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Industrial Maintenance Manual

Industrial Maintenance Manual
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Industrial Bearing Maintenance Manual

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WARNING Failure to observe the following warnings could create a risk of serious injury. Proper maintenance and handling practices are critical. Failure to follow installation instructions and to maintain proper lubrication can result in equipment failure. Never spin a bearing with compressed air. The rolling elements may be forcefully expelled. CAUTION Failure to observe the following cautions could create a risk of injury. Do not attempt to disassemble unitized bearings. Remove oil or rust inhibitor from parts before heating to avoid fire or fumes. If a hammer and bar are used for...

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Timken - Where You Turn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 General bearing handling and inspection . . . . . . . . . . . . . . . 9 Shaft and housing requirements . . . . . . . . . . . . . . . . . . . . . . . . 31 Shaft and housing tolerances abma Standard 7 . . . . . . . 37 Tapered roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 spherical roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Cylindrical roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Needle roller...

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Timken - Where You Turn

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TIMKEN - WHERE YOU TURN Timken - Where You Turn Maintenance professionals around the world turn to Timken to help improve the performance and extend the life of their equipment. The information in this manual will help you follow proper industrial maintenance practices to get the most out of your Timken products and the equipment in which they operate. You will find practical information describing how to install, adjust, lubricate and maintain all of the primary types of anti-friction bearings. We have also included additional information on maintenance tools and proper lubrication....

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General bearing handling and inspection General Bearing Handling And Inspection. . . . . . . . . . . . . . . . 11 . Bearing Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Removing Bearings From Equipment. . . . . . . . . . . . . . . . . . . . . . 12 Damaged Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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GENERAL BEARING HANDLING AND INSPECTION General Bearing Handling and Inspection Bearings are a vital component in major industrial equipment. Bearing problems can result in costly downtime, equipment damage and breakdowns. In addition, large industrial bearings represent a significant capital investment. To attain reliable operation with high equipment performance and the lowest possible maintenance costs, it is essential to follow proper handling practices. This includes bearing storage, removal, cleaning, inspection and installation. The useful life of any bearing depends to a great...

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GENERAL BEARING HANDLING AND INSPECTION Removing bearings from equipment Each type of bearing design has a unique removal process. Regardless of the bearing type, the bearing must be removed with extreme care. If done incorrectly, you can damage the bearings, shafts or housings, requiring expensive repairs. For smaller bearings, there are a variety of pullers available to assist with bearing removal (Fig. 1). Information concerning special pullers or other removal devices can be obtained by contacting your Timken representative. Fig. 2 Eyebolts can be inserted into lifting holes Fig. 1...

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GENERAL BEARING HANDLING AND INSPECTION Fig. 3 Smaller bearings can be cleaned in a wash tank Fig. 4 Tanks are heated with electric coils and a pump is used to agitate the cleaning solution Inspection WARNING Failure to observe the following warnings could create a risk of serious bodily harm. Proper maintenance and handling practices are critical. Failure to follow installation instructions and to maintain proper lubrication can result in equipment failure. Never spin a bearing with compressed air. The rolling elements may be forcefully expelled. Alkali cleaners, such as trisodium...

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GENERAL BEARING HANDLING AND INSPECTION Chips on the bearing seat are trapped between face of bearing and shoulder Burrs on shoulder or bearing seat valuable clues that can help analyze and identify possible causes, leading to corrective actions that will help ensure longer bearing life in the replacement bearing. There are several Timken resources available to assist you in analyzing bearing damage, including online resources at Timken. com and publications with photos representing common types of bearing damage. Contact your Timken representative for more information. Bearing repair Fig....

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GENERAL BEARING HANDLING AND INSPECTION Fig. 6 Bearings can be heated in a pan or metal container filled with oil Thoroughly clean all machine components near where the bearing will be installed, giving special attention to the mounting surfaces and housings. Housings should be cleaned, including blowing out the oil holes. If the equipment has blind holes where air is ineffective, use a magnetic rod to remove metal chips that might have become lodged there during machining or maintenance. A heat lamp can also be used to heat rings, and the temperature regulated by adjusting the distance...

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GENERAL BEARING HANDLING AND INSPECTION CAUTION Failure to observe the following cautions could create a risk of injury. If the bearing is to be reused or returned for repair, do not use heat from a torch. Extreme heat from a torch can alter the bearing hardness and metallurgical structure, resulting in irreparable damage. Keep the bearings away from any localized high-heat source that may raise the bearing temperature too high, resulting in race hardness reduction. When heating bearings, be sure that they have enough time to fully heat. Bearings typically require 20 to 30 minutes of soak...

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