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 0.8

Catalog No.	Module	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.
	m	z	AH7	B	C	D	E	F	G		Bending strength	Surface durability	Bending strength	Surface durability
SSY0.8-20 [ DXF| DWG| 3D CAD] SSY0.8-25 [ DXF| DWG| 3D CAD] SSY0.8-30 [ DXF| DWG| 3D CAD] SSY0.8-40 [ DXF| DWG| 3D CAD] SSY0.8-50 [ DXF| DWG| 3D CAD]	0.8 0.8 0.8 0.8 0.8	20 25 30 40 50	5 5 5 5 5	13.5 17 20 25 25	16 20 24 32 40	17.6 21.6 25.6 33.6 41.6	4 4 4 4 4	8 8 8 8 8	12 12 12 12 12	S1 S1 S1 S1 S1	0.15 0.207 0.265 0.385 0.508	0.0087 0.0137 0.0201 0.0369 0.0591	1.471 2.025 2.596 3.774 4.98	0.085 0.134 0.197 0.362 0.58	0.060.16 0.10.2 0.10.2 0.10.2 0.120.24	0.013 0.022 0.032 0.054 0.068	SSY0.8-20 SSY0.8-25 SSY0.8-30 SSY0.8-40 SSY0.8-50

CAUTION: Due to the thin face width, if you wish to perform secondary operations on these gears, please use care to avoid creating side runout and deformation. Be especially careful if you heat treat these gears as there is strong possibility of warping these gears.

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.

 

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