Split plummer block housings sns advantages of the detailed design a large number of details in the housing design that are systematically matched to practical application allows a particularly flexible and economical usage of plummer block housings sns, figure. Assembly and details machine drawing pdf slideshare. In this project, you will create the components of the plummer block assembly, as shown in. Benefits include a facility for easy mounting and dismounting of preassembled shafts. Plummer block is used for long shafts, requiring intermediate support. Plummer block center, and its value is 12 the width of the setting washer. In the fixed plummer block, to prevent axial displacement of the bearing, 2 locating rings are installed, one on either side of the bearing. Skf split pillow block housings are modular systems, designed to maximize the performance of bearings mounted in them. Find the exact bearing you need using ntn bearing finder, our powerful online catalog platform. A half sectional pictorial view of plummer block is shown in fig 7. Timken snt split plummer blocks stronger outside timken engineered split plummer block. The detailed drawing of a pedestal bearing is shown in image below. A wide variety of plummer block bearing options are available to you, there are 371 suppliers who sells plummer block bearing on, mainly located in asia. Study the figures carefully, understand the functionality of the components and attempt the.
You can also view our market and category specific catalogs below. Pipe vice assembly 1 in this project, you will create all components of the pipe vice assembly, as shown in figure 1, and then assemble them. The rotation of the bush inside the bearing housing is. Crosshead assembly 1 crosshead assembly figure 2 the exploded state of crosshead assembly figure 1 the crosshead assembly in this project, you will create all components of the crosshead assembly and then assemble them, as shown in figure 1. Plummer block assembly n drawings split plummer block design allows for easy mounting and dismounting of pre assembled shafts. Housing material for a pillow block is typically made of cast iron or cast steel. The skf assortment includes units compliant with iso standards, north american standards, or japanese industrial standards jis. The twopart housing, which has no provision for relubrication, is ordered separately from the insert bearing. Plummer block housings sn3028, sn3126, sn524, sn620 and larger are provided with eye bolts. Structure tightening bolt the bolt protects the plummer block against loosening due to vibration and impact. Answer any one question from each of the parts a, b and c. Assemble all the parts and draw the following assembly views. Assemble the parts and draw the following views of the assembly. Strength of plummer blocks, and combination with bearings15.
Plummer block bearing assembly pdf fewer bearing replacements and less maintenance. This is the only book on machine drawing, incorporating the. The assembly ensures reciprocating motion along a straight line for the piston rod and. Axial displacement of the shaft is then impossible fig. Figure 1 the pipe vice assembly pipe vice assembly figure 2 views and dimensions of the base. This video helps you to draw the assembled front and top view of plummer block manually. Design and assembly of plummer block pedestal bearing. The top countries of suppliers are china, india, from which the percentage of plummer block bearing supply is 95%, 3% respectively. Also you will create an exploded state, shown in figure 2. The concept of using a drawing reference versus a drawing block is very important. Plummer block housings can be used with highcapacity spherical roller bearings or. The enclosed drawing shows the assembly of the plummer block. The piston rod 2 is secured to the crosshead block by means of the cotter 5.
Fag split plummer block housings of series snv for shaft diameters of 20 to 160 mm and 34 to 512 inches. The dimensions of the components are given in figures 2 and 3. An inseparable assembly drawing represent items which are separately fabricated and are permanently joined together e. Plummer block assembly n drawings files 3d cad model. To draw the components of plummer block and to assemble them using solid works. Steam stop valve, spring loaded safety valve, feed check valve and air cock. Available in a variety of metric shaft sizes, timken snt plummer block units offer the choice. Creating a 3d assembly drawing in this chapter, you will learn the following to world class standards. Drawing on several decades experience in the development of housings, ntnsnrs engineers have integrated numerous practical details into the design of snc and sncd bearings. Pdf machine parts drawing prashsant singh academia. What is the advantage of plummer block over a simple. Ybearing plummer block units with cast housing d 12100 mm. Open the assembly part then open the all parts one by one. To ensure effective sealing, plummer blocks are available with a variety of special sealing options and end covers.
Machine drawing pdf notes md notes pdf smartzworld. All the calculations should be on answer sheet supplied. Examine thoroughly, the external and internal features of the individual parts. They can be equipped with nsks tough spherical roller bearings, which have high load capacity, low temperature rise and highstrength cages. Ybearing plummer block units ybearing plummer block units with a pressed steel housing ybearing plummer block units fig. Skf pillow plummer block ball bearing units consist of an insert bearing mounted in a housing, which can be bolted to a support surface. This type of bearing consists of i a cast iron pedestal, ii gun metal, or brass bush split into two halves called brasses, and iii a cast iron cap and two mild steel bolts. Internal choices has been given in question of machine drawing. The text book answer would be, plummer block assembly can take up larger loads increase bearing life be easily maintained however, we wont know their real benefit until we visit a continuous production plant which producesutilizes s.
Machine drawing key solution designdme key solution. Plummer block assembly pdf figure 2 views and dimensions of the casting. Pedestal bearings or plummer block mechanical engineering. Department of mechanical engineering mep201 machine drawing. Mechanical engineering design, mechanical design, 3d autocad, bike sketch, 3d sketch, sketches, solidworks tutorial, wood bike, isometric drawing. Make sure you get this free chapter of metal working tips. You can finish many easily drawn parts in every assembly in minutes. Metal lathe projects metal lathe tools metal working tools lathe parts mechanical engineering projects autodesk inventor machinist tools cad drawing mechanical design. Actually experienced carpenters make a few mistakes, especially when they are cutting a great deal of various parts. Notes 2 the x dimension indicates the offset of the bearing center from the center of the plummer block bearing box. Cast iron gray cast iron is the standard material for the 200300. A castiron pedestal or blocks with a sole, tow split gum metal or bushes, a castiron cap and tow squareheaded.
This book on machine drawing is written, following the principles of drawing, as recommended by bureau of indian standards bis, in their standards titled engineering drawing practice for schools and colleges. Snl 30 and snl 31 plummer block housings have more to offer skf plummer block housings of the sd design are currently being redesigned to take advantage of the progress embodied in the smaller snl housings. Plummer block center, and its value is 12 the width of the. Assembly and details machine drawing pdf technical. Search by part specification, ntn part number, competitor part number, or drill down in a specific product category to order parts or download cad illustrations.
This video make by vishwakarma engineering drawing classes, bhilai nagar. When one locating ring is used for fixedend, the offset x dimension of bearing center from the center of the plummer block housing is a half of the locating ring width. This will help in understanding the functional requirements of individual parts and their location. The tolerances of both types are given in the tables below.
Standard type for bearing with adapter assembly d1 25140mm. Take a closer look at the different features of skf pillow block housings, and see how they can help you maximize bearing service life in your application. Assembly and details machine drawing pdf technical drawing. Assemble the parts by using the tools edit and save if necessary. Details of plummer block are shown in following fgure 1. To watch this video in english, pay rs 10 inr account no. When a long shaft requires to support at intermediate point a pedestal bearing or more plummer block is put to use. Sealing options nsk offers a range of sealing options including oil. Chapters on assembly drawings and part drawings are planned with a large number of exercises. Kml products are widely used in automobile,motorcycle,appliances,agricultural machinery,medicine,food and beverage processing,mining,energy,engineering,industries etc.
Snl 30 and snl31 plummer block housings solve the housing. Sn528 sn500 seriesplummer blockplummer blockkml bearings. Split plummer block design allows for easy mounting and dismounting of preassembled shafts. Plummer blocks and accessories snn series and sd series 7 highperformance snn series plummer blocks are highly rigid and easy to handle. See all design to learn to design and assemble the parts in diff ways and methods. Timken snt split plummer block housings are produced with highquality cast iron or ductile iron. The bolt holes in the block base are made longer with semicircular ends for adjusting the position of the bearing. Understand the purpose, principle of operation and field of application of the given machine. Plummer block unit designed for greater mechanical strength, and manufactured under strict quality control program. Cim oct2016, april 2016,cim oct2015, april 2015, april 2014, oct2014 question papers.
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