60Hz high starting torque, continuous-duty, single phase capacitor start or 3 phase motor, open drip proof, protected against overload. Also available with 50Hz motor 220V 1 phase and 380V 3 phase motor, consult inside sales.
First step in reduction 5L/B V-belt drive, additional step by #41 chain and sprockets. Input shaft is 5/8″, supported by precision ball bearings. Output shaft is 1″, supported by ball bearings. Output shaft speed: 120 rpm for a door travel of 12″/s.
• Drive and Trolley Assembly:
#48 (410) full roller chain drive on 1/2 HP and #41 full roller chain drive on 3/4, 1 HP. 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 30Ft). 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 electrical enclosure 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.
• Mounting (Low Headroom Design):
Ceiling-mounted with only 6.25″ headroom clearance required below the tracks.
Back Room: door height + 4’5″ (1350 mm)
Head Room For Tracks: 5.625″ (143 mm) above the highest point of door travel
2 Years, per section 6 of our Terms and Conditions of Sale.