75mm Black Magic AirBlocks feature Torlon roller bearings and carbon black balls for strength and reduced wear. The unique center cage separates rollers for less friction, and sideload ball bearings are protected by sculpted aluminum sideplates. Dissimilar metals are isolated to minimize corrosion. Like all AirBlocks, the three-way head swivels and locks in either front or side position. Blocks are easily disassembled with a single Allen wrench.
- Sheave: 6061-T6 Hardkote anodized aluminum
- Sheave Size: 3" (75mm) except 1975 Spriddle fiddle block 3" and 2-1/4" (75mm and 57mm)
- Line Dia: 9/16" (14mm) max.Construction: Three fasteners for quick disassembly. Plastic isolators separate dissimilar metals
- Safe Working Load: 5000lb. (1972 Footblock is 5250)
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