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China, Chinese Steel Bk Belt Pulley (quenched keyway transmission)1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Power Transmission PartsTransmission PulleyTaper Bush PulleyCast Iron V Belt
Qingdao Star Machine Technology Co., Ltd.
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Product Description Product DescriptionI. Core definitions of AK and BK pulleys1. AK pulleys-Structural features:Shaft bore is conical (Conical Bore) Conical Bore: The internal bore of the pulley body is conical in design (usually used in conjunction with a conical sleeve) and needs to be connected to the shaft through the conical sleeve.Installation method: rely on the taper sleeve to hold the shaft (similar to the 'tightening sleeve' principle), without machining the keyway, through the bolt to tighten the taper sleeve to achieve the fixation.Applicable scenarios: equipment requiring quick installation, adaptation to various shaft diameters or frequent maintenance (e.g. mining machinery, fans).Typical identification:Example of model: AK 50 (indicates AK type pulley with a reference diameter of 50mm). 2. BK pulley-Structural features:Cylindrical Bore: The internal bore of the wheel body is straight (smooth cylindrical bore). The shaft is connected to the pulley by means of a keyway and a key.Mounting: key transmission of torque (similar to conventional pulleys), keyway in the shaft bore (e.g. DIN 6885 keyway).Scenarios: Stationary equipment (e.g. motors, gearboxes) with a machined keyway in the shaft, or where high torque transmission is required.Typical designation:Example of model: BK 80 (indicates a BK type pulley with a reference diameter of 80 mm).Comparison items AK belt pulleyBK belt pulleyShaft hole shape Conical (requires conical sleeve)Cylindrical (requires keyway)Installation method The conical sleeve clamps the shaft and does not require key slotsKey connection, dependent on the keyway on the shaftAxial diameter compatibility It can be adapted to different shaft diameters by replacing the conical sleeveA custom belt pulley is required for the fixed shaft diameterMaintenance convenience Quick disassembly and assembly, suitable for frequent maintenanceAssembly and disassembly require moving the shaft or removing adjacent componentsTorque transmission Depends on the friction force of the conical sleeve (requires correct tightening of bolts)Mechanical meshing dependent on the key (torque transmission is more direct)Typical applicationsUsed in mining machinery, fans, conveyor belts (needs to be flexibly adapted)Motor, reducer, fixed equipment (high torque scenarios)Typical applications of AK pulleys Typical applications of BK pulleys Mining crushers Electric motors and reducers Fans / conveyor belts High-torque equipment European standard cone sleeve systemAmerican standard / general equipmentType of transmission beltV-belt pulleyFlat belt pulleySynchronous belt pulleyMulti-ribbed belt pulleyStructural styleSolid pulleyFlange pulleyO-ring pulleyElliptical spoke pulleyWay to installFixed pulleyMobile pulleyApplication scenariosIndustrial equipment, automobiles, agricultural machinery, household appliances.Sprocket way to install1.Before assembling the transmission device, check the sprocket groove to ensure there are no scratches or sharp edges, and all dimensions should comply with the standards.2.Clean the dirt from the mating surfaces of the shaft, cone sleeve, and sprocket, and then attach the cone sleeve and sprocket onto the shaft.3.The toothed half-hole on the sprocket matches the non-toothed half-hole on the cone sleeve (this hole is called the installation hole and is indicated in Figure 3, with 2 such holes on the 1008-3030 cone sleeve and 3 on the 3525-5050 cone sleeve). The non-toothed hole on the sprocket matches the toothed hole on the cone sleeve (this hole is called the disassembly hole and is indicated by· in the figure, with 1 such hole on the 1008-3030 cone sleeve and 2 on the 3525 cone sleeve).4.Move the cone sleeve to the ideal position, gently pull the sprocket onto the cone sleeve, and insert the internal hexagonal bolt into the installation hole.5.Use a hexagonal wrench to gradually tighten each bolt alternately until the torque shown in Table 1 is reached. (Note: To ensure a tight fit, each bolt must be evenly tightened.)6.If a keyway is to be assembled, first place the key in the keyway of the shaft, and then assemble the cone sleeve.7.After running the lower drive for a period of time, stop the machine and check the tightening degree of the bolts.Disassembly 1. Loosen all the bolts. Remove one or two bolts according to the number of the disassembly holes. Lubricate the bolt threads and the bolt tips with oil. Insert the bolts into the disassembly holes as shown in Figure 3.2. Tighten the bolts alternately until the cone sleeve and the pulley are released.3. Remove the cone sleeve and the pulley from the shaft (if the cone sleeve and the shaft are too tightly attached, use a flat screwdriver to gently enlarge the straight slot of the cone sleeve. Do not exert excessive force to prevent the cone sleeve from bursting.)Company ProfileSMCC-Qingdao Star Machine Technology Co., LtdWe have a global sales network and service system. At present, there are more than 150 distributors and business cooperative partners in more than 30 countries, including Vietnam, Korea, Thailand, Bangladesh, Singapore, Philippines, Malaysia, Russia, Kazakhstan, Uzbekistan, Ukraine, Iran, Saudi Arabia, Chile, Brazil, Canada, the United States, Mexico, Poland and other countries. "Honesty, efficiency, coordination, innovation" is our corporate culture. "First class quality, reasonable price and timely service" is is our company's unremitting pursuit.We are a enterprise groups engaged in researching, production, marketing and technical services. Covering 80, 000 square meters, now we have 816 employees including 167 senior professional technicians and a global network of sales and service system. The 219 sets of advanced automatic production equipment provide guarantees for high product quality. We can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services. Packaging & ShippingOur foreign trade company has always adhered to the packaging concept of "safety first, detail supreme". The packaging of all products is carried out in accordance with international standard procedures: a professional team uses high-quality cushioning materials for multi-layer protection to ensure stability and impact resistance during transportation; each package must undergo strict quality inspection before leaving the factory, and is equipped with industrial-grade sealing tape and waterproof outer boxes to effectively prevent moisture and damage; the entire packaging process is completed in a professional warehousing environment with real-time monitoring systems; each package is accompanied by a unique tracking number, supporting full-process logistics visualization management; in addition, we also provide comprehensive cargo insurance services, covering various types of guarantees, to ensure that your goods can be safely delivered to all parts of the world, truly achieving "packaging without worries, receiving with peace of mind".
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