1/2 HP, 115V single phase intermittent-duty motor with instant reverse and internal automatic reset thermal overload protection. Removable without affecting limit switch settings.
First step in reduction 4L/A V-belt drive, additional step by #48 (#410) chain and sprockets. Input shaft is 5/8″, supported by ball bearings. Output shaft is 1″, supported by ball bearings. Output shaft speed: 112 rpm for a door travel of 11″/s.
• Drive and Trolley Assembly:
#48 (410) full roller chain drive. Dual, 12 gauge, pre-drilled galvanized tracks provided for doors up to 12Ft in height standard. Additional track lengths are available (max. door height acceptable for the operator limit system is 14Ft). Track spacers 3/4″ steel shaft. Trolley made of cast aluminum alloy with chain tension adjustment device.
Friction type, positioned on input shaft, easily adjustable from outside.
• Manual Operation:
Quick release disconnect arm for manual push-up operation.
• Electrical Enclosure:
All electrical components are in a Nema 1 enclosure. Hinged cover.
• Limit System:
Rotary-type oil-impregnated steel cams, commercial grade switches. Limit shaft is supported by self-lubricating bronze bushings for increased precision. Remains in time when there is a manual operation or after the motor has been removed.
• Accu-cam® Feature:
Precise and quick one-handed adjustment of the limits.
• Corrosion Protection:
Frame and control enclosure protected by baked on, long lasting enamel finish. All shafts protected by yellow chromate coating.
Ceiling-mounted with only 6.125″ headroom clearance required below the tracks.
Maximum Door Height: 14′ (4260 mm)
Back Room: door height + 3’11” (1175 mm)
Head Room For Tracks: 5″ (127 mm) above the highest point of door travel
2 Years, per section 6 of our Terms and Conditions of Sale.