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115
Hardened Spur Gears - 24, 32 & 48 Pitch
S705ZY-D0832H05
S705ZY-D0832H04
S705ZY-D0832H03
Bore
Set Screw
Catalog Number
Set Screw
Length
1/4
3/8
1/2
5/16
1/4
3/16
See index for other sizes of available half dog set screws.
AGMA 10
20° PRESSURE ANGLE
Fig. 1
HALF DOG
SET SCREW MOUNTING
(Medium Torque All Bores)
Fig. 2
SPIROL PIN MOUNTING
(Medium and High Torque
for 1/2" Bores)
1/8 DRILL
LOCTITE 242
OR EQUIVALENT
S7220Y-13112
SPIROL PIN
APPROPRIATE
DEPTH
PREDRILL
FINAL ASSEMBLY
#35 DRILL
.115DIA.
.109
.05 MIN.
LOCTITE 242
OR EQUIVALENT
SEE ABOVE FOR
PART NUMBER
PREDRILL
FINAL ASSEMBLY
Sterling Hardened Spur Gears (AGMA 10) are made of tough alloy steel
heat-treated by a proprietary diffusion coating process, which gives high surface
hardness and very good corrosion resistance. The core hardness is RC38.
The surface hardness is RC55 or higher. The finish is black due to the final heat
treatment and it may be omitted from the bore. The combination of good quality,
tough core and high surface hardness, make these gears a very attractive
alternative to the much more expensive hardened and ground gears.
The corrosion resistant surface combined with appropriate lube make
them work in any harsh environment, under extremely heavy loads.
The gears have two tapped #8-32 UNC holes located at 90°. Two cup point
18-8 stainless steel set screws are supplied with the gears. The suggested
mounting configurations for higher torque are given in figures 1 and 2.
For half dog set screw mounting (Fig. 1) the following set screws can be used:
.130
.124DIA.