Jump to content


Photo

Preston DM1 Bearing Replacement

preston dm1 bearing disassembly

  • Please log in to reply
1 reply to this topic

#1 Joe Medlock

Joe Medlock

    New

  • Basic Members
  • Pip
  • 7 posts
  • 1st Assistant Camera
  • Bristol, UK

Posted 16 April 2017 - 01:06 PM

Hi guys, 

 

One of my Preston DM1 motors needs a replacement bearing as the motor has become noisy.

 

Does anyone know how to disassemble one of these? 

 

Thanks,

Joe 


  • 0

#2 Dom Jaeger

Dom Jaeger
  • Basic Members
  • PipPipPipPip
  • 1604 posts
  • Other
  • Melbourne, Australia

Posted 16 April 2017 - 04:09 PM

It's been about 10 years since I did it, but I remember it being a real pain to dismantle those units - fragile encoder disc, 5 connector wires to the tiny Lemo socket, worm gear loses the meshing adjustment that prevents backlash, etc. I don't think the actual internal motor bearings are replaceable, and may not be the cause of the noise anyway. There are 2 bearings externally accessible under the plug at the top, but replacing those never made the motors quieter from my experience.

I think Preston replaced the internal motor if there were noise issues.
Unfortunately they've stopped servicing DM1 motors, precisely because of the time it takes. Perhaps you could ask their advice, but I suspect they will recommend getting a new motor.
  • 0



Broadcast Solutions Inc

The Slider

Abel Cine

Ritter Battery

Willys Widgets

CineTape

Media Blackout - Custom Cables and AKS

Rig Wheels Passport

Tai Audio

Technodolly

Paralinx LLC

Aerial Filmworks

rebotnix Technologies

FJS International, LLC

Opal

Visual Products

Gamma Ray Digital Inc

Wooden Camera

CineLab

Metropolis Post

Glidecam

Ritter Battery

Technodolly

Broadcast Solutions Inc

Rig Wheels Passport

Gamma Ray Digital Inc

Wooden Camera

Willys Widgets

CineTape

Tai Audio

Aerial Filmworks

FJS International, LLC

Paralinx LLC

Abel Cine

rebotnix Technologies

Visual Products

Metropolis Post

Glidecam

Opal

Media Blackout - Custom Cables and AKS

The Slider

CineLab