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| Bevel Gear Machine Screw Jacks are by the use of spiral bevel gears mechanism with self locking trapezoidal screws. These bevel gear jacks use bevel gears inside the housing instead of worm gearing. Bevel gears are more efficient than worm gearing—around 35% compared to 20%. So these bevel gear jacks offer higher efficiency and greater speed than other mechanical worm gear screw jacks, but a bit more expensive. As an added benefit, bevel gear jacks with three shafts also act as 90 degree bevel gearboxes, making them an ideal choice for multiple screw jack lift systems, which helps balance the difference in price. | |||||||||
JTG12
JACTON
Product Description
Bevel Gear Machine Screw Jack 800 lbs-18x4-Trapezoidal Screw-Aluminum housing. Bevel gear screw jacks are made with spiral bevel reduction gears and trapezoidal acme screws, available in both rotating and travelling versions. The high performance actuators are also made with spiral bevel reduction gears and trapezoidal acme screws. In the absence of vibration load, they are self-locking and precisely position loads, will hold loads without backdriving, and no need any brake mechanism or locking system. For low duty cycle applications, for hand-operated applications, or if back driving is not acceptable consider a bevel gear machine screw jack.
Main Features
* Equipped with hardened spiral toothed bevel gear transmissions for high lifting speeds, greater duty cycles, high efficiency and long lifespan.
* One, two and three drive shafts configurations are available.
* Maximum static load capacity 800 lbs. (400 kg). Maximum dynamic load capacity 400 lbs. (200 kg).
* Self-locking trapezoidal screw sizes Tr 18x4, precise positioning, and uniform speed.
* Reduction gear ratio: 2:1. Travel 2 mm per turn of input shaft.
* Custom stroke length, maximum stroke 600 mm in compression load, 1200 mm in tension load.
* Basic designs: Translating screw, Keyed screw, and Rotating screw.
* Upright or Inverted mounting. Available in tension or compression loads.
* Standard with 1-start thread screw, custom 2-starts threads screw which offers increased travel speed and require a brake or external locking device to hold position.
* Screw end fittings: top plate, clevis end, threaded end, plain end, fork head and rod end.
* Power source: manual handwheel, electric motor drive, or both together.
* Can be applied either individually use or combined into a exactly synchronized lifting system(multiple jack systems), linked by connecting shafts, bevel gearboxes, couplings, electric motors, gear reducers, limit switches and pillow blocks etc.
* Optimal for low-speed operation: The driving system has less noise because machinery can be driven at a lower input speed.
* Higher efficiency, higher lifting speed, higher duty cycle, longer lifespan.
* Simple and effective solution in comparison with hydraulic and pneumatic systems.
Product Material
We use the best materials to guarantee the performance and lifetime of the Bevel Gear Machine Screw Jack 800 lbs you purchased.
* Spiral Bevel Gears: Lapped together in pairs, high quality alloy steel, case hardened.
* Housing: Aluminum alloy.
* Trapezoidal Screw: C45 Steel as Standard. Custom Stainless Steel 304 or 316.
* Input Shaft / Output Shafts: Hardened, alloy steel. Custom Stainless Steel 304 or 316.
* Drive Sleeve / Travelling Nut / Safety Nut: High strength bronze ZQAl9-4 (Casting aluminum bronze) as Standard. Custom bronze ZCuSn10Pb1(Casting tin bronze).
* Bearing: Anti-friction Tapered Roller Bearings. Custom Stainless Steel 304.
* Motor Flange Adapter: High-strength Casting Motor Adapter, Ductile Iron. Custom Stainless Steel 304 or 316.
Download
Speficications | Dimensional Drawings | Selection Guide | Catalog
Application Case
The Bevel Gear Machine Screw Jacks are widely used in transmission units and digital control execution of machinery, steel ladle lifting, turning over and movement transmission units, lifting units and automatic or remote control opening/closing of large windows and doors, sluice gate opening in water conservation applications, large and flexible clamping, transposition tooling, welding robots, remote radar and solar energy sensing, medical equipment lifting, lifting units on lift stages and in the automobile industry, etc.
Packaging and Shipping
* 100% standard exporting plywood cases (international exporting standard wooden material with free fumigation).
* Express(Air): Factory to customers' company by FEDEX, DHL, UPS, TNT. Incoterms: EXW, DDU.
* Sea Freight: Factory to destination seaport by Vessel. Incoterms: CIF, FOB, EXW, CFR.
* Air Freight: Factory to destination airport by Airplane. Incoterms: CFR, EXW, FCA, CPT, CIP.
* Additional Options (Door to Door): Train Transportation, Truck Transportation, Ocean Shipping.
