German AL20 coupling AL20 model AL20 price

AL20 coupling is a widely used coupling, also known as a jaw coupling, consisting of two metal jaw hubs and an elastomer. The two metal jaw hubs are generally made of 45 steel, but aluminum alloy is also used when load sensitivity is required.

AL20 coupling manufacturing process

The spider coupling is machined by turning, milling, and broaching, followed by overall heat treatment to ensure sufficient mechanical strength. There is also a type of jaw hub on the market that is cast, allowing for mass production and eliminating machining losses. Therefore, the price is much lower than that of machined parts. However, the performance of castings is not very good. It is best not to use them in some important applications. Furthermore, the jaws of cast hubs are prone to tooth breakage (jaw tooth detachment) under high speed or high load conditions. 1) Compact, backlash-free, offering three different hardness elastomers; 2) Absorbs vibration, compensates for radial and angular misalignment; 3) Simple structure, easy maintenance, convenient inspection; 4) Maintenance-free, oil-resistant and electrically insulating, operating temperature 20℃-60℃; 5) Spider elastomers are available with four, six, eight, and ten lobes; 6) Fixing methods include set screw, clamping, and keyway fixation.

AL20 coupling application range

Spider couplings are widely used in CNC machine tools, CNC lathes, machining centers, engraving machines, CNC milling machines, computerized milling machines, metallurgical machinery, mining machinery, petroleum machinery, chemical machinery, lifting machinery, transport machinery, light industry machinery, textile machinery, water pumps, fans, etc.

AL20 coupling installation and use

1) Wipe the dust and dirt from the surface of the installation shaft clean, and apply a thin layer of machine oil or lubricant. 2) Clean the inner bore of the coupling and apply machine oil or lubricant. 3) Insert the coupling onto the installation shaft; if the bore fit is tight, avoid striking the installation with an iron hammer or hard metal. 4) After positioning, first tighten the screws gently in a diagonal pattern using a torque wrench (specified tightening torque 1/4). 5) Increase the force (to 1/2 of the specified tightening torque) and repeat step 4. 6) Tighten and fix according to the specified tightening torque. 7) Finally, tighten the fixing screws sequentially in a circumferential direction. 8) When disassembling, please perform the operation only when the device has completely stopped; loosen the locking screws sequentially.

Weidou Intelligent Technology professionally sells German AL20 rigid couplings, AL20 flexible couplings, AL20 safety couplings, AL20 universal joints, AL20 disc couplings, AL20 spider couplings, AL20 flange couplings, AL20 cross couplings, AL20 slider couplings, AL20 gear couplings, AL20 tire couplings, AL20 elastic couplings, AL20 bellows couplings, AL20 roller chain couplings, AL20 spring couplings, AL20 original German imports. Welcome customers to inquire and order.