上充通大学 Shanghai Jiao Tong University Advantages of Different Transmissions3 Advantages of Chain Drives(low-speed,high-torque) 1.Shaft center distance variation may be more easily accommodated than with gear drives 2. Chains are easier to install and replace than belts because the center distance between driven and driver units need not be reduced for installation(splice and link belts overcome this objection at the cost of lower power ratings). 3. Chains require no tension on the slack side(松边)，so that bearing loads are reduced. 4. Chains do not slip or creep as belt drives do (except toothed belts). 5. Chain drives more compact because sprocket diameters are smaller and chains are narrower than sheaves and belts for same power transfer. 6. Chains do not develop static charges 7. Chains do not deteriorate (with age,heat or oil and grease. 8. Chains can operate at higher temperatures than belts. 1010 Advantages of Different Transmissions3 Advantages of Chain Drives(low-speed, high-torque) 1. Shaft center distance variation may be more easily accommodated than with gear drives 2. Chains are easier to install and replace than belts because the center distance between driven and driver units need not be reduced for installation (splice and link belts overcome this objection at the cost of lower power ratings). 3. Chains require no tension on the slack side（松边）, so that bearing loads are reduced. 4. Chains do not slip or creep as belt drives do (except toothed belts). 5. Chain drives more compact because sprocket diameters are smaller and chains are narrower than sheaves and belts for same power transfer. 6. Chains do not develop static charges 7. Chains do not deteriorate（老化） with age, heat or oil and grease. 8. Chains can operate at higher temperatures than belts