BlackStar 6SCH 1 3/8 - Spacer Coupling Heavy-Duty Seal so the Megadyne 12/B103 interchanges

so the Megadyne 12/B103 interchanges with Gates

"name":"Gates TP225H100 PowerGrip Twin Power Timing Belts"

Martin 3-5V1030SF

"text": "The 8/B225 has a 21/32\" width

The Gates 360J5 Micro-V Belts is a Micro-V (multi-ribbed) belt with Micro-V J-section dimensions

BlackStar 6SCH 1 3/8 - Spacer Coupling Heavy-Duty Seal so the Megadyne 12/B103 interchangesThe BlackStar 6SCH 1 3 8 is a spacer coupling, manufactured from steel. Spacer style coupling separates the driver and driven equipment, allowing pump or motor removal without disturbing alignment. Common in API spec pumps, large industrial motors, and floating shaft installations. Specifications Part Number 6SCH 1 3 8 Product Type Spacer Coupling Coupling Size 6 Material Steel Approx. Weight 1. 5 lbs Cross references: Lovejoy 6SCH