Metric Ground Helical Racks Module 1~3

Quality Transmission is the largest North American supplier of off-the-shelf metric gearing.

Specifications
Precision grade	KHK R 001 grade 1	Heat treatment	Normalizing only
Reference section gear	Rotating plane	Core hardness	HB250285
Gear teeth	Standard full depth	Surface hardness	HB250285
Normal pressure angle	20	Surface treatment	-
Helix angle	2130'	Surface finish	Ground
Material	SCM440 (Alloy steel)	Datum reference surface for gear grinding	Bottom surface

R1

R5(RH)

R6(LH)

Module 13 Joining Gauge

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.
Catalog No.	m	Hand of thread	A	B	C	D	Effective No. of teeth	Shape	Bending strength	Surface durability	Bending strength	Surface durability	Weight (kgf)	Catalog No.
KRHG1-100R [ DXF\| DWG \| 3D CAD] KRHG1-100L [ DXF\| DWG \| 3D CAD]	1	R L	98	8	15	14	28	R1	131	97.39	1285	955.1	0.088	KRHG1-100R KRHG1-100L
KRHG1.5-100R [ DXF\| DWG \| 3D CAD] KRHG1.5-100L [ DXF\| DWG \| 3D CAD]	1.5	R L	101	12	20	18.5	18	R1	294.8	242.7	2891	2380	0.17	KRHG1.5-100R KRHG1.5-100L
KRHG2-100R [ DXF\| DWG \| 3D CAD] KRHG2-100L [ DXF\| DWG \| 3D CAD]	2	R L	98	16	25	23	12	R1	524.2	431.5	5141	4232	0.29	KRHG2-100R KRHG2-100L
KRHG2.5-100R [ DXF\| DWG \| 3D CAD] KRHG2.5-100L [ DXF\| DWG \| 3D CAD]	2.5	R L	100	20	30	27.5	9	R1	819	674.2	8032	6612	0.43	KRHG2.5-100R KRHG2.5-100L
KRHG3-100R [ DXF\| DWG \| 3D CAD] KRHG3-100L [ DXF\| DWG \| 3D CAD]	3	R L	102	25	35	32	7	R1	1228	1000	12040	9807	0.63	KRHG3-100R KRHG3-100L

Module 13 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.
Catalog No.	m	Hand of thread	A	B	C	D	Effective No. of teeth	Shape	Bending strength	Surface durability	Bending strength	Surface durability	Weight (kgf)	Catalog No.
KRHGF1-500R [ DXF\| DWG \| 3D CAD] KRHGF1-500L [ DXF\| DWG \| 3D CAD]	1	R L	499.51	8	15	14	159	R5 R6	131	97.39	1285	955.1	0.44	KRHGF1-500R KRHGF1-500L
KRHGF1.5-500R [ DXF\| DWG \| 3D CAD] KRHGF1.5-500L [ DXF\| DWG \| 3D CAD]	1.5	R L	499.51	12	20	18.5	106	R5 R6	294.8	242.7	2891	2380	0.87	KRHGF1.5-500R KRHGF1.5-500L
KRHGF2-1000R [ DXF\| DWG \| 3D CAD] KRHGF2-1000L [ DXF\| DWG \| 3D CAD]	2	R L	1005.31	16	25	23	160	R5 R6	524.2	431.5	5141	4232	2.9	KRHGF2-1000R KRHGF2-1000L
KRHGF2.5-1000R [ DXF\| DWG \| 3D CAD] KRHGF2.5-1000L [ DXF\| DWG \| 3D CAD]	2.5	R L	1005.31	20	30	27.5	128	R5 R6	819	674.2	8032	6612	4.34	KRHGF2.5-1000R KRHGF2.5-1000L
KRHGF3-1000R [ DXF\| DWG \| 3D CAD] KRHGF3-1000L [ DXF\| DWG \| 3D CAD]	3	R L	999.03	25	35	32	106	R5 R6	1228	1000	12040	9807	6.27	KRHGF3-1000R KRHGF3-1000L

*CAUTION:*	The Joining Gauge rack for helical racks must have the opposite direction of helix from the joined rack sections.
*CAUTION:*	Please use the KHG series of ground helical gears to mate with these racks. RH and LH mate as a pair.
*CAUTION:*	Helical racks produce side thrust forces. Please see the application notes in this catalog
*NOTE:*	The allowable transmitted force in the table are calculated according to JGMA Standards 401-01 and 402-01.
*USEFUL HINT:*	The four exterior surfaces of these racks are precision ground. Unless the mounting base is also accurate, the precision performance can not be achieved. Please study the "Hints for Rack Assembly" section before assembling.

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