SPIRAL MITRE GEARS
For the transmission of equal shaft speeds at right angles.

8620 grade steel
(suitable for case hardening)
Supplied in untreated condition.
All dimensions in inches.

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stock gears index

Cat. No.

Pitch

Teeth

P.D.

Face

Bore
B

Through
Boss D.

M.D

Boss
Diam.

O.D. (app)

SPM 103

10

20

2.000

0.44

0.75

1.34

2

1.63

2.12

SPM 104

10

25

2.500

0.57

0.88

1.63

2.44

2

2.62

SPM 105

7

21

3.000

0.68

1

1.78

2.75

2.25

3.17

SPM 106

8

28

3.500

0.75

1.25

2.08

3.25

2.5

3.65

SPM 118

6

24

4.000

1.00

1

2.39

3.63

3

4.20

SPM 108

5

25

5.000

1.14

1.38

3.00

4.63

3.5

5.24