Specifications Precision grade JIS Grade N8 (JIS B 1702-1:1998) JIS Grade 4 (JIS B 1702:1976) Core hardness HB165194 Gear teeth Standard full depth Surface hardness Pressure angle 20 Surface treatment Black oxide Material S45C Surface finish Hobbed Heat treatment - Datum reference surface for gear cutting Bore

S1

Module 6

Catalog No.	No. of teeth	Bore	Hub dia.	Pitch dia.	Outside dia.	Face width	Hub width	Total length	Shape	Allowable torque(kgfm)		Allowable torque(Nm)		Backlash (mm)	Weight (kgf)	Catalog No.
	z	AH7	B	C	D	E	F	G		Bending strength	Surface durability	Bending strength	Surface durability
SS6-12 [ DXF| DWG| 3D CAD] SS6-13 [ DXF| DWG| 3D CAD] SS6-14 [ DXF| DWG| 3D CAD] SS6-15 [ DXF| DWG| 3D CAD] SS6-16 [ DXF| DWG| 3D CAD]	12 13 14 15 16	25 25 25 25 25	55 58 60 70 75	72 78 84 90 96	84 90 96 102 108	60 60 60 60 60	28 28 28 28 28	88 88 88 88 88	S1 S1 S1 S1 S1	56.05 64.3 72.75 81.38 90.16	2.729 3.306 3.915 4.58 5.299	549.7 630.6 713.4 798.1 884.2	26.76 32.42 38.39 44.91 51.96	0.240.48 0.240.48 0.240.48 0.240.48 0.240.48	2 2.5 2.8 3.4 3.9	SS6-12 SS6-13 SS6-14 SS6-15 SS6-16
SS6-17 [ DXF| DWG| 3D CAD] SS6-18 [ DXF| DWG| 3D CAD] SS6-19 [ DXF| DWG| 3D CAD] SS6-20 [ DXF| DWG| 3D CAD] SS6-21 [ DXF| DWG| 3D CAD]	17 18 19 20 21	25 25 25 25 28	78 80 90 100 105	102 108 114 120 126	114 120 126 132 138	60 60 60 60 60	28 28 28 28 28	88 88 88 88 88	S1 S1 S1 S1 S1	99.09 108.1 117.3 126.6 135.9	6.073 6.902 7.791 8.754 9.777	971.7 1060 1150 1242 1333	59.56 67.68 76.4 85.85 95.88	0.240.48 0.240.48 0.240.48 0.240.48 0.260.56	4.4 5 5.8 6.5 7.5	SS6-17 SS6-18 SS6-19 SS6-20 SS6-21
SS6-22 [ DXF| DWG| 3D CAD] SS6-23 [ DXF| DWG| 3D CAD] SS6-24 [ DXF| DWG| 3D CAD] SS6-25 [ DXF| DWG| 3D CAD] SS6-26 [ DXF| DWG| 3D CAD]	22 23 24 25 26	28 28 28 28 28	110 115 120 125 130	132 138 144 150 156	144 150 156 162 168	60 60 60 60 60	28 28 28 28 28	88 88 88 88 88	S1 S1 S1 S1 S1	145.4 154.9 164.5 174.2 183.9	10.86 12 13.2 14.46 15.73	1426 1519 1613 1708 1803	106.5 117.7 129.4 141.8 154.3	0.260.56 0.260.56 0.260.56 0.260.56 0.260.56	8.1 8.9 9.8 10.5 11.4	SS6-22 SS6-23 SS6-24 SS6-25 SS6-26
SS6-27 [ DXF| DWG| 3D CAD] SS6-28 [ DXF| DWG| 3D CAD] SS6-30 [ DXF| DWG| 3D CAD] SS6-32 [ DXF| DWG| 3D CAD] SS6-34 [ DXF| DWG| 3D CAD]	27 28 30 32 34	28 28 30 30 30	135 140 150 150 150	162 168 180 192 204	174 180 192 204 216	60 60 60 60 60	28 28 28 23 23	88 88 88 83 83	S1 S1 S1 S1 S1	193.7 203.5 223.4 202.8 219.6	17.04 18.42 21.33 20.38 23.22	1900 1996 2191 1989 2154	167.1 180.6 209.2 199.9 227.7	0.260.56 0.260.56 0.260.56 0.260.56 0.260.56	12.1 12.7 15.1 18 19	SS6-27 SS6-28 SS6-30 SS6-32 SS6-34
SS6-35 [ DXF| DWG| 3D CAD] SS6-36 [ DXF| DWG| 3D CAD] SS6-38 [ DXF| DWG| 3D CAD] SS6-40 [ DXF| DWG| 3D CAD] SS6-42 [ DXF| DWG| 3D CAD]	35 36 38 40 42	30 30 30 30 40	150 150 150 150 150	210 216 228 240 252	222 228 240 252 264	60 60 60 60 60	23 23 23 23 23	83 83 83 83 83	S1 S1 S1 S1 S1	228 236.5 253.5 270.6 287.7	24.72 26.27 29.51 32.95 36.6	2236 2319 2486 2654 2821	242.4 257.6 289.4 323.1 358.9	0.260.56 0.260.56 0.260.56 0.260.56 0.30.64	19 22 23 24 27	SS6-35 SS6-36 SS6-38 SS6-40 SS6-42
SS6-44 [ DXF| DWG| 3D CAD] SS6-45 [ DXF| DWG| 3D CAD] SS6-46 [ DXF| DWG| 3D CAD] SS6-48 [ DXF| DWG| 3D CAD] SS6-50 [ DXF| DWG| 3D CAD]	44 45 46 48 50	40 40 40 40 40	150 180 180 180 180	264 270 276 288 300	276 282 288 300 312	60 60 60 60 60	23 23 23 23 23	83 83 83 83 83	S1 S1 S1 S1 S1	304.9 313.6 322.2 339.6 357	40.45 42.45 44.5 48.77 53.23	2990 3075 3160 3330 3501	396.7 416.3 436.4 478.3 522	0.30.64 0.30.64 0.30.64 0.30.64 0.30.64	30 31 34 35 37	SS6-44 SS6-45 SS6-46 SS6-48 SS6-50

NOTE : The allowable torques shown in the table are the calculated values according to JGMA Standards 401-01 and 402-01. The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

USEFUL HINT: There are three methods of measuring tooth thickness; a) chordal thickness using a caliper, b) span measurement with a special micrometer and c) measurement over pins using a conventional micrometer.

 

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