Precise machine work
Metal cutting, piecework, small lathes and milling machines
Adjustable speed V-belt sheave cast iron
| Type | Type | Taper | D[mm] | Min-Max | K | Min-Max rpm |
L[mm] | Weight[kg] |
|---|---|---|---|---|---|---|---|---|
| AJT 84 Zx1 | SPZ | 1108 | 71 | 62 - 80 | 1,64 | 0,8 - 1,6 | 28 | 0,65 |
| AJT 95 Zx1 | SPZ | 1108 | 82 | 73 - 91 | 1,64 | 1,3 - 2,1 | 30 | 0,85 |
| AJT 100 Zx1 | SPZ | 1108 | 87 | 78 - 96 | 1,64 | 1,5 - 2,3 | 30 | 1 |
| AJT 108 Zx1 | SPZ | 1210 | 97 | 90 - 104 | 1,45 | 2,0 - 2,7 | 35 | 1,3 |
| AJT 120 Ax1 | SPA | 1210 | 101 | 88 - 114 | 1,64 | 1,8 - 3,7 | 35 | 1,6 |
| AJT 129 Ax1 | SPA | 1210 | 110 | 97 - 123 | 1,64 | 2,5 - 4,2 | 35 | 1,9 |
| AJT 139 Ax1 | SPA | 1610 | 121 | 109 - 133 | 1,54 | 3,4 - 5,0 | 35 | 2,5 |
| AJT 146 Ax1 | SPA | 1610 | 128 | 116 - 140 | 1,54 | 3,8 - 5,5 | 35 | 2,7 |
| AJT 156 Ax1 | SPA | 1610 | 138 | 126 - 150 | 1,54 | 4,5 - 6,2 | 35 | 3,1 |
| AJT 164 Ax1 | SPA | 1610 | 146 | 134 - 158 | 1,54 | 5,1 - 6,7 | 35 | 3,5 |
| AJT 177 Ax1 | SPA | 2012 | 160 | 149 - 171 | 1,45 | 6,1 - 7,5 | 40 | 4,3 |
| AJT 187 Ax1 | SPA | 2012 | 170 | 159 - 181 | 1,45 | 6,8 - 8,2 | 40 | 4,7 |
| AJT 178 Bx1 | SPB | 2012 | 155 | 139 - 171 | 1,64 | 5,9 - 9,3 | 40 | 4,3 |
| AJT 187 Bx1 | SPB | 2012 | 164 | 148 - 180 | 1,64 | 6,8 - 10,3 | 40 | 4,7 |
| AJT 120 Ax2 | SPA | 1215 | 101 | 88-114 | 1,64 | 3,6 - 7,4 | 65 | 4,4 |
| AJT 129 Ax2 | SPA | 1215 | 110 | 97 - 123 | 1,64 | 5,0 - 8,4 | 65 | 4,6 |
| AJT 139 Ax2 | SPA | 1615 | 121 | 109 - 133 | 1,54 | 6,8 - 10,0 | 70 | 4,9 |
| AJT 146 Ax2 | SPA | 1615 | 128 | 116 - 140 | 1,54 | 7,6 - 11,0 | 70 | 5,3 |
| AJT 156 Ax2 | SPA | 1615 | 138 | 126 - 150 | 1,54 | 9,0 - 12,4 | 70 | 5,7 |
| AJT 164 Ax2 | SPA | 1615 | 146 | 134 - 158 | 1,54 | 10,2 - 13,4 | 70 | 6,1 |
| AJT 177 Ax2 | SPA | 2012 | 160 | 149 - 171 | 1,45 | 12,2 - 15,0 | 90 | 8,1 |
| AJT 187 Ax2 | SPA | 2012 | 170 | 159 - 181 | 1,45 | 13,6 - 16,4 | 90 | 8,7 |
| AJT 178 Bx2 | SPB | 2012 | 155 | 139 - 171 | 1,64 | 11,8 - 18,6 | 90 | 8,1 |
| AJT 187 Bx2 | SPB | 2012 | 164 | 148 - 180 | 1,64 | 13,6 - 20,6 | 90 | 8,7 |
Adjustable speed V-belt pulleys are adjusted by rotating, in quarter turn increments the precision threaded collar. There are 4 equally spaced set screws on the collar. One set screw is tightened down into a keyway on the outside diameter for the hub. The other /3/ set screw are tightened down on prepared flat spots in other quadrants. The adjusting factor, listed above, is used to compute the amount of change in pitch diam. Per each quarter turn of the threaded collar.
All adjustable pulleys are balanced in one plane according to VDI 2060,quality degree Q 16 at n=1500/min
Example:
To adjust an AJT 187 A1 pulley to a pitch diam. of 165 mm.. Max pitch diam. is 181 mm.
(Dmax - Ddesired)/4*K it is (181-165)/4*1,45 = 2,75 turns