300X Belt Pulley Assembly

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Use for T-REX 300X.Aluminium Alloy Material.Innovative adjustable belt guide pulley, allows a convenient way to adjust the belt tension by releasing or tightening the screw. The screw is used to maintain optimal belt tension over time.
300 Belt Pulley Mount x 2 (10x5.3x7.2mm)300 Belt Pulley x 2 (Φ4xΦ7.4x4.9mm)300 Belt Pulley Spring x 2 (Φ3.2xΦ4.4x8.5mm)Bearing 681ZZ x 4 (Φ1.5xΦ4x2mm)Socket Button Head Screw x 2 (#0-80x6mm)