Pulley diameter pulley groove angle with a relationship, different types of groove angle pulley pulley groove angle recommended number of different diameters in the range are as follows: O type pulley pulley 50mm ~ 71mm diameter in the range of 34 degrees when; in 71mm ~ 90mm at 36 degrees,> 38 degrees at 90mm; A-type pulley pulley 71mm ~ 100mm diameter in the range of 34 degrees when, 100mm ~ 125mm at 36 degrees;> 38 degrees at 125mm; B-type pulley pulley 125mm ~ 160mm diameter in the range of 34 degrees when; when 160mm ~ 200mm 36 degrees,> 38 degrees at 200mm; C-type pulley pulley 200mm ~ 250mm diameter in the range of 34 degrees when, 250mm ~ 315mm for the time 36 degrees,> 38 degrees at 315mm; D-type pulley pulley diameter in the range 355mm ~ 450mm 36 degrees when the pulley,> 38 degrees at 450mm; E-type 500mm ~ 630mm at 36 degrees,> 38 when 630mm 1. Check the pulley groove of the installation, ensure that no injuries or sharp edges, all sizes are standard; 2. Clean the surface of all the components, such as the pulley hub hole, sleeve, bolt hole and so on. Set into the cone pulley, so that all screw holes are aligned. 3. Screw (TB 1008-TB 3030) and thread (TB 3525-TB 5050) on the back oiled screwed mounting holes, but it would not tighten. 4. Clean the surface of the shaft, which has been fitted with a drogue wheeled onto a predetermined position on the shaft to see if the belt wheel alignment. 5. When using the keyway, you must first insert it into the hub of the pulley manufacturers in the hole between the keyway and hub have to have a certain tolerance. 6. Use conform DIN911 standard hex wrench pulley selection, alternately gradually tightened the mounting holes evenly bolts until the torque shown in the table below. 7. operation in a short time (0.5 to 1 hours), check the bolts tightening torque, if necessary, re-tighten. 8. In order to prevent the connection holes foreign invasion pulley price, fill the hole with grease. Removal 1. Loosen all bolts, remove one or two screws, oil lubricated bolt and bolt pattern according to the number of cutting-edge disassembly hole insert the bolt holes as shown below disassembly. 2. Tighten the bolts alternately until the sleeve and pulley release. 3. Remove the sleeve and the pulley from the shaft. _ State hung mechanical pulley manufacturers (certified) _ pulley provided by state-hung Machinery Co., Ltd. in Guangzhou. Hung Machinery Co., Ltd. Guangzhou state (www.gzbhjx.com) is Guangzhou, casting leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hong Machinery leadership in the state with the staff warmly welcome all inquiries negotiations to create the state machinery hung a better future.