Gears
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Gears

Gears transmit power between rotating shafts while adjusting speed or torque. Robotics teams use spur, bevel, and planetary designs for different mechanical needs. Choosing the correct material and pitch helps optimize strength, efficiency, and smooth operation in any subsystem.

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Product TypeBoreDiametral PitchMaterialTeeth Vendors
57 Sport RS-500 Pinion
57 Sport RS-500 Pinion
Spur
0.125"
36.29
Steel
16
AndyMark
57 Sport RS-700 Pinion
57 Sport RS-700 Pinion
Spur
5mm
36.29
Steel
16
AndyMark
AM 1/2" Hex Bore
AM 1/2" Hex Bore
Spur
0.5" hex
20
Steel
18
19
20
21
24
25
28
29
30
32
34
35
36
38
40
43
45
46
48
50
52
56
AndyMark
AM 1/2" Hex Bore Aluminum
AM 1/2" Hex Bore Aluminum
Spur
0.5" hex
20
Aluminum
35
40
43
45
50
56
AndyMark
AM 3/8" Hex Bore 20dp
AM 3/8" Hex Bore 20dp
Spur
0.375" hex
20
Steel
14
15
16
17
18
19
20
21
24
25
28
29
30
32
34
35
36
38
40
43
45
46
48
50
52
56
AndyMark
AM 3/8" Hex Bore 20dp Aluminum
AM 3/8" Hex Bore 20dp Aluminum
Spur
0.375" hex
20
Aluminum
35
43
45
50
56
AndyMark
AM 3/8" Hex Bore 32dp
AM 3/8" Hex Bore 32dp
Spur
0.375" hex
32
Steel
19
20
32
35
40
45
60
85
AndyMark
AM 3/8" Hex Bore Bevel
AM 3/8" Hex Bore Bevel
Bevel
0.375" hex
20.32
Steel
40
AndyMark
AM 5mm Bore
AM 5mm Bore
Spur
5mm
42.3
Steel
17
AndyMark
AM 8mm Bore 32dp
AM 8mm Bore 32dp
Spur
8mm
32
Steel
15
AndyMark
AM 8mm Bore Bevel
AM 8mm Bore Bevel
Bevel
8mm w/ key
20.32
Steel
22
AndyMark
AM Bolt Circle Bore
AM Bolt Circle Bore
Spur
1.125"
1.875" bolt circle
20
Steel
50
AndyMark
CIM Sport Pinion
CIM Sport Pinion
Spur
8mm
36.29
Steel
16
AndyMark
FIRST STEAMWORKS
FIRST STEAMWORKS
Spur
1"
1
Plastic
10
AndyMark
NeveRest Motor Pinion
NeveRest Motor Pinion
Helical
3mm
50.83
[Not listed]
12
AndyMark
PI 12t 775 Pinion
PI 12t 775 Pinion
Spur
5mm
32
Steel
12
Plummer Robotics
RedLine Pinion
RedLine Pinion
Spur
5mm
32
Steel
12
AndyMark
REV ION 20DP Hex Bore
REV ION 20DP Hex Bore
Spur
0.5" hex
20
Steel
18
20
24
28
30
32
34
36
40
50
52
60
64
68
80
REV Robotics
REV ION 20DP MAXSpline
REV ION 20DP MAXSpline
Spur
MAXSpline
20
Steel
32
36
40
48
52
54
56
58
60
64
68
80
REV Robotics
Servo
Servo
Spur
24T spline
32
Brass
12
AndyMark
WCP 20DP 1/2" Hex Aluminum
WCP 20DP 1/2" Hex Aluminum
Spur
0.5" hex
20
Aluminum
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
West Coast Products
WCP 20DP 1/2" Hex Steel
WCP 20DP 1/2" Hex Steel
Spur
0.5" hex
20
Steel
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
West Coast Products
WCP 20DP 3/8" Hex Aluminum
WCP 20DP 3/8" Hex Aluminum
Spur
0.375" hex
20
Aluminum
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
West Coast Products
WCP 20DP 3/8" Hex Steel
WCP 20DP 3/8" Hex Steel
Spur
0.375" hex
20
Steel
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
West Coast Products
WCP 20DP SplineXS
WCP 20DP SplineXS
Spur
SplineXS
20
Steel
8
9
10
11
12
13
14
15
16
West Coast Products
WCP 32DP
WCP 32DP
Spur
0.375" hex
32
Steel
20
40
60
80
West Coast Products
WCP 32DP Pinion
WCP 32DP Pinion
Spur
SplineXS
32
Steel
15
West Coast Products
WCP Pocketed
WCP Pocketed
Spur
0.5" hex
20
Aluminum
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
West Coast Products
WCP SplineXL Aluminum
WCP SplineXL Aluminum
Spur
SplineXL
20
Aluminum
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
West Coast Products
WCP SplineXL Steel
WCP SplineXL Steel
Spur
SplineXL
20
Steel
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
West Coast Products

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