Technical datas:
Outer diameter OD: 18mm
Diameter running surface: 16mm
Inner diameter ID: 5mm (1pcs or 2pcs 695ZZ Ball Bearing Built-in)
For up to 7mm Belt
Built-in 695ZZ Ball Bearing can be mounted onto 5mm shaft or rod as flying idler.
D1 15.9mm
D2 17.9mm
W1 7.7mm
W2 9.2