Outside dimension of hub liner bushing should be same as inside of where the liner is inserted.
Insertion tool can be rented.
Office chair base hub liner
1 5/8" (1.630") outside diameter
3 3/4" high
Has 1" inside diameter center hole
Black
Office chair Hub liner-plastic
1 5/8" outside diameter of ribs
1" inside diameter of center hole
Install- Lay a wood 1 x 4 on top and strike wood with steel hammer.
Hub Liner Removal & Installation
Hub Liner Removal & Instal Tool
Hub Liner Tips