Please identify CWT Roller Guide

Can you identify this CWT Roller Guide and tell me where to find replacement rollers?

What kind of elevator are they on? They look a lot like the Korean ones TKE is using one which are also just like the ones ZZIPCO elevator sells.

I think the TKE roller would fit on it, but it looks like northern elevator to me.

We have the rollers and complete units in stock, rollers are 85.00 each complete units are 400.00, very heavy about 50 pounds each, rollers are 8" diameter
Chris Moore
Manager-Internet sales-USA
Master Elevator Components, Inc
917.273.6175

The rollers are 130mm OD x 24mm wide. 20mm ID Bearing. Elevator was installed by Fujitec. Has Elsco roller guides on the car, but these odd roller guides on CWT.

We have the rollers and complete units in stock, rollers are 85.00 each complete units are 400.00, very heavy about 50 pounds each, rollers are 8" diameter
Chris Moore
Manager-Internet sales-USA
Master Elevator Components, Inc
917.273.6175