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 S3

Module 1

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
SS1-15 [ DXF| DWG| 3D CAD] SS1-16 [ DXF| DWG| 3D CAD] SS1-17 [ DXF| DWG| 3D CAD] SS1-18 [ DXF| DWG| 3D CAD] SS1-19 [ DXF| DWG| 3D CAD]	15 16 17 18 19	8 8 8 8 8	17 18 19 20 21	15 16 17 18 19	17 18 19 20 21	10 10 10 10 10	20 20 20 20 20	30 30 30 30 30	S3 S3 S3 S3 S3	0.3767 0.4174 0.4587 0.5006 0.5431	0.0178 0.0205 0.0234 0.0265 0.0298	3.694 4.093 4.498 4.909 5.326	0.1746 0.201 0.2295 0.2599 0.2922	0.080.18 0.080.18 0.080.18 0.080.18 0.080.18	0.03 0.04 0.05 0.05 0.06	SS1-15 SS1-16 SS1-17 SS1-18 SS1-19
SS1-20 [ DXF| DWG| 3D CAD] SS1-21 [ DXF| DWG| 3D CAD] SS1-22 [ DXF| DWG| 3D CAD] SS1-23 [ DXF| DWG| 3D CAD] SS1-24 [ DXF| DWG| 3D CAD]	20 21 22 23 24	8 8 8 8 8	16 17 18 18 20	20 21 22 23 24	22 23 24 25 26	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	0.586 0.6293 0.6731 0.7172 0.7616	0.0334 0.0371 0.0411 0.0454 0.05	5.747 6.171 6.601 7.033 7.469	0.3275 0.3638 0.403 0.4452 0.4903	0.080.18 0.120.22 0.120.22 0.120.22 0.120.22	0.03 0.03 0.04 0.04 0.05	SS1-20 SS1-21 SS1-22 SS1-23 SS1-24
SS1-25 [ DXF| DWG| 3D CAD] SS1-26 [ DXF| DWG| 3D CAD] SS1-27 [ DXF| DWG| 3D CAD] SS1-28 [ DXF| DWG| 3D CAD] SS1-29 [ DXF| DWG| 3D CAD]	25 26 27 28 29	8 8 8 8 8	20 22 22 22 24	25 26 27 28 29	27 28 29 30 31	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	0.8064 0.8514 0.8967 0.9423 0.9881	0.0547 0.0594 0.0644 0.0695 0.0749	7.908 8.349 8.794 9.241 9.69	0.5364 0.5825 0.6315 0.6816 0.7345	0.120.22 0.120.22 0.120.22 0.120.22 0.120.22	0.05 0.06 0.06 0.07 0.08	SS1-25 SS1-26 SS1-27 SS1-28 SS1-29
SS1-30 [ DXF| DWG| 3D CAD] SS1-32 [ DXF| DWG| 3D CAD] SS1-34 [ DXF| DWG| 3D CAD] SS1-35 [ DXF| DWG| 3D CAD] SS1-36 [ DXF| DWG| 3D CAD]	30 32 34 35 36	10 10 10 10 10	25 26 26 26 28	30 32 34 35 36	32 34 36 37 38	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	1.034 1.127 1.22 1.267 1.314	0.0805 0.0922 0.1048 0.1114 0.1183	10.14 11.05 11.96 12.42 12.89	0.7894 0.9042 1.028 1.092 1.16	0.120.22 0.120.22 0.120.22 0.120.22 0.120.22	0.08 0.1 0.11 0.11 0.12	SS1-30 SS1-32 SS1-34 SS1-35 SS1-36
SS1-38 [ DXF| DWG| 3D CAD] SS1-40 [ DXF| DWG| 3D CAD] SS1-42 [ DXF| DWG| 3D CAD] SS1-44 [ DXF| DWG| 3D CAD] SS1-45 [ DXF| DWG| 3D CAD]	38 40 42 44 45	10 10 10 10 10	32 35 35 35 35	38 40 42 44 45	40 42 44 46 47	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	1.408 1.503 1.598 1.694 1.742	0.1326 0.1478 0.1638 0.1807 0.1894	13.81 14.74 15.67 16.61 17.08	1.3 1.449 1.606 1.772 1.857	0.120.22 0.120.22 0.140.26 0.140.26 0.140.26	0.14 0.16 0.17 0.18 0.18	SS1-38 SS1-40 SS1-42 SS1-44 SS1-45
SS1-46 [ DXF| DWG| 3D CAD] SS1-48 [ DXF| DWG| 3D CAD] SS1-50 [ DXF| DWG| 3D CAD] SS1-52 [ DXF| DWG| 3D CAD] SS1-54 [ DXF| DWG| 3D CAD]	46 48 50 52 54	10 10 10 10 10	35 35 35 35 35	46 48 50 52 54	48 50 52 54 56	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	1.79 1.887 1.983 2.08 2.178	0.1984 0.217 0.2365 0.2568 0.278	17.55 18.5 19.45 20.4 21.36	1.946 2.128 2.319 2.518 2.726	0.140.26 0.140.26 0.140.26 0.140.26 0.140.26	0.19 0.2 0.22 0.23 0.24	SS1-46 SS1-48 SS1-50 SS1-52 SS1-54
SS1-55 [ DXF| DWG| 3D CAD] SS1-56 [ DXF| DWG| 3D CAD] SS1-58 [ DXF| DWG| 3D CAD] SS1-60 [ DXF| DWG| 3D CAD] SS1-62 [ DXF| DWG| 3D CAD]	55 56 58 60 62	10 10 10 10 10	35 35 35 35 40	55 56 58 60 62	57 58 60 62 64	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	2.226 2.275 2.373 2.47 2.568	0.2889 0.3 0.3229 0.3467 0.3714	21.83 22.31 23.27 24.22 25.18	2.833 2.942 3.167 3.4 3.642	0.140.26 0.140.26 0.140.26 0.140.26 0.140.26	0.25 0.26 0.27 0.28 0.3	SS1-55 SS1-56 SS1-58 SS1-60 SS1-62
SS1-64 [ DXF| DWG| 3D CAD] SS1-65 [ DXF| DWG| 3D CAD] SS1-66 [ DXF| DWG| 3D CAD] SS1-68 [ DXF| DWG| 3D CAD] SS1-70 [ DXF| DWG| 3D CAD]	64 65 66 68 70	10 10 10 10 10	40 40 40 40 40	64 65 66 68 70	66 67 68 70 72	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	2.667 2.716 2.765 2.863 2.962	0.3969 0.41 0.4233 0.4506 0.4788	26.15 26.63 27.12 28.08 29.05	3.892 4.021 4.151 4.419 4.695	0.140.26 0.140.26 0.140.26 0.140.26 0.140.26	0.34 0.35 0.36 0.38 0.4	SS1-64 SS1-65 SS1-66 SS1-68 SS1-70
SS1-72 [ DXF| DWG| 3D CAD] SS1-75 [ DXF| DWG| 3D CAD] SS1-76 [ DXF| DWG| 3D CAD] SS1-80 [ DXF| DWG| 3D CAD] SS1-84 [ DXF| DWG| 3D CAD]	72 75 76 80 84	10 10 10 10 10	40 40 40 40 40	72 75 76 80 84	74 77 78 82 86	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	3.061 3.209 3.258 3.457 3.655	0.508 0.5538 0.5696 0.6349 0.7038	30.02 31.47 31.95 33.9 35.84	4.982 5.431 5.586 6.226 6.902	0.140.26 0.140.26 0.140.26 0.140.26 0.140.26	0.41 0.43 0.45 0.49 5.53	SS1-72 SS1-75 SS1-76 SS1-80 SS1-84
SS1-85 [ DXF| DWG| 3D CAD] SS1-88 [ DXF| DWG| 3D CAD] SS1-90 [ DXF| DWG| 3D CAD] SS1-95 [ DXF| DWG| 3D CAD] SS1-96 [ DXF| DWG| 3D CAD]	85 88 90 95 96	10 10 10 10 10	40 40 40 40 40	85 88 90 95 96	87 90 92 97 98	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	3.705 3.854 3.953 4.202 4.252	0.7216 0.7765 0.8142 0.9125 0.9328	36.33 37.79 38.77 41.21 41.7	7.076 7.615 7.984 8.948 9.148	0.160.32 0.160.32 0.160.32 0.160.32 0.160.32	0.55 0.57 0.59 0.66 0.67	SS1-85 SS1-88 SS1-90 SS1-95 SS1-96
SS1-100 [ DXF| DWG| 3D CAD] SS1-110 [ DXF| DWG| 3D CAD] SS1-120 [ DXF| DWG| 3D CAD] SS1-150 [ DXF| DWG| 3D CAD] SS1-200 [ DXF| DWG| 3D CAD]	100 110 120 150 200	10 15 15 20 20	40 50 50 120 160	100 110 120 150 200	102 112 122 152 202	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	4.452 4.952 5.452 6.959 7.291	1.017 1.242 1.495 2.411 3.424	43.66 48.56 53.47 68.24 71.5	9.973 12.18 14.66 23.64 33.58	0.160.32 0.160.32 0.160.32 0.160.32 0.2 0.4	0.7 0.87 1 2.23 4	SS1-100 SS1-110 SS1-120 SS1-150 SS1-200

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: If the tooth strength is not sufficient, it can be increased by approximately four times to HRC 4853 by induction hardening the tooth surfaces.

 

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