Decades later, timken is a leader in the friction management and power transmission industries and continues to lead in advancing bear ing technology through. Our customer centric culture emphasizes the highest quality standards, automated supply chain capabilities, and customer satisfaction. Timken super precision bearings for machine tool applications. Timken ap rail journal bearings are prelubricated at the factory. To make sure that the bearing is irmly seated against the axle illet, apply the seating tonnage shown in table 1 to the bearings after the surge of the pressure gauge indicates that the bearings. The hdl seal, standard on all timken ap 2 bearings, provides the best protection. Turn to timken to move ahead of the comptition and stand out as a leader in your industry. Using the timken bearing interchange the timken bearing interchange lists manufacturers part numbers, manufacturer name and the corresponding timken part number. Search in timken catalogs and technical brochures on directindustry and find the information you need in 1 click. Sp bearing type differs from the ap bearing in that sp bearings have labyrinth. Based on the design of the ap bearing, timken s ap 2 rail bearing is designed for heavier loads. Throughout 2020 timken kept essential industries moving, delivered solid financial performance and advanced our growth strategy for the benefit of all our stakeholders. Browse part number hm120848 hm120817xd, tapered roller bearings tdo tapered double outer imperial in the the timken company catalog including part number,item name,description,series,cone part number,cup part number,design units,d bore,d cu. The industry was challenged to improve efficiency and productivity and to lower costs.
Its compact design incorporates fewer components and reduces bearing weight. Proper bearing maintenance and handling practices are critical. Please contact your timken representative if specialized equipment is used that may require additional lubricant or subsequent lubricant in service. To meet these growing challenges of increased loads, speeds and longer wheel life, timken developed the ap2 bearing for freight cars. Timken ap bearing assembly description of parts the narrow adapter shown in fig. Timken ap integrated tapered roller bearings assembly, heavy medium type tdo, series. Timken offers a 7200wn light, 7300wn medium and 7400wn heavy series singlerow, angular contact bearings, which are designed for combination loading with highthrust capacity in one direction. Ap bearing installation and maintenance instructions. Bearing types and cages engineering 6 timken tapered roller bearing catalog singlerow bearings ts singlerow this is the basic and the most widely used type of tapered roller bearing. Bearing reconditioning rail bearing service corporation, a whollyowned subsidiary of the timken company, reconditions bearings and related parts used in.
This can be attributed to many factors including the bearing s high load carrying capacity and its adaptability to a wide variety of applications. It also reduces component wear rejection and axle fillet damage, decreasing potential axle failure and ultimately reducing the occurrence of axle grooving. These seals must be replaced only with the appropriate timken brand seal. Shelf life information is based on timken and industry test data and experience. Slurry ingress test results of the optimized timken type e. A better design a better bearing why the ap 2 is the bearing of choice timken ap 2 bearing other bearing design reduction in bearing reduction in axle fillet damage. Timken tapered roller bearing catalog timken pdf catalogs. In addition to railroad applications, ap bearings are successfully used in many types of industrial applications. Sep 03, 2019 timken s spherical plain bearings consist of a spherically ground inner ring housed in a mating outer ring without any rolling elements. Aptm bearings for industrial applications timken pdf. The ap 2 bearing also offers improved safety and reliability and runs at lower operating temperatures and lower torque than an ap bearing. The chart below shows dimensions for locknuts and lockplates used in the mounting of straight bore bearings on shafts. Any inner race including roller set can be matched with any outer race within the same series providing that the same type of bearing.
When you turn to us, you receive more than highquality products and services. Timken bearings catalog dimension chart size nodes bearing. To ensure that bearings are properly seated, bearing or wheel presses should be equipped with relief valves so that the specified pres. Analytical analysis of the new, optimized timken bearing compared to a standard timken bearing used widely by most type e suppliers and a new bearing from a leading industry competitor. Articulating joints and get the cross reference guide is running on the bearing spread, including part amongst different options for the globe. Timken bearings catalog dimension chart size nodes.
Timken engineered bearings feature precision tolerances, proprietary internal geometries and quality materials. Similar in concept to ap bearings, the sp bearing is designed for rail journal bearing applications. Timken ap integrated bearing assemblies are selfcontained, preassembled and prelubricated bearings. Ap bearings timken pdf catalogs technical documentation.
Bearing damage analysis reference guide maintenance. To ensure that bearings are properly seated, bearing or wheel presses should be equipped with relief valves so that the. This selfcontained, prelubricated bearing package quickly became the design of choice for the industry. In some cases, its caused by contact fatigue inclusion origin, point surface origin, geometric stress concentration and microspalling. Bearing series in all the part numbering systems the term bearing series is used to describe bearings having the same basic internal geometry e. Timken releases 2020 annual report, reflecting companys position as a highperforming industrial leader amidst global pandemic. To use this application, please enable javascript in your browser and refresh this. Timken offers one of the broadest ranges of rugged housed units for spherical, tapered and ball bearings.
When integrated with innovative timken seal designs and polymer cages, timken s ap 2 bearing can offer significant energy efficient benefits while providing railroad operators with unparalleled performance. The narrow adapter shown below, available from the timken company, can be used in many. Js file for each js file for the shaft to a few minutes. Inch accessories locknut and lockwasher on the timken. The difference is in design history of the ap 2 bearing why the ap 2 is the bearing of choice timken ap 2 bearing other bearing design reduction in bearing failure due to water ingress. The patented timken ap 2 design provides for reduced journal axle flexure and less fretting wear. More than 50 percent of bearings that are submitted to timken bearing service and repair specialists have not reached their calculated lives. Timken ap bearings may be installed or removed with a bearing press, wheel press or with portable fixtures, depending on production requirements. Numbers are sorted ahead of letters in the same position.
Were sorry but this application doesnt work properly without javascript enabled. The chart below shows dimensions for locknuts and lockwashers used in the mounting of straight bore bearings on shafts. The ap 2 bearing offers improved safety and reliability. This illustrates a typical ap bearing mounting for crane bridge and trolley axle using recessed end cap. Skf vkba 3643 wheel bearings industries and applications. The rail bearing reduces bearing set outs fuel cost and bearing failure due to water ingress.
Ideal for use in passenger cars and locomotives, the. Timken revolutionized the rail industry by introducing the first selfcontained, preassembled, prelubricated journal roller bearing. Inch accessories locknut and lockplate on the timken company. Our tapered, spherical, cylindrical, thrust, ball, plain, miniature, precision, spherical plain, rodend, journal and housed unit bearings deliver strong performance, consistently and reliably. Advantages of timken ap bearings selfcontained unit provides substantial. Here the first 1 pages from the catalog class k ap 2. The sp bearing type differs from the ap bearing in that sp. It consists of the innerring assembly and the outer ring.
Timken ball bearings, cylindrical roller bearings, housed units, plain bearings, precision bearings, spherical roller bearings, tapered roller bearings, thrust bearings, seals, maintenance tools, couplings and universal joints, wheel hub units, etc. To make sure that the bearing is irmly seated against the axle illet, apply the seating tonnage shown in table 1 to the bearings after the surge of the pressure gauge indicates that the bearings have contacted the axle illet. The ap 2 bearing offers improved safety and reliability and runs at lower operating temperatures and lower torque. Maximize bearing to timken bearing set reference for subscribing to help identify critical. In fact, the weight savings per car using ap 2 bearings in place of an ap bearing can reduce the weight of a railcar by several hundred pounds. Ap bearings size and dimensional data interempresas. While this type of housing is currently unavailable through timken, most bearing distributors provide a selection from other manufactuerers. Ideal for use in passenger cars and locomotives, the design meet rail industry standards. Turn to timken to move ahead of the competition and stand out as a leader in your industry. This clamped wheel design is shown on a drive axle. Timken shelf life and storage shelf life and storage of greaselubricated bearings and components to help you get the most value from our products, timken provides guidelines for the shelf life of greaselubricated ball and roller bearings, components and assemblies. Known as the cadillac of taper bearings, they can be found wherever robust performance is a requirement. Ap bearings size and dimensional data the timken company class car bearing cone cup and size capacity series bore o. Inch accessories locknut and lockwasher on the timken company.
Optional auxiliary parts can be added to suit a wide range of mounting configurations. Shelf life information is based on timken and industry test data and experience after a product is removed. This section will describe the bearing selection process using different methods based on selection criteria and application details. Timken ap 2 integrated bearing is designed for heavier loads. Hm124600, 41116 in bore dia, 71116 in outside dia, 2 rows, 558 in width, open closure, 152000 lb dynamic, steel bearing, stamped steel cage, 65 to 250 deg f, uncoated. Timken engineering manual timken pdf catalogs technical. Tm bearings for industrial applications timken company. Figure 1 timken ap bearing assembly and typical axle end caps.
Industrial bearing maintenance manual especial rolamentos. Variable preload setting adaptable to manual, tape, or. Ap bearing installation and maintenance instructions ducasse. Part number hm3444 hm3420xd, tapered roller bearings. Ap2 integrated bearing assemblies the timken company. The 7000wn bearings are manufactured with better than abec 1 inner ring bore tolerances and abec 3 running accuracy. For spherical bearings, select from solidblock steel housings and splitblock sntsaf castiron housings. C 90 and c a90 are radial and thrust values for a singlerow, c 902 is the tworow radial value 4 based on 1 x 10 6 revolutions l 10 life, for the iso life. Timken is a recognized leader in the bearing industry, with products that are engineered to optimize operational efficiency. While this type of housing is currently unavailable through timken, most bearing distributors provide a. Another type of mounting utilizes a full bore housing see page 21. Dimensions are presented according to bearing bore size and are applicable to bearings in the various series e. Installing and maintaining timken ap and ap2 bearings.
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