I need to make a 6 sheave pulley

[Janderso]

There are a number of manufactures of 5-step pulleys, might be close enough and should be straight forward boring the center to size and putting in a key slot. The ones on Amazon look like junk, the one below is 6" and looks quite substantial may be worth calling around or google "5-step" Pulley -amazon. I had thought you needed 6 V groves all the same and were driving some massive power.

Step Pulley Sheave Distributor & Reseller - Task Industrial

Task Industrial LLC sells manufacturer step pulley sheaves from Masterdrive and more. For more details, visit the following page or give us a call.

www.taskindustrial.com

AKS63-1/2 4 STEP PULLEY, 3", 4", 5" & 6"1/2" BORE

AKS62-5/8 5 STEP PULLEY, 2", 3", 4", 5"& 6" 5/8" BORE..AKS62-5/8 5 STEP PULLEY, 2", 3", 4", 5"& 6" 5/8" BORE.Just Ask Task..Fast Shipping.......Price $84.26

www.taskindustrial.com

I ordered the Task Industrial.
It's perfect.

Thank you

 

[Tim9]

130mm so it’s only 5.11 inches
That said, it’s only 16.00
Maybe you can modify it to your needs.
Amazon has lots of pulley listings
Homeswitch Aluminum 16mm Bore 4 Step A Type V-Belt Pagoda Pulley Belt Outer Dia 41-130mm https://www.amazon.com/dp/B07LB2MXT6/ref=cm_sw_r_cp_api_glt_fabc_FDVVGZVK7BXZQ6Q0W8AW

 

[whitmore]

Yes, I was planning on using a broach. The drilling, boring and keyway was my first operation on my first attempt in my head

If there's a spindle under this pulley, it's going to be a spline to match the shaft? If it's a motor
under the pulley, you'll not need the full 6" length to mate to the shaft, so you
can bore relief for the excess length.

If the (cast iron) Durabar is questionable for a strong keyway, how unreasonable is it to broach a mild steel
sleeve then glue it in? That'd be a possible fallback plan, in any case.