Specifications Precision grade KHK R 001 grade 5 Reference section for teeth Normal plane Normal pressure angle 20 Gear teeth Standard full depth Helix angle 15 Material S45C-D (Carbon steel) Heat treatment Stress relief annealing Core hardness HRB8995 Surface hardness Surface treatment Black oxide Surface finish Hobbed Datum reference surface for gear cutting Bottom surface

R1 R5 R6 R7 R8

Module 23

Catalog No.	Module	Hand of thread	Total length	Face width	Height	Height to pitch line	Effective No. of teeth	Shape	Allowable force (kgf)		Allowable force (N)		Weight (kgf)	Catalog No.
	m		A	B	C	D			Bending strength	Surface durability	Bending strength	Surface durability
SRH2-100R [ DXF | DWG | 3D CAD] SRH2-100L [ DXF | DWG | 3D CAD]	2	R L	95	25	25	23	12	R1	480.7	160	4714	1569	0.36	SRH2-100R SRH2-100L
SRH3-100R [ DXF | DWG | 3D CAD] SRH3-100L [ DXF | DWG | 3D CAD]	3	R L	95	35	35	32	7	R1	1010	358.7	9905	3518	0.71	SRH3-100R SRH3-100L
SRH2-500R [ DXF | DWG | 3D CAD] SRH2-500L [ DXF | DWG | 3D CAD]	2	R L	505	25	25	23	76	R1	480.7	160	4714	1569	1.9	SRH2-500R SRH2-500L
SRH3-500R [ DXF | DWG | 3D CAD] SRH3-500L [ DXF | DWG | 3D CAD]	3	R L	505	35	35	32	50	R1	1010	358.7	9905	3518	3.8	SRH3-500R SRH3-500L
SRH2-1000R [ DXF | DWG | 3D CAD] SRH2-1000L [ DXF | DWG | 3D CAD]	2	R L	1010	25	25	23	154	R1	480.7	160	4714	1569	3.6	SRH2-1000R SRH2-1000L
SRH3-1000R [ DXF | DWG | 3D CAD] SRH3-1000L [ DXF | DWG | 3D CAD]	3	R L	1010	35	35	32	102	R1	1010	358.7	9905	3518	7.6	SRH3-1000R SRH3-1000L

Module 23 Type F

Catalog No.	Module	Hand of thread	Total length	Face width	Height	Height to pitch line	Effective No. of teeth	Shape	Allowable force (kgf)		Allowable force (N)		Weight (kgf)	Catalog No.
	m		A	B	C	D			Bending strength	Surface durability	Bending strength	Surface durability
SRHF2-1000R [ DXF | DWG | 3D CAD] SRHF2-1000L [ DXF | DWG | 3D CAD]	2	R L	995.24	25	25	153	153	R5 R6	480.7	160	4714	1569	3.6	SRHF2-1000R SRHF2-1000L
SRHF3-1000R [ DXF | DWG | 3D CAD] SRHF3-1000L [ DXF | DWG | 3D CAD]	3	R L	995.24	35	35	102	102	R5 R6	1010	358.7	9905	3518	7.5	SRHF3-1000R SRHF3-1000L

Module 23 Type D

Catalog No.	Module	Hand of thread	Total length	Face width	Height	Height to pitch line	Effective No. of teeth	Mounting hole dimensions			No. of mounting holes	Mounting screw size	Counterbore dimensions			Shape	Allowable force (kgf)		Allowable force (N)		Weight (kgf)	Catalog No.
	m		A	B	C	D		E	F	G			H	I	J		Bending strength	Surface durability	Bending strength	Surface durability
SRHFD2-1000R [ DXF | DWG | 3D CAD] SRHFD2-1000L [ DXF | DWG | 3D CAD]	2	R L	995.24	25	25	23	153	10	47.62	180	6	M6	7	11	7	R7 R8	480.7	160	4714	1569	3.5	SRHFD2-1000R SRHFD2-1000L
SRHFD3-1000R [ DXF | DWG | 3D CAD] SRHFD3-1000L [ DXF | DWG | 3D CAD]	3	R L	995.24	35	35	32	102	14	47.62	180	6	M10	10.8	17.5	11	R7 R8	1010	358.7	9905	3518	7.3	SRHFD3-1000R SRHFD3-1000L

CAUTION: Ordering the correct helix is important. For a right hand pinion, use a left hand rack and vise versa.

NOTE: The allowable torques shown in the table are 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. All dimensions shown in the above table(s) are listed in millimeters unless otherwise specified.

USEFUL HINT: It is recommended that an SH type pinion be used with these racks when building a rack and pinion set. When using helical gears, the axial thrust force must be taken into consideration. Therefore, choose the bearings that can resist the axial load. For further information, please consult the technical section.

	| Home | QTC Quote Request Form | US & Canada Catalog Request Form | International Catalog Request Form | Q420 Index | Recent Ads | Kohara Gear Homepage Quality Transmission Components E-Mail: qtcsupport@qtcgears.com Phone: 516-437-6700 Fax: 800-737-7436 or 516-328-3343
Related Companies: