PTFE washer lubrication

Andy Higham · 2026-02-23T01:08:59-0700

I have been doing some research on industrial applications of bronze loaded PTFE bearings, the same material as the A.N. Isolastic washers.
For almost all applications NO lubication is required.
There is one application where lubrication IS ADVISED, rapid oscillation. I would think a Norton engine jumping up and down / forward and backwards at up to 7500 times per minute or 25Hz would be rapid oscillation
I am thinking SP-90 dry silicone lubricant spray

baz · 2026-02-23T01:26:01-0700

Andy Higham said:
I have been doing some research on industrial applications of bronze loaded PTFE bearings, the same material as the A.N. Isolastic washers.
For almost all applications NO lubication is required.
There is one application where lubrication IS ADVISED, rapid oscillation. I would think a Norton engine jumping up and down / forward and backwards at up to 7500 times per minute or 25Hz would be rapid oscillation
I am thinking SP-90 dry silicone lubricant spray

Does it need lubrication?

Andy Higham · 2026-02-23T01:42:36-0700

All research I have done on bearings says lubrication advised with rapid oscillation

robs ss · 2026-02-23T02:17:10-0700

I clean then spray Nulon PTFE Dry Lube on, while running (to vibrate it in), every 500-1000 miles
Cheers

Fast Eddie · 2026-02-23T02:27:23-0700

Same here, PTFE spray, acts as a cleaner and leaves a dry PTFE film behind once evaporated.

SteveBorland · 2026-02-23T03:34:13-0700

Fast Eddie said:
Same here, PTFE spray, acts as a cleaner and leaves a dry PTFE film behind once evaporated.

As I recall you have also removed the rubber gaiters on the Iso´s? That will make access easier.

Fast Eddie · 2026-02-23T04:09:45-0700

SteveBorland said:
As I recall you have also removed the rubber gaiters on the Iso´s? That will make access easier.

That is correct. Might not suit everyone, but works for me.

kommando · 2026-02-23T04:13:43-0700

Removing the gaitors keeps the assembly cleaner and it's easier to clean and inspect the iso's. The gaitors seem to attract dirt when they are supposed to protect the assembly from dirt.

Torontonian · 2026-02-23T04:56:15-0700

l spray both front and rear isolastics with Teflon or silicone sprays , about 3 times each riding season . The rear covers have been removed . The front remain in place as the front sees a lot more dust and dirt .
The covers if neglected can act as dirt collectors.

Carl H · 2026-02-23T05:06:14-0700

kommando said:
Removing the gaitors keeps the assembly cleaner and it's easier to clean and inspect the iso's. The gaitors seem to attract dirt when they are supposed to protect the assembly from dirt.

Rubbers keeps water and mud, etc.. ,Even oil from a leaky engine out. In the old days we used to do a little off roading down the nice woods trails and dirt roads that got us to the best, secluded places and beaches to hang out .

Torontonian · 2026-02-23T05:41:12-0700

Speaking of best secluded beaches to hang out on , greetings from Busua beach Ghana Africa .
Motorbikes don't last long here from the humid salt sea air . Rusty carcases abound .Enjoy .

PTFE washer lubrication

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