Department of mechanical engineering, university of ibadan, ibadan, nigeria. Concentric cam followers gc gcu and nukr series are supplied with two nuts. Skf cam followers studtype track rollers are designed to run on all types of tracks and to be used in cam drives, conveyor systems, etc. Analysis and usage of cams and their followers engineering. Cams can provide unusual and irregular motions that may be impossible with the other types of mechanisms. Introduction of cams and types of cam and followers. Cam follower with grease nipple thk technical support. The cam follower then dwells for 60o and this is followed by the fall. This cam follower is suitable for use in a broad range of linear and motion translation applications including process transfer lines, ram support rollers, conveyors, machine tools, and indexing equipment, among others. High performance maintenancefree cam followers for belvac neckers. The cam rotates usually at constant speed and drives the follower whose motion depends upon the shape of the cam. Track rollers can handle applications with a combination of both radial and axial loads.
The transformation of one of the simple motions, such as rotation, into any other motions is often conveniently accomplished by means of a cam mechanism a cam mechanism usually consists of two moving elements, the cam and the follower, mounted on a fixed frame. You can view the entire cam follower interchange listing in pdf format. This allows to adjust the valve clearance without removing the camshaft. Cam followers come in a vast array of different configurations, however the most defining characteristic is how the cam follower mounts to its mating part.
A882 types of the cam follower types and features popular type cam follower model cf specification table. Cam runner idlerrollerscam followers cam runner idlerrollers give designers a new way to control linear motion and support the lighter loads that dont require the heavyduty performance of osborns load runners idlerrollers. They are available in two basic mounting styles for use in mechanical automation or linear motion applications. Mar 18, 20 cam is a very important topic in the kinematics of machines or theory of machines. Your proven service leader with reliable delivery since 1972. What are the applications of different types of cam followers. From a functional viewpoint, a cam and follower arrangement is very similar to the linkages. Followers free delivery possible on eligible purchases.
The greatest distance or angle through which the follower moves or rotates 25. It contains needle bearings and is used as a guide roller for cam mechanisms or linear motion. Softer or harder materials may result in decreased life, particularly under high. Anyone hear of somebody using some form of a sleeve that rotated on the follower pin for a crude bearing. The unit can be installed and maintained without concern for installation space, thereby boosting operating e. Analysis and simulation of cam follower mechanism using. A cam is a rotating machine element which gives reciprocating or oscillating motion to another element known as follower. Types and model numbers of the cam follower the cam follower is divided into several types as indicated in table 1.
The cam accepts an input motion rotary motion or linear motion and imparts a resultant motion linear motion or rotary motion to a follower. A project report on cam follower utility in internal combustion engine 1. Cam followers with urethane roller, crowned, with hex. Feb 03, 2016 a cam is a rotating or sliding piece in a mechanical linkage that drives a mating component known as a follower. A cam must produce a constant acceleration of 1 ms2 over a rotation of 30o followed by constant deceleration over the next 30o.
As ina bearings distributor, nodes bearing supplies ina cam follower bearings. The cam is the driver member and the follower is the driven member. Description of the cam follower p 5 featuresofthecamfollower 1. Cam followers and track rollers from grainger can withstand a variety of mechanical applications. A wide array of products including patented rbc roller cylindrical roller and needle roller cam followers both stud and yoke styles. A cam follower, also known as a track follower, is a specialized type of roller or needle bearing designed to follow cam lobe profiles. As cylindrical rollers are used, these follower bearings can withstand heavy radial loads as well as bidirectional axial loads. Cam follower speed limit rpm rbc roller cam followers. Cam followers straight slot, crowned misumi misumi usa. Me 4201 machine design lab section 3 group 4 experiment 4camfollower experiment jordan gautreau khalil hamed dallas amond michael mannino abstract a camfollower system is a very simple mechanism used to control and convert one type of motion to another type of motion. Nov 25, 2014 a project report on cam follower utility in internal combustion engine 1.
In the cam follower with seals, a special thrust washer is employed for the sliding surface inside the bearing to improve heatseizure resistance. Alongside, that device was found in the 4th century in aljazari design. A project report on cam follower utility in internal. Eccentric cam followers gcr gcur nukre series are supplied with eccentric bushing, one nut, one lock. Misumi offers free cad download, short lead times, competitive pricing, and no minimum order quantity. In diagram 1 the cam is in a vertical position and it slow rotates in an anticlockwise direction. The quadrant that it rubs against is worn down about one eighth inch. Cam follower with a tapped hole for greasing model cft speci. Use the interchange to enter your part number to find the matching rbc cam follower. Since the cam follower is supported in a cantilever position, the mounting hole diameter should be prepared without play between the stud and the hole especially when heavy shock loads are applied. Abc cat0 to 31 manufacturer of smith bearing cam followers. Mcgill cf 34 sb flat cam follower inch camrol cf series, 0. Cam follower roller bearings stud type track follower. Cam follower with grease nipple a hex wrench can be used to.
The transformation of one of the simple motions, such as rotation, into any other motions is often conveniently accomplished by means of a cam mechanism a cam mechanism usually consists of two moving elements, the cam and the follower, mounted on a. Mcgill cf 6 s flat cam follower inch camrol cf series, 6. In the application of cam follower or cam yoke roller bearings lift truck mast rollers, for instance, it is common to employ formed structural steel sections as bearing. Patel me scholar, department of mechanical engineering, north maharashtra university, jalgaon abstract the objective of this paper is to modelling design and analysis of a cam and follower. Its thickwalled outer ring helps minimize deformation under heavy radial and shock loads.
A cam follower, also known as a track follower,1 is a specialized type of roller or needle bearing designed to follow cams. Motion of the follower as the cam rotates the follower moves upward and downward. Ina cam followers and track rollers grainger industrial. Cam followers corporate offices 308 springhill farm road fort mill, south carolina 29715 telephone 8035488500 fax 8035488599 distributor customer service toll free 8005236572 fax 8035488594 linear customer service toll free 8004623399 fax 2157819830 this product section has been excerpted from our full. We help you find the heavy duty truck parts that you need. Description of the cam follower p 3 featuresofthecamfollower the cam follower is a compact and highly rigid bearing with a shaft. The cam and follower mechanism is mostly used in the ic engines for driving the valves. Bmw engine camshaft follower 121748884 ina 4200049100. Apart from that, the mechanism is often used by engineers as a part of the i. A cam follower roller bearing also called track follower is a specialty roller bearing designed to follow tracks or cams and in a wide range of linear motion systems.
Ina is an oe supplier for valvetrain, camshaft phasing, belt drive bearings, tensionersdampers and idler assemblies and is a common component in quality drive belt. Tushar kiran et al analysis and simulation of cam follower mechanism using polynomial cam profile 214 int. Cam follower roller bearings, stud type inch and metric. Although theyre dimensionally interchangeable with conventional needlebearing cam followers. Cam follower series with reliability and actual operation results cam follower series with a nd c tulop eri s full product lineup to page to page to page to page to page 7 the product lineup including the miniature type with very small dimensions, type provided with a thrust washer strong in an mounting error, and. Clearance the radial internal clearances of cam followers are shown in table 4. The mini roller which thanks to the needle roller bearing has the highest loaddiameter capacity ratio. We have a wide range of these bearings in stock, including kr, kre, krv, nukr, nukre, pwkr series, and even ina f series cam follower bearings for printing machines are available in stock. Our standard integral flange construction of stud version bearings helps maintain bearing. Krpp stud type cam follower bearings offer axial guidance with plastic washers on both sides, while kr cam followers feature a gap seal on both sides. Although this solution is very appealing for servicing, the available contact surface for the cam follower is limited.
A1920 to download a desired data, search for the corresponding model number in the technical site. Ina kr40pp cam follower, stud type, sealed, metric, steel. This analysis is an important step for fixing an optimum size of a cam and. A familiar example is the camshaft of an automobile engine, where the cams drive the push. Cam follower outer ring seal side plate stud needle roller cage fig. Pdf a formclosed camfollower mechanism for a breath.
The cam converts rotary motion of one element into reciprocating linear motion or into oscillatory motion. The cam follower is a compact bearing with a highrigidity shaft and a builtin needle bearing. Solved problems based on cam profiles engineering tutorials. Our cam followers can support the high radial and axial loads which might arise from improper alignments. This paper presents a method for designing of a radial cam on the worksheet of mathcad including the calculation of followers displacements, values of its velocities and accelerations, the optimization of the contour of a cam by choosing the. For the use of cam followers with convex outer ring as bearings, please consult nadella technical. Here we are presenting some solved problems based on cam profiles. Almost always the cam is the driver and the follower is the driven. The driver is called the cam and the driven member is called the follower. A circle drawn from the cam center and passes through the pitch point is called pitch circle stroke.
A division of the schaeffler group, ina is a part of one of the largest automotive parts manufacturers in the world. All mcgill inch studtype cam followers include an oil hole plug for closing off each unused hole to help prevent contamination. A cam is a mechanical device used to transmit motion to a follower by direct contact. Follower driven in a cam follower pair, the cam normally rotates while the follower may translate or oscillate. The accuracy of the output or the follower will depend on the cam and follower being in contact at all times. Application of cam and follower types of cams types of cam followers concept and definition. All categories needle roller bearings cam followers view items. Cam is a very important topic in the kinematics of machines or theory of machines. Krpp stud type cam follower bearings offer axial guidance with plastic washers on both sides, while. The nadella group is the right partner for you when it comes to needle bearings, linear guide systems, telescopic guides, ball screw guides, rod ends and spherical plain bearings, as well as electric cylinders, since the nadella group is your absolute specialist for mechanical motion technology and offers you solutions in the form of products, knowhow and top quality service.
They are based on either needle or cylindrical roller bearings. Experimental study of engine camfollowers enrico ciulli 1, bruno piccigallo 2, dagoberto vela 1department of mechanical, nuclear and manufacturing engineering, university of pisa, italy email. Simulation model of cam follower mechanism with 345 polynomial cam profile. Mcgill heavy duty camrol bearings are full complement cylindrical roller bearings, cam follower bearing featuring black oxide treated bearing steel. Millions of users download 3d and 2d cad files everyday. Diagrams one to six show a rotating cam pushing a follower up and then allowing it to slowly fall back down. Cf 12v uur table 1 types and model numbers of cam followers type shape stud with a hexagon socket stud with a driver groove with a tapped hole for greasing. The valve lifter, in turn, is a cup closed at the top by read more.
Mcgill cf2 12s cam follower, standard stud, sealed. Cam follower pin on 52 8n hydraulics ford 9n, 2n, 8n. I replaced the cam follower pin last night on my 8n. A1928 basically the same as the popular type cam follower, this model is provided with tapped holes for piping on the stud head and the thread. What are the applications of different types of cam. Cam followers are bearings provided with a stud in which needle rollers are assembled in a thick outer ring, having a small coefficient of friction and excellent. Smaller cam followers with hexdrive socket can only be relubricated through threadedend. B808 it is a popular type of cam follower provided with a driver groove on the head of the stud. Although we checked the errors, but if you mark some error, let us known in the comment box. Mar 18, 20 introduction of cams and types of cam and followers. Experimental analyses are done with the objectives of.
Choose from assorted cam follower types, including full complement needle rollers, stud, heavy stud, crowned and yoke. Yoke rollers and motion control bearings provide a lowcost and easilymounted solution for applications that require linear movement or the translation of rotary motion to axial motion. The hydraulic lifter comprises a cam follower that is moved up and down by contact with the cam profile, and an inner bore into which the valve lifter is closely fitted and retained by a spring clip. The design of camfollower systems is a process that requires highly computerized procedures to give the most optimal performance. Cam followers 3 cam followers cam followers are available in two types. Example of cam action concept and definition of cam. However, the manufacturing of cams is expensive and the wear effect due to the. Instead of an inner ring, they have a threaded solid stud pin.
Modelling, design and analysis of cam and follower a. A lubrication grease fitting must be installed in the housing of the equipment. Cam followers are bearings with a stud incor porating needle rollers in a. If your mechanic didnt retime that cam follower when he rr that socalled gasket, maybe thats why you threw the rod right away. This ina kr series steel studtype cam follower bearing with seals and needle rollers is designed for cam and tracktype applications, and supports high radial loads and axial loads resulting from slight misalignments. Most suitable as a guide roller for cam mechanisms and linear. In cam followers nukr series the nipple is always hided inthehexagonalsocket the radial hole in the stud, if not used, is closed by the housing of the cam follower. A formclosed camfollower mechanism for a breath simulator machine 3 3. Each listed load capacity is subject to the reference bearing diameter of. Model cfha eccentric cam follower with hexagon socket cylindrical outer ring. Camfollower report final me 4201 machine design lab. A cam has two parts, the follower and the cam profile.
Cam follower series with reliability and actual operation results cam follower series with a nd c tulop eri s full product lineup to page to page to page to page to page 7 the product lineup including the miniature type with very small dimensions, type provided with a. Cam mechanisms are widely used because with them, different types of motion can be possible. The mini roller which thanks to the needle roller bearing has the highest load diameter capacity ratio. Email this page download pdf download pdf printable page.
The cam and follower mechanism is widely used for operating the inlet and exhaust valves of internal combustion engines. In a cam follower pair, the cam normally rotates while the follower may translate or oscillate. Cam follower pin on 52 8n hydraulics discussion in the ford 9n, 2n. Most suitable as a guide roller for cam mechanisms and linear motion of automated machines and dedicated machines. Features of the cam follower outer ring seal side plate stud needle roller cage fig.