Metal lathe Steady Rest Heavy duty Roller Jaw Kit 

I have measured the roller jaws. Customer can see the data and check if can fit your steady rest. 

Jaw diameter: 20 MM

Mounting stud diameter: 14 MM(We have even bigger model with 18MM,21MM, 25MM, etc stud diameter)

Surface: Black finish

Bearing width: 8 MM

Bearing diameter:22 MM

Bearing type: Ball roller bearing

Jaw length: 41MM

The jaw kit can fit many brands of lathes made in China. 

N.W. is 0.2 KG. Gross weight is 0.35KG.

Have sales of this model in China mainly. 

On the last photo you can see we have steady rest sliding jaws also. They can be made by copper, nylon and cast iron.