Specifications Precision grade KHK R 001 grade 4 Gear teeth Standard full depth Pressure angle 20 Material Free cutting brass (C3604BD-F) Heat treatment - Core hardness more than HV80 Surface hardness Surface treatment - Surface finish Hobbed Datum reference surface for gear cutting Bottom surface

R1

Module 0.51.25

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Catalog No.	Module	Total length	Face width	Height	Height to pitch line	Effective No. of teeth	Shape	Allowable force (kgf)		Allowable force (N)		Weight (kgf)
	m	A	B	C	D			Bending strength	Surface durability	Bending strength	Surface durability
BSR0.5-300 [ DXF| DWG | 3D CAD] BSR0.8-300 [ DXF| DWG | 3D CAD] BSR1-300 [ DXF| DWG | 3D CAD] BSR1.25-300 [ DXF| DWG | 3D CAD]	0.5 0.8 1 1.25	303 303 303 303	3 4 6 8	9 10 10 10	8.5 9.2 9 8.75	190 118 94 75	R1 R1 R1 R1	2.931 6.254 11.73 19.54	- - - -	28.74 61.33 115 191.6	- - - -	0.06 0.09 0.13 0.16

CAUTION: The mating pinions for 0.5 and 0.8 module racks are available in BSS brass spur gears and DS injection molded spur gears.

NOTE: The allowable transmission forces are calculated according to JGMA Standards 401-01 and 402-01. All dimensions shown in the above table(s) are listed in millimeters unless otherwise specified.