MIG Drive Rollers 

30 D x 18.4 W x 10.0mm Bore
0.9/1.0mm
MIG186
Bossweld MIG186
"V" Groove
Part No. 618622.
Requires less tension on idle wheel.
Wheel Size 30.0 mm dia. x 18.4 mm wide x 10.0 mm Bore - 4.0 mm keyway
Please note our width measurement includes Boss, actual width of roller can vary from 12.5 mm-15.5 mm
some drive rollers have hole bored other solid, the distance between the grooves is approx. 6.5 mm