48B-1 Steel roller chain, sold per metre.
Typical specification:
Pitch P: 3"
Roller Diameter A: 48.29mm
Width between inner plates B: 45.72mm
Pin diameter C: 29.24mm
Pin Length D: 99.1mm
Link Pin Length E: 107mm
Inner plate height F: 63.8mm
Plate thickness g/G: 12/10
Minimum tensile strength: 560kN
Average tensile strength: 621.6kN