Products for bench top machinists | LittleMachineShop.com

Interrupter Wheel, 66 mm Diameter

Interrupter Wheel, 66 mm Diameter - Main image
$4.8 $6.49 In stock

This is the interrupter wheel for the 7x14 spindle tachometer.
This interrupter wheel can be used to adapt the PN 1684 spindle tachometer to machines with a larger spindle diameter.
The wheel is 66 mm (2.60") in diameter, 1 mm (0.04") thick, and has a 30.2 mm (1.19") hole in it. There is a 5 mm keyway in the bore. The diameter at the root of the teeth is 56 mm (2.20"). There are 40 teeth.

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Customer Reviews (4.4 / 5 · 5 reviews)

Alexander ★★★★★

Bought this to upgrade my spindle tachometer to fit a larger diameter shaft, and the 66 mm wheel fit perfectly. The holes lined up without any extra drilling, which saved me a ton of time.

Edward ★★★★★

Installed this on my 7x14 setup, and the 66 mm diameter fits the larger spindle perfectly with no wobble. The adapter function worked exactly as described for the tachometer.

Lucy ★★★★★

The 66 mm diameter fit my larger spindle perfectly, so the sensor finally picked up a clean signal. It slid right on with no wobble, and the whole setup took less than five minutes.