Polyketone Resin Plastic Bevel Gears Ratio 1:1 – 5:1
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Polyketone resin plastic bevel gears with ratios from 1:1 to 5:1 are high-performance components designed for efficient power transmission at a 90-degree shaft angle. These gears, typically die-cast from ivory-colored polyketone (PK), offer superior wear resistance, low friction, and a longer lifespan compared to traditional materials like polyacetal (POM) or nylon, even without lubrication. They operate effectively in temperatures from -40°C to +140°C and are suitable for use in wet environments due to low moisture absorption and excellent chemical resistance.
Available in modules ranging from 1 to 3, with machined bores from module 1.5, these gears are sold individually, requiring two matching gears of the same module and ratio for proper operation. For a 1:1 ratio, two gears with identical tooth counts are needed, while uneven ratios like 5:1 require gears with different tooth counts. Their high abrasion resistance and tribological properties make them ideal for precision mechanics and machine-building applications.
Polyketone Resin Plastic Bevel Gear Ratio 1:1
Module
Numberof teeth
da
d
ND
NL
L1
L
S
b
B
E
Torque*
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Ncm
g
0,5
16
8,7
8
7
6
8
8
6,6
2
3
10,5
0,95
0,27
1
16
17,6
16
12
8
13,6
13,6
10,6
4,7
5
18,4
8,7
1,8
1
30
31,4
30
15
7,4
12,9
15,3
10,8
7,4
6
24,8
61
5,4
1,5
16
26,4
24
18,5
10
16,2
18,4
14,4
7
8
25,8
31
5,4
2
16
34,9
32
21,9
9,6
18,3
21,2
14,9
10
10
30,4
77
9,7
2,5
16
43,5
40
25,2
11,5
22,9
25,5
18,2
12,3
12
37
152
17,9
3
16
52,3
48
28,8
13,2
25,8
29,2
20,6
13,8
14
43
263
27,8
3,5
16
61,4
56
33,3
14,4
28,1
33,1
22,8
15,8
18
49,5
462
42,2
Polyketone Resin Plastic Bevel Gear Ratio 1.5:1
Module
Numberof teeth
da
d
ND
NL
L1
L
S
b
B
E
Torque*
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Ncm
g
1,5
16
26
24
20
10,8
17,8
18,8
12,5
8
8
30
38
6,5
1,5
24
37
36
24
11,3
18
19,5
15,0
8
10
26,6
57
10,4
Polyketone Resin Plastic Bevel Gear Ratio 2:1
Module
Numberof teeth
da
d
ND
NL
L1
L
S
b
B
E
Torque*
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Ncm
g
1
15
16,8
15
12,2
10,6
17
17
11,5
6,6
5
26,4
12,6
2,2
1
30
31,1
30
18
9,1
14,8
16,2
13,6
6,6
8
20,9
25
6,3
1,5
15
25,4
22,5
17
11,5
22,8
22,8
13,8
10,5
8
35,8
45
6,7
1,5
30
46,4
45
23,4
9,6
17,5
19,5
15,0
10,5
10
26,2
90
16,2
2
15
33,6
30
22,5
11,8
26
27
14,5
14,6
10
44,2
112
11,9
2
30
62,2
60
30,2
11,8
22,6
24,2
18,5
14,6
12
32,6
225
37,7
2,5
15
42
37,5
26,5
13
29,6
31,2
16,4
17,3
12
53,3
220
21,2
2,5
30
77,3
75
36,1
15
27,5
29,5
22,8
17,3
16
40,5
439
69,1
3
15
50,3
45
31,2
14,8
35
36,3
19,0
20,5
14
63,3
389
34,1
3
30
93
90
45
19
34,2
37
29,2
20,5
18
49,5
777
122,0
Polyketone Resin Plastic Bevel Gear Ratio 3:1
Module
Numberof teeth
da
d
ND
NL
L1
L
S
b
B
E
Torque*
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Ncm
g
1
15
16,6
15
12,3
11
20,4
20,4
12,1
9,2
5
34,3
16,8
2,5
1
45
46,1
45
23,4
9,6
16,5
18,2
15,7
9,2
10
22,7
50
15,7
1,5
15
25,1
22,5
17,2
12,5
26,8
26,8
13,5
14
8
47,9
67
6,8
1,5
45
68,8
67,5
30,4
11,5
21,5
23
19,2
14
12
29,4
202
45,3
2
10
24,0
20
15,6
12
25,0
25
13,2
12,5
6
43,7
32
5,4
2
30
61,7
60
30,3
11,5
20,2
22,5
19,0
12,5
12
28
95
34,1
2,5
10
29,7
25
18,8
13
28,8
28,8
14,1
15,7
8
52,4
63
9,2
2,5
30
77,2
75
36,1
15,5
25,2
29
24,1
15,7
18
35,7
189
60,6
Polyketone Resin Plastic Bevel Gear Ratio 4:1
Module
Numberof teeth
da
d
ND
NL
L1
L
S
b
B
E
Torque*
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Ncm
g
1
10
12
10
7,8
9,3
17,7
17,7
10,1
8,2
4
30,1
4,7
0,8
1
40
40,8
40
23,4
10,8
15,7
17
15,1
8,2
10
20,1
19
11,3
1,5
10
18
15
11,3
10,9
23,5
23,5
11,7
12,3
5
41,7
18
2,7
1,5
40
61,2
60
30,4
12,8
20
21,7
18,6
12,3
12
26,2
71
28,7
2
10
23,8
20
14,3
12,8
28,9
28,9
13,2
16,3
6
54
42
5,6
2
40
81,5
80
36
16,6
24,7
27
23,1
16,3
18
32,5
168
55,6
Polyketone Resin Plastic Bevel Gear Ratio 5:1
Module
Numberof teeth
da
d
ND
NL
L1
L
S
b
B
E
Torque*
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Ncm
g
1
12
13,7
12
9,5
10
20,3
20,3
10,5
9,5
4
40,5
12,6
1,4
1
60
60,4
60
20,5
11
15,5
17,4
15,4
9,5
10
21
63
17,9
Features of Polyketone Resin Plastic Bevel Gears
Exceptional Wear Resistance: Polyketone resin plastic bevel gears are highly resistant to wear and abrasion, outperforming many traditional thermoplastics. This makes them ideal for applications requiring prolonged use under mechanical stress, ensuring long-lasting performance even in high-load environments.
Chemical and Moisture Resistance: These bevel gears exhibit excellent resistance to chemicals, oils, and moisture, which prevents corrosion and degradation. This feature makes them suitable for use in environments exposed to harsh substances or humid conditions, ensuring durability and reliability.
High Mechanical Strength and Toughness: Polyketone resin gears provide superior mechanical strength and toughness, allowing them to handle significant loads and torque. This ensures their reliability in demanding applications such as industrial machinery, automotive systems, and robotics.
Low Friction and Smooth Operation: The low friction coefficient of polyketone resin ensures smooth and quiet operation, reducing energy losses and minimizing wear on mating components. This feature is particularly useful in applications where noise reduction and efficiency are critical.
Lightweight and Easy to Handle: Polyketone resin gears are lightweight compared to metal gears, which reduces the overall weight of machinery and systems. This not only aids in energy efficiency but also simplifies installation and handling during maintenance.
Versatility in Gear Ratios and Applications: With gear ratios ranging from 1:1 to 5:1, these bevel gears are highly versatile and adaptable to various applications. They are commonly used in robotics, automotive systems, and precision machinery due to their reliable torque and motion transfer capabilities.
Polyketone Resin Plastic Bevel Gear Uses
Automotive Systems: Polyketone bevel gears are used in automotive components like windshield wiper mechanisms and seat adjusters. Their wear resistance and ability to operate in a wide temperature range (-40°C to +140°C) ensure reliable performance under demanding conditions, such as exposure to heat or vibration.
Precision Machinery: These bevel gears are ideal for precision mechanics, such as in CNC machines or robotic actuators. Their low friction and high abrasion resistance enable smooth, accurate power transmission at 90-degree angles, enhancing efficiency in compact, high-precision systems.
Food Processing Equipment: Polyketone bevel gears are used in food-grade machinery due to their low moisture absorption and chemical resistance. They withstand cleaning agents and humid environments, ensuring hygienic operation in conveyors, mixers, or packaging systems without compromising performance.
Medical Devices: In medical equipment like surgical robots or diagnostic machines, these plastic gears provide reliable motion control. Their dimensional stability and resistance to sterilization chemicals ensure consistent performance, while their lightweight nature supports compact, portable device designs.
Marine Applications: Polyketone bevel gears are employed in marine equipment, such as winches or steering systems. Their resistance to saltwater corrosion and low moisture absorption makes them durable in harsh, wet environments, ensuring long-term reliability in marine settings.
Consumer Electronics: These plastic bevel gears are used in devices like printers or cameras for precise motion control. Their high wear resistance and low noise operation support smooth, quiet performance, making them suitable for compact, high-volume consumer products requiring durability.
