If it's minimal maintenance you're after, these quality PVC belts with impregnated lubrication require less attention to make things run smoothly.
This Sportsmith treadmill prelubed walking belt fits certain Precor 9.35*, 932i* and 946i*Fits Precor 932i, serial#s AXGT, AXGX, and AYYT*
Fits Precor C946i, serial#s A925, ATRX, and AADB*
Fits Precor 9.35, serial# AJND*

User facing surface: Black Diamond
User facing material: PVC
Impregnated Lubrication
Finger-spliced seam
1 ply
*Some models with the same name use different parts. This is why you should always match your model# or serial#.