Q-D Sheaves for "C" Belts C
Standard Keyseats
Table No.1
Bore Range Keyseat
1/2" !  9/16" 1/8" x 1/16"
5/8 ! 7/8 3/16 x 3/32
15/16 ! 1 1/4 1/4 x 1/8
1 5/16 ! 1 3/8 5/16 x 5/32
1 7/16 ! 1 3/4 3/8 x 3/16
1 13/16 ! 2 1/4 1/2 x 1/4
2 5/16 ! 2 3/4 5/8 x 5/16
2 13/16 ! 3 1/4 3/4 x 3/8
3 3/8 ! 3 3/4 7/8 x 7/16
3 7/8 ! 4 1/2 1 x 1/2
TYPE A TYPE B TYPE C TYPE D TYPE E 
Table No.2 Specifications
Part No. Bushing Borre    Range Type Datum"C" O.D. E L M Wt.         Less    Bushing
1 GROOVE, F = 1 1/4"
1C70SF SF 1/2" ! 2 15/16" D-1 7.0" 7.40" 27/32" 2 1/16" 1/32" 10
1C75SF SF 1/2 ! 2 15/16 D-2 7.5 7.90 27/32 2 1/16 1/32 12
1C80SF SF 1/2 ! 2 15/16 D-2 8.0 8.40 27/32 2 1/16 1/32 13
1C85SF SF 1/2 ! 2 15/16 D-2 8.5 8.90 27/32 2 1/16 1/32 14
           
1C90SF SF 1/2 ! 2 15/16 D-3 9.0 9.40 27/32 2 1/16 1/32 15
1C95SF SF 1/2 ! 2 15/16 D-3 9.5 9.90 27/32 2 1/16 1/32 16
1C100SF SF 1/2 ! 2 15/16 D-3 10.0 10.40 27/32 2 1/16 1/32 17
1C105SF SF 1/2 ! 2 15/16 D-3 10.5 10.90 27/32 2 1/16 1/32 18
           
1C110SF SF 1/2 ! 2 15/16 D-3 11.0 11.40 27/32 2 1/16 1/32 19
1C120SF SF 1/2 ! 2 15/16 D-3 12.0 12.40 27/32 2 1/16 1/32 20
1C130SF SF 1/2 ! 2 15/16 D-3 13.0 13.40 27/32 2 1/16 1/32 22
1C140SF SF 1/2 ! 2 15/16 D-3 14.0 14.40 27/32 2 1/16 1/32 24
           
1C160SF SF 1/2 ! 2 15/16 D-3 16.0 16.40 27/32 2 1/16 1/32 26
1C180SF SF 1/2 ! 2 15/16 D-3 18.0 18.40 27/32 2 1/16 1/32 30
1C200SF SF 1/2 ! 2 15/16 D-3 20.0 20.40 27/32 2 1/16 1/32 35
1C240SF SF 1/2 ! 2 15/16 D-3 24.0 24.40 27/32 2 1/16 1/32 41
2 GROOVES, F = 2 1/4"
2C70SF SF 1/2 ! 2 15/16 D-1 7.0 7.40 3/32 2 1/16 9/32 15
2C75SF SF 1/2 ! 2 15/16 D-1 7.5 7.90 3/32 2 1/16 9/32 17
2C80SF SF 1/2 ! 2 15/16 D-1 8.0 8.40 3/32 2 1/16 9/32 18
2C85SF SF 1/2 ! 2 15/16 D-2 8.5 8.90 3/32 2 1/16 9/32 19
           
2C90SF SF 1/2 ! 2 15/16 D-2 9.0 9.40 3/32 2 1/16 9/32 20
2C95SF SF 1/2 ! 2 15/16 D-2 9.5 9.90 3/32 2 1/16 9/32 21
2C100SF SF 1/2 ! 2 15/16 D-3 10.0 10.40 3/32 2 1/16 9/32 22
2C105SF SF 1/2 ! 2 15/16 D-3 10.5 10.90 3/32 2 1/16 9/32 23
           
2C110SF SF 1/2 ! 2 15/16 D-3 11.0 11.40 3/32 2 1/16 9/32 24
2C120SF SF 1/2 ! 2 15/16 D-3 12.0 12.40 11/32 2 1/16 17/32 25
2C130SF SF 1/2 ! 2 15/16 D-3 13.0 13.40 11/32 2 1/16 17/32 28
2C140SF SF 1/2 ! 2 15/16 D-3 14.0 14.40 11/32 2 1/16 17/32 31
           
2C160SF SF 1/2 ! 2 15/16 D-3 16.0 16.40 11/32 2 1/16 17/32 36
2C180SF SF 1/2 ! 2 15/16 D-3 18.0 18.40 11/32 2 1/16 17/32 39
2C200SF SF 1/2 ! 2 15/16 D-3 20.0 20.40 11/32 2 1/16 17/32 48
2C240SF SF 1/2 ! 2 15/16 D-3 24.0 24.40 11/32 2 1/16 17/32 60
2C300F F 1 ! 4 C-3 30.0 30.40 1 7/32 3 3/4 9/32 85
Table No.3  
Part No. Bushing Borre    Range Type Datum"C" O.D. E L M Wt.         Less    Bushing
3 GROOVES, F = 3 1/4"
3C50SD SD 1/2" ! 2"  A-1 5.0" 5.40" 19/32" 1 13/16" 27/32" 10
3C55SD SD 1/2 ! 2  A-1 5.5 5.90 19/32 1 13/16 27/32 12
3C60SF SF 1/2 ! 2 15/16 D-1 6.0 6.40 23/32 2 1/16  1 29/32 15
3C70SF SF 1/2 ! 2 15/16 A-1 7.0 7.40 13/32 2 1/16 25/32 18
           
3C75SF SF 1/2 ! 2 15/16 A-1 7.5 7.90 13/32 2 1/16 25/32 20
3C80E E 7/8 ! 3 1/2 B-1 8.0 8.40 17/32 2 3/4 1/32 26
3C85E E 7/8 ! 3 1/2 B-1 8.5 8.90 17/32 2 3/4 1/32 29
3C90E E 7/8 ! 3 1/2 A-1 9.0 9.40 15/32 2 3/4 1/32 32
3C95E E 7/8 ! 3 1/2 A-2 9.5 9.90 15/32 2 3/4 1/32 34
           
3C100E E 7/8 ! 3 1/2 A-2 10.0 10.40 15/32 2 3/4 1/32 36
3C105E E 7/8 ! 3 1/2 A-3 10.5 10.90 15/32 2 3/4 1/32 38
3C110E E 7/8 ! 3 1/2 A-3 11.0 11.40 15/32 2 3/4 1/32 40
3C120E E 7/8 ! 3 1/2 A-3 12.0 12.40 15/32 2 3/4 1/32 43
3C130E E 7/8 ! 3 1/2 A-3 13.0 13.40 15/32 2 3/4 1/32 45
           
3C140E E 7/8 ! 3 1/2 A-3 14.0 14.40 15/32 2 3/4 1/32 51
3C160E E 7/8 ! 3 1/2 A-3 16.0 16.40 15/32 2 3/4 1/32 59
3C180E E 7/8 ! 3 1/2 A-3 18.0 18.40 15/32 2 3/4 1/32 65
3C200E E 7/8 ! 3 1/2 D-3 20.0 20.40 7/32 2 3/4 23/32 70
3C240E E 7/8 ! 3 1/2 D-3 24.0 24.40 7/32 2 3/4 23/32 80
           
3C270F F 1 - 4 D-3 27.0 27.40 21/32 3 3/4 5/32 105
3C300F F 1 - 4 D-3 30.0 30.40 21/32 3 3/4 5/32 120
3C360F F 1 - 4 D-3 36.0 36.40 21/32 3 3/4 5/32 140
3C440F F 1 - 4 D-3 44.0 44.40 21/32 3 3/4 5/32 170
3C500F F 1 - 4 D-3 50.0 50.40 21/32 3 3/4 5/32 190
4 GROOVES, F = 4 1/4"
4C50D SD 1/2 ! 2  A-1 5.0 5.40 27/32 1 13/16 1 19/32 12
4C55SD SD 1/2 ! 2  A-1 5.5 5.90 27/32 1 13/16 1 19/32 14
4C60SF SF 1/2 ! 2 15/16 A-1 6.0 6.40 21/32 2 1/16 1 17/32 17
4C70SF SF 1/2 ! 2 15/16 A-1 7.0 7.40 21/32 2 1/16 1 17/32 21
           
4C75SF SF 1/2 ! 2 15/16 A-1 7.5 7.90 21/32 2 1/16 1 17/32 25
4C80E E 7/8 ! 3 1/2 A-1 8.0 8.40 25/32 2 3/4 23/32 30
4C85E E 7/8 ! 3 1/2 A-1 8.5 8.90 25/32 2 3/4 23/32 33
4C90E E 7/8 ! 3 1/2 A-1 9.0 9.40 25/32 2 3/4 23/32 35
4C95E E 7/8 ! 3 1/2 A-2 9.5 9.90 25/32 2 3/4 23/32 38
           
4C100E E 7/8 ! 3 1/2 A-2 10.0 10.40 25/32 2 3/4 23/32 40
4C105E E 7/8 ! 3 1/2 A-2 10.5 10.90 25/32 2 3/4 23/32 43
4C110E E 7/8 ! 3 1/2 A-2 11.0 11.40 25/32 2 3/4 23/32 46
4C120E E 7/8 ! 3 1/2 A-3 12.0 12.40 25/32 2 3/4 23/32 50
4C130E E 7/8 ! 3 1/2 A-3 13.0 13.40 25/32 2 3/4 23/32 54
           
4C140E E 7/8 ! 3 1/2 A-3 14.0 14.40 25/32 2 3/4 23/32 59
4C160E E 7/8 ! 3 1/2 A-3 16.0 16.40 25/32 2 3/4 23/32 65
4C180E E 7/8 ! 3 1/2 A-3 18.0 18.40 25/32 2 3/4 23/32 73
4C200E E 7/8 ! 3 1/2 A-3 20.0 20.40 9/32 2 3/4 1 7/32 82
4C240E F 1 ! 4 D-3 24.0 24.40 3/32 3 3/4 19/32 105
           
4C270E F 1 ! 4 D-3 27.0 27.40 3/32 3 3/4 19/32 125
4C300E F 1 ! 4 D-3 30.0 30.40 3/32 3 3/4 19/32 142
4C360E F 1 ! 4 D-3 36.0 36.40 3/32 3 3/4 19/32 172
4C440J J 1 1/2 ! 4 1/2 C-3 44.0 44.40 0 4 5/8 3/8 225
4C500J J 1 1/2 ! 4 1/2 C-3 50.0 50.40 0 4 5/8 3/8 260
5 GROOVES, F = 5 1/4"
5C60SF SF 1/2 ! 2 15/16 A-1 6.0 6.40 1 1/32 2 1/16 2 5/32 21
5C70SF SF 1/2 ! 2 15/16 A-1 7.0 7.40 1 1/32 2 1/16 2 5/32 26
5C75SF SF 1/2 ! 2 15/16 A-1 7.5 7.90 1 1/32 2 1/16 2 5/32 28
5C80E  E 7/8 ! 3 1/2 A-1 8.0 8.40 1 5/32 2 3/4 1 11/32 33
           
5C85E E 7/8 ! 3 1/2 A-1 8.5 8.90 1 5/32 2 3/4 1 11/32 37
5C90E E 7/8 ! 3 1/2 A-1 9.0 9.40 1 5/32 2 3/4 1 11/32 40
5C95E E 7/8 ! 3 1/2 A-2 9.5 9.90 1 5/32 2 3/4 1 11/32 42
5C100E E 7/8 ! 3 1/2 A-2 10.0 10.40 1 5/32 2 3/4 1 11/32 45
           
5C105E E 7/8 ! 3 1/2 A-2 10.5 10.90 1 5/32 2 3/4 1 11/32 47
5C110E E 7/8 ! 3 1/2 A-2 11.0 11.40 1 5/32 2 3/4 1 11/32 50
5C120E E 7/8 ! 3 1/2 A-2 12.0 12.40 1 5/32 2 3/4 1 11/32 53
5C130E E 7/8 ! 3 1/2 A-3 13.0 13.40 1 5/32 2 3/4 1 11/32 58
           
5C140E E 7/8 ! 3 1/2 A-3 14.0 14.40 1 5/32 2 3/4 1 11/32 64
5C160E E 7/8 ! 3 1/2 A-3 16.0 16.40 1 5/32 2 3/4 1 11/32 73
5C180E E 7/8 ! 3 1/2 A-3 18.0 18.40 1 5/32 2 3/4 1 11/32 85
5C200F F 1 ! 4 D-3 20.0 20.40 3/32 3 3/4 1 19/32 98
5C240F F 1 ! 4 D-3 24.0 24.40 3/32 3 3/4 1 19/32 119
           
5C270F F 1 ! 4 D-3 27.0 27.40 3/32 3 3/4 1 19/32 153
5C300F F 1 ! 4 D-3 30.0 30.40 3/32 3 3/4 1 19/32 174
5C360J J 1 1/2 ! 4 1/2 A-3 36.0 36.40 1/16 4 5/8 9/16 206
5C440J J 1 1/2 ! 4 1/2 A-3 44.0 44.40 1/16 4 5/8 9/16 254
5C500J J 1 1/2 ! 4 1/2 A-3 50.0 50.40 1/16 4 5/8 9/16 274
Table No.4  
Part No. Bushing Borre    Range Type Datum"C" O.D. E L M Wt.         Less    Bushing
6 GROOVES, F = 6 1/4"
6C60SF SF 1/2" ! 2 15/16"  A-1 6.0" 6.40" 1 1/32" 2 1/16" 3 5/32" 20
6C70SF SF 1/2 ! 2 15/16  A-1 7.0 7.40 1 1/32 2 1/16 3 5/32 26
6C75SF SF 1/2 ! 2 15/16 A-1 7.5 7.90 1 1/32 2 1/16 3 5/32 29
6C80E E 7/8 ! 3 1/2 A-1 8.0 8.40 1 5/32 2 3/4 2 11/32 36
           
6C85E E 7/8 ! 3 1/2 A-1 8.5 8.90 1 5/32 2 3/4 2 11/32 39
6C90E F 1 ! 4 A-1 9.0 9.40 1 1/32 3 3/4 1 15/32 51
6C95E F 1 ! 4 A-1 9.5 9.90 1 1/32 3 3/4 1 15/32 55
6C100F F 1 ! 4 A-1 10.0 10.40 1 1/32 3 3/4 1 15/32 59
           
6C105F F 1 ! 4 A-2 10.5 10.90 1 1/32 3 3/4 1 15/32 62
6C110F F 1 ! 4 A-2 11.0 11.40 1 1/32 3 3/4 1 15/32 66
6C120F F 1 ! 4 A-2 12.0 12.40 1 1/32 3 3/4 1 15/32 70
6C130F F 1 ! 4 A-3 13.0 13.40 1 1/32 3 3/4 1 15/32 74
           
6C140F F 1 ! 4 A-3 14.0 14.40 1 1/32 3 3/4 1 15/32 80
6C160F F 1 ! 4 A-3 16.0 16.40 1 1/32 3 3/4 1 15/32 89
6C180F F 1 ! 4 A-3 18.0 18.40 1 1/32 3 3/4 1 15/32 102
6C200F F 1 ! 4 A-3 20.0 20.40 17/32 3 3/4 1 31/32 112
6C240F F 1 ! 4 A-3 24.0 24.40 17/32 3 3/4 1 31/32 131
           
6C270J J 1 1/2 ! 4 1/2 A-3 27.0 27.40 1/16 4 5/8 1 9/16 160
6C300J J 1 1/2 ! 4 1/2 A-3 30.0 30.40 1/16 4 5/8 1 9/16 190
6C360J J 1 1/2 ! 4 1/2 A-3 36.0 36.40 1/16 4 5/8 1 9/16 232
6C440J J 1 1/2 ! 4 1/2 A-3 44.0 44.40 1/16 4 5/8 1 9/16 299
6C500M M 2 ! 5 1/2 B-3 50.0 50.40 7/32 6 3/4 23/32 320
8 GROOVES, F = 8 1/4"
8C80E E 7/8 ! 3 1/2 A-1 8.0 8.40 2 1/32 2 3/4 3 15/32 43
8C85E E 7/8 ! 3 1/2 A-1 8.5 8.90 2 1/32 2 3/4 3 15/32 48
8C90F F 1 ! 4 A-1 9.0 9.40 1 29/32 3 3/4 2 19/32 60
8C95F F 1 ! 4 A-1 9.5 9.90 1 29/32 3 3/4 2 19/32 65
           
8C100F F 1 ! 4 A-1 10.0 10.40 1 29/32 3 3/4 2 19/32 69
8C105F F 1 ! 4 A-2 10.5 10.90 1 29/32 3 3/4 2 19/32 73
8C110F F 1 ! 4 A-2 11.0 11.40 1 29/32 3 3/4 2 19/32 78
8C120F F 1 ! 4 A-3 12.0 12.40 1 29/32 3 3/4 2 19/32 83
8C130F F 1 ! 4 A-3 13.0 13.40 1 29/32 3 3/4 2 19/32 89
           
8C140F F 1 ! 4 A-3 14.0 14.40 1 29/32 3 3/4 2 19/32 97
8C160F F 1 ! 4 A-3 16.0 16.40 1 29/32 3 3/4 2 19/32 113
8C180F F 1 ! 4 A-3 18.0 18.40 1 29/32 3 3/4 2 19/32 131
8C200J J 1 1/2 ! 4 1/2 A-3 20.0 20.40 1/16 4 5/8 3 9/16 152
8C240J J 1 1/2 ! 4 1/2 A-3 24.0 24.40 1/16 4 5/8 3 9/16 185
           
8C270J J 1 1/2 ! 4 1/2 A-3 27.0 27.40 1/16 4 5/8 3 9/16 208
8C300J J 1 1/2 ! 4 1/2 A-3 30.0 30.40 1/16 4 5/8 3 9/16 230
8C360M M 2 ! 5 1/2 A-3 36.0 36.40 9/32 6 3/4 1 7/32 306
8C440M M 2 ! 5 1/2 A-3 44.0 44.40 9/32 6 3/4 1 7/32 440
8C500M M 2 ! 5 1/2 A-3 50.0 50.40 9/32 6 3/4 1 7/32 475
Table No.5  
Part No. Bushing Bore    Range Type Datum "C" O.D. E L M   Wt.         Less    Bushing
10 GROOVES, F = 10 1/4"
10C80E E 7/8" ! 3 1/2" A-1 8.0" 8.40" 2 1/32" 2 3/4" 5 15/32" 65
10C85E E 7/8 ! 3 1/2 A-1 8.5 8.90 2 1/32 2 3/4 5 15/32 69
10C90J J 1 1/2 ! 4 1/2 A-1 9.0 9.40 2 1/16 4 5/8 3 9/16 73
10C95J J 1 1/2 ! 4 1/2 A-1 9.5 9.90 2 1/16 4 5/8 3 9/16 79
           
10C100J J 1 1/2 ! 4 1/2 A-1 10.0 10.40 2 1/16 4 5/8 3 9/16 84
10C105J J 1 1/2 ! 4 1/2 A-1 10.5 10.90 2 1/16 4 5/8 3 9/16 95
10C110J J 1 1/2 ! 4 1/2 A-1 11.0 11.40 2 1/16 4 5/8 3 9/16 104
10C120J J 1 1/2 ! 4 1/2 A-1 12.0 12.40 2 1/16 4 5/8 3 9/16 113
           
10C130J J 1 1/2 ! 4 1/2 A-3 13.0 13.40 2 1/16 4 5/8 3 9/16 121
10C140J J 1 1/2 ! 4 1/2 A-3 14.0 14.40 2 1/16 4 5/8 3 9/16 128
10C160J J 1 1/2 ! 4 1/2 A-3 16.0 16.40 2 1/16 4 5/8 3 9/16 146
10C180J J 1 1/2 ! 4 1/2 A-3 18.0 18.40 2 1/16 4 5/8 3 9/16 161
10C200J J 1 1/2 ! 4 1/2 A-3 20.0 20.40 2 1/16 4 5/8 3 9/16 175
           
10C240M M 2 ! 5 1/2 A-3 24.0 24.40 9/32 6 3/4 3 7/32 265
10C300M M 2 ! 5 1/2 A-3 30.0 30.40 9/32 6 3/4 3 7/32 310
10C360M M 2 ! 5 1/2 A-3 36.0 36.40 9/32 6 3/4 3 7/32 345
10C440M M 2 ! 5 1/2 A-3 44.0 44.40 9/32 6 3/4 3 7/32 450
10C500M M 2 ! 5 1/2 A-3 50.0 50.40 9/32 6 3/4 3 7/32 500
12 GROOVES, F = 12 1/4"
12C90J J 1 1/2 ! 4 1/2 A-1 9.0 9.40 2 9/16 4 5/8 5 1/16 80
12C95J J 1 1/2 ! 4 1/2 A-1 9.5 9.90 2 9/16 4 5/8 5 1/16 88
12C100J J 1 1/2 ! 4 1/2 A-1 10.0 10.40 2 9/16 4 5/8 5 1/16 95
12C105J J 1 1/2 ! 4 1/2 A-1 10.5 10.90 2 9/16 4 5/8 5 1/16 101
           
12C110J J 1 1/2 ! 4 1/2 A-1 11.0 11.40 2 9/16 4 5/8 5 1/16 111
12C120J J 1 1/2 ! 4 1/2 A-2 12.0 12.40 2 9/16 4 5/8 5 1/16 127
12C130J J 1 1/2 ! 4 1/2 A-3 13.0 13.40 2 9/16 4 5/8 5 1/16 137
12C140J J 1 1/2 ! 4 1/2 A-3 14.0 14.40 2 9/16 4 5/8 5 1/16 150
           
12C160J J 1 1/2 ! 4 1/2 A-3 16.0 16.40 2 9/16 4 5/8 5 1/16 170
12C180J J 1 1/2 ! 4 1/2 A-3 18.0 18.40 2 9/16 4 5/8 5 1/16 205
12C200M M 2 ! 5 1/2 A-3 20.0 20.40 9/32 6 3/4 5 7/32 245
12C240M M 2 ! 5 1/2 A-3 24.0 24.40 9/32 6 3/4 5 7/32 285
           
12C300M M 2 ! 5 1/2 A-3 30.0 30.40 9/32 6 3/4 5 7/32 355
12C360M M 2 ! 5 1/2 A-3 36.0 36.40 9/32 6 3/4 5 7/32 420
12C440M M 2 ! 5 1/2 A-3 44.0 44.40 9/32 6 3/4 5 7/32 515
12C500M M 2 ! 5 1/2 A-3 50.0 50.40 9/32 6 3/4 5 7/32 575