Search results
Results From The WOW.Com Content Network
The centre of a shaft is not toothed, as this would add little torque capacity to the coupling and the increasingly narrow teeth would become impractical to cut. For instance, a shaft of 60 mm diameter can be toothed in a 12 mm wide ring only (inner diameter is 36 mm) without jeopardizing the load-bearing capacity of the shaft.
A grid coupling is composed of two shaft hubs, a metallic grid spring, and a split cover kit. Torque is transmitted between the two coupling shaft hubs through the metallic grid spring element. Like metallic gear and disc couplings, grid couplings have a high torque density. A benefit of grid couplings, over either gear or disc couplings, is ...
[1] [25] 7.5 threads per inch were selected not just as a compromise between the 6, 7, and 8 threads per inch then in use, but because tools and methods had been developed to facilitate the conversion of existing 7 tpi and 8 tpi threads to 7.5 tpi threads, for couplings with an outside diameter ranging from 3 inches to 3 1/8 inches to the new ...
The hex socket screw drive has a hexagonal recess and may be driven by a hex wrench, also known as an Allen wrench, Allen key, hex key, or inbus as well as by a hex screwdriver (also known as a hex driver) or bit. Tamper-resistant versions with a pin in the recess are available.
An animation of the SA-3 coupler Willison coupler on South African 2 ft (610 mm) narrow gauge. The Willison coupler was developed in the US in 1916 to address issues present in the Janney coupling. [25] The Russian SA3 coupler works according to the same principles as the AAR coupler, but the two types are incompatible. [26]
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
AAR couplers on 1,000 mm (3 ft 3 + 3 ⁄ 8 in) metre gauge [7] and some passenger (FIAT 7131 DMUs) and freight rolling stock on standard and broad gauge. Small knuckle coupler with slot in knuckle for link and pin couplers on 750 mm ( 2 ft 5 + 1 ⁄ 2 in )
A universal joint (also called a universal coupling or U-joint) is a joint or coupling connecting rigid shafts whose axes are inclined to each other. It is commonly used in shafts that transmit rotary motion .