Author Topic: Advice needed JP 601 belt drive  (Read 254 times)

Offline marantz123

  • Trade Count: (0)
  • AVForums Member
  • ***
  • Posts: 148
Advice needed JP 601 belt drive
« on: March 12, 2017, 11:53:35 AM »
Hi fellow audiophiles

Restoring a JP601 for a buddy and noticed that its single ball bearing is missing at the bottom of the spindle. Cannot find much info on this deck.The diameter of the hollow on the spindle is 3.975mm(~4mm) I have read that a smaller ball (in this case a 3.18mm) in a slightly larger hollow is the way to do this. What size of ball is supposed to be in here? The teflon thrust washer is still ok with a slight indentation. Also...what type of ball do I get? Ceramic is 10x harder than steel which I worry would do the spindle in over time, then theres carbide, nirtide, and ruby sapphire and zirconia balls..shew. Do I just get a standard steel ball from a bearing shop? Where can I get replacement thrust washers?..another maze here with delrin,teflon etc. It has a square profile belt..is this the right part..can I use a round profile belt here?

Thanks for reading and have a great day! :)
Marantz123.

Offline marantz123

  • Trade Count: (0)
  • AVForums Member
  • ***
  • Posts: 148
Re: Advice needed JP 601 belt drive
« Reply #1 on: March 12, 2017, 12:17:31 PM »
Just to add..it has what looks like some type of an SME-styled arm, and a Shure M55e cart which sounds quite nice. Can only imagine what it may sound like after a service and decent setup. The motor needs some work..seems sluggish...looks like its never been oiled.

Offline marantz123

  • Trade Count: (0)
  • AVForums Member
  • ***
  • Posts: 148
Re: Advice needed JP 601 belt drive
« Reply #2 on: March 14, 2017, 06:00:00 PM »
Bump..anybody? There was another JP601 floating around here recently. Ive ordered the 3.18mm bearing to try. Cannot get the 3.97mm.