.54
PSG0.5-26	26	13.0	14.0	5	5	10	0.087	0.042	1.81 x 10-7	0.009	0.54	£12.01			1.44	£19.82
PSG0.5-27	27	13.5	14.5	5	5	10	0.087	0.042	1.98 x 10-7	0.009	0.57	£12.14			1.50	£20.03
PSG0.5-28	28	14.0	15.0	5	5	10	0.087	0.042	2.18 x 10-7	0.010	0.59	£12.26			1.55	£20.24
PSG0.5-29	29	14.5	15.5	6	6	13	0.087	0.042	3.76 x 10-7	0.013	0.61	£12.34			1.61	£20.36
PSG0.5-30	30	15.0	16.0	6	6	13	0.087	0.042	4.00 x 10-7	0.014	0.69	£12.38			1.65	£20.44
PSG0.5-32	32	16.0	17.0	6	6	13	0.087	0.042	4.57 x 10-7	0.015	0.74	£12.68			1.76	£20.93
PSG0.5-35	35	17.5	18.5	6	6	13	0.087	0.042	5.65 x 10-7	0.016	0.81	£13.11			1.93	£21.64
PSG0.5-38	38	19.0	20.0	6	8	17	0.089	0.041	1.13 x 10-7	0.026	0.87	£13.50			2.09	£22.30
PSG0.5-40	40	20.0	21.0	6	8	17	0.089	0.041	1.24 x 10-6	0.027	1.18	£13.81			2.45	£22.78
PSG0.5-42	42	21.0	22.0	6	8	17	0.089	0.041	1.37 x 10-6	0.028	1.24	£14.05			2.57	£23.19
PSG0.5-45	45	22.5	23.5	6	8	17	0.089	0.041	1.61 x 10-6	0.030	1.32	£14.49			2.75	£23.90
PSG0.5-48	48	24.0	25.0	6	8	17	0.089	0.041	1.90 x 10-6	0.032	1.41	£15.06			2.94	£24.84
PSG0.5-50	50	25.0	26.0	6	8	17	0.089	0.041	2.12 x 10-6	0.034	1.74	£15.23			3.32	£25.11
PSG0.5-52	52	26.0	27.0	6	8	17	0.097	0.046	2.38 x 10-6	0.035	1.81	£15.45			3.45	£25.47
PSG0.5-55	55	27.5	28.5	6	8	17	0.097	0.046	2.81 x 10-6	0.038	1.92	£15.75			3.65	£26.01
PSG0.5-58	58	29.0	30.0	6	8	17	0.097	0.046	3.33 x 10-6	0.040	2.02	£16.08			3.85	£26.54
PSG0.5-60	60	30.0	31.0	6	8	17	0.097	0.046	3.72 x 10-6	0.042	2.49	£16.25			4.15	£26.82
PSG0.5-62	62	31.0	32.0	8	10	20	0.098	0.044	4.72 x 10-6	0.048	2.57	£16.45			4.29	£27.15
PSG0.5-65	65	32.5	33.5	8	10	20	0.098	0.044	5.45 x 10-6	0.051	2.70	£16.81			4.50	£27.74
PSG0.5-68	68	34.0	35.0	8	10	20	0.098	0.044	6.29 x 10-6	0.054	2.82	£16.93			4.70	£27.92
PSG0.5-70	70	35.0	36.0	8	10	20	0.098	0.044	6.92 x 10-6	0.056	2.91	£17.10			4.84	£28.23
PSG0.5-72	72	36.0	37.0	8	10	20	0.098	0.044	7.61 x 10-6	0.058	2.99	£17.27			4.98	£28.49
PSG0.5-75	75	37.5	38.5	8	10	20	0.098	0.044	8.75 x 10-6	0.062	3.11	£17.40			5.19	£28.72
PSG0.5-78	78	39.0	40.0	8	10	20	0.098	0.044	1.00 x 10-5	0.065	3.24	£17.66			5.40	£29.14
PSG0.5-80	80	40.0	41.0	8	12	25	0.098	0.044	1.28 x 10-5	0.082	3.71	£17.78			5.80	£26.01
PSG0.5-82	82	41.0	42.0	8	12	25	0.098	0.044	1.38 x 10-5	0.084	3.81	£17.98			5.95	£29.66
PSG0.5-85	85	42.5	43.5	8	12	25	0.098	0.044	1.54 x 10-5	0.088	3.95	£18.15			6.16	£29.97
PSG0.5-90	90	45.0	46.0	8	12	25	0.098	0.044	1.86 x 10-5	0.095	4.18	£18.46			6.53	£30.47
PSG0.5-95	95	47.5	48.5	8	12	25	0.098	0.044	2.24 x 10-5	0.102	4.41	£18.65			6.89	£30.78
PSG0.5-100	100	50.0	51.0	10	16	30	0.098	0.044	3.00 x 10-5	0.123	4.75	£18.74			7.42	£30.91
PSG0.5-105	105	52.5	53.5	10	16	30	0.111	0.049	3.52 x 10-5	0.131	4.99	£18.98			7.79	£31.32
PSG0.5-110	110	55.0	56.0	10	16	30	0.111	0.049	4.12 x 10-5	0.139	5.22	£19.17			8.16	£31.64
PSG0.5-115	115	57.5	58.5	10	16	30	0.111	0.049	4.80 x 10-5	0.148	5.46	£19.36			8.53	£31.96
PSG0.5-120	120	60.0	61.0	10	20	35	0.111	0.049	6.11 x 10-5	0.177	5.70	£22.70			8.90	£37.45
PSG0.5-130	130	65.0	66.0	10	20	35	0.111	0.049	7.98 x 10-5	0.196	6.17	£26.04			9.65	£42.97
PSG0.5-140	140	70.0	71.0	10	20	35	0.111	0.049	1.03 x 10-4	0.217	6.65	£27.13			10.39	£44.76
PSG0.5-150	150	75.0	76.0	10	25	40	0.111	0.049	1.41 x 10-4	0.262	7.28	£29.54			11.37	£48.73
PSG0.5-160	160	80.0	81.0	10	25	40	0.111	0.049	1.77 x 10-4	0.286	7.76	£31.06			12.13	£51.26
PSG0.5-170	170	85.0	86.0	10	25	40	0.113	0.047	2.20 x 10-4	0.312	8.25	£32.80			12.89	£54.14
PSG0.5-180	180	90.0	91.0	14	30	50	0.113	0.047	2.99 x 10-4	0.385	8.73	£33.35			13.64	£55.03
PSG0.5-190	190	95.0	96.0	14	30	50	0.113	0.047	3.60 x 10-4	0.414	9.22	£34.99			14.40	£57.74
PSG0.5-200	200	100.0	101.0	14	30	50	0.113	0.047	4.31 x 10-4	0.444	9.80	£36.40			15.32	£60.06
PSG0.5-210	210	105.0	106.0	14	30	50	0.134	0.064	5.14 x 10-4	0.475	10.29	£37.50			16.08	£61.87
PSG0.5-220	220	110.0	111.0	16	40	60	0.134	0.064	6.61 x 10-4	0.570	10.78	£39.71			16.85	£65.51
PSG0.5-230	230	115.0	116.0	16	40	60	0.134	0.064	7.71 x 10-4	0.605	11.27	£40.95			17.62	£67.58
PSG0.5-240	240	120.0	121.0	16	40	60	0.134	0.064	8.95 x 10-4	0.641	11.76	£42.48			18.38	£70.09
PSG0.5-250	250	125.0	126.0	16	40	60	0.136	0.062	1.04 x 10-3	0.679	12.25	£43.67			19.15	£72.05

DIN 58405 Tooth Thickness tol.
# Quality Grades and Tolerances stated prior to heat treatment processes.
n Efficiency approx. 98%

Options
- Different number of teeth
- Modifications available on request: Other material, boring out, keyways, tapped holes, pin holes.

Accessories
- Clamping sets, screws, keys, dowel pins...

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