BlackStar Q1 65MM - Split Taper Bushing - 65MM" Bore TL4535 The 3408-8M-30 is a timing

The 3408-8M-30 is a timing belt from D&D Global's Dura-Sync Torque - 8M Series line

so a 1210H100 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

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so the Megadyne 5/B63 interchanges with Gates

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BlackStar Q1 65MM - Split Taper Bushing - 65MM" Bore TL4535 The 3408-8M-30 is a timingThe BlackStar Q1 65MM is a Q1 series split taper bushing with a 65MM" finished bore, precision manufactured from high grade steel. Split Taper bushings use a two piece split design for easy shaft mounting and are ideal for sheaves, sprockets, and couplings. Specifications Part Number Q1 65MM Bushing Type Split Taper Series Q1 Bore Size 65MM" Minimum Bore 3 4" Maximum Bore 2 1 16" Outside Diameter 2. 875" Length 2 1 2" Material Steel Approx. Weight 3.