Descriptions
DC races are offered for use with the DC freewheel cages shown on the previous pages. The cage and race assembly, makes a non-bearing supported freewheel.
Bearing support for axial and radial loads must be provided, along with lubrication and sealing. The sprag space tolerance must not be exceeded when all bearing clearances and mounting tolerances are considered.
Taper between races should be below 0,007 mm for 25 mm width. Outer races type A and B should be pressed into housings that will not deform after assembly. Please contact our technical department if you need to transmit maximum freewheel torque capacity with A and G type. Key stresses may have to be checked.
Specifications
Size |
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Number of holes×Φ |
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Corresponding DC Type |
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dH7 [mm] |
LG [mm] |
LH [mm] |
LJ [mm] |
Dj6 [mm] |
T [mm] |
D-0.005+0.008 [mm] |
L [mm] |
SAn6 [mm] |
b1P10 |
t |
SBs6 |
SCg6 |
DL±0.1 [mm] |
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Da±0.013 [mm] |
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DC230A |
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16 |
72 |
6 |
3.5 |
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54.752 |
DC3809A |
DC230B |
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16 |
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72 |
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54.752 |
DC230C |
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16 |
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95 |
78 |
8×7 |
54.752 |
DC230G-10 |
10 |
16 |
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38.092 |
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DC230G-15 |
15 |
16 |
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38.092 |
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DC230G-20 |
20 |
16 |
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38.092 |
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DC230H-10 |
10 |
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33 |
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35 |
17 |
38.092 |
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DC230H-15 |
15 |
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33 |
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35 |
17 |
38.092 |
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DC230H-20 |
20 |
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33 |
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35 |
17 |
38.092 |
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DC230J-10 |
10 |
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50 |
35 |
17 |
38.092 |
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DC230J-25 |
15 |
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50 |
35 |
17 |
38.092 |
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DC230J-20 |
20 |
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50 |
35 |
17 |
38.092 |
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DC167A |
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16 |
90 |
10 |
5 |
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71.425 |
DC5476A DC5476A(4C) |
DC167B |
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16 |
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90 |
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71.425 |
DC167C |
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16 |
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110 |
95 |
8×9 |
71.425 |
DC167G-25 |
25 |
16 |
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54.765 |
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DC167G-30 |
30 |
16 |
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54.765 |
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DC167G-35 |
35 |
16 |
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54.765 |
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DC167H-25 |
25 |
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35 |
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50 |
19 |
54.765 |
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DC167H-30 |
30 |
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35 |
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50 |
19 |
54.765 |
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DC167H-35 |
35 |
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35 |
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50 |
19 |
54.765 |
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DC167J-25 |
25 |
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54 |
50 |
19 |
54.765 |
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DC167J-30 |
30 |
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54 |
50 |
19 |
54.765 |
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DC167J-35 |
35 |
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54 |
50 |
19 |
54.765 |
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DC168A |
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21 |
110 |
14 |
5.5 |
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88.877 |
DC7221(51) DC7221B DC7221B(5C) |
DC168B |
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21 |
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110 |
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88.877 |
DC168C |
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21 |
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140 |
120 |
8×11 |
88.877 |
DC168G-40 |
40 |
21 |
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72.217 |
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DC168G-45 |
45 |
21 |
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72.217 |
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DC168G-50 |
50 |
21 |
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72.217 |
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DC168H-40 |
40 |
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42 |
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65 |
21 |
72.217 |
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DC168H-45 |
45 |
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42 |
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65 |
21 |
72.217 |
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DC168H-50 |
50 |
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42 |
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65 |
21 |
72.217 |
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DC168J-40 |
40 |
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63 |
65 |
21 |
72.217 |
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DC168J-45 |
45 |
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63 |
65 |
21 |
72.217 |
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DC168J-50 |
50 |
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63 |
65 |
21 |
72.217 |
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DC235A |
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16 |
150 |
20 |
7.5 |
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119.891 |
DC10323A(5c) |
DC235B |
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16 |
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150 |
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119.891 |
DC235C |
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16 |
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190 |
170 |
81×11 |
119.891 |
DC235G-55 |
55 |
16 |
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103.23 |
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DC235G-60 |
60 |
16 |
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103.23 |
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DC235G-75- |
75 |
16 |
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103.23 |
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DC235H-55 |
55 |
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43 |
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100 |
27 |
103.23 |
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DC235H-60 |
60 |
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43 |
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100 |
27 |
103.23 |
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DC235H-75 |
75 |
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43 |
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100 |
27 |
103.23 |
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DC235J-55 |
55 |
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70 |
100 |
27 |
103.23 |
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DC235J-60 |
60 |
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70 |
100 |
27 |
103.23 |
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* Installation and Usage of One Way Clutch Bearings
1. When mounting sprockets or gears to the outer race, use the outer race outer dimension (dimension B) to make a centering flange in the gear or sprocket.
Then attach firmly with bolts of tensile strength 10.9 or greater to the tapped holes in the outer race.
2. Please refer to MZ Series for usage and other types of installations.