Design and Provide Engineering Drawings Of a Bearing Housing

Solidworks

Design and provide ENGINEERING DRAWINGS of a bearing housing. Dimensions of the bearing housing will depend on your student number. The Bearing housing assembly is cornposed by 4 components, plus bolts: 

1. Base of the pedestal 2. Top of the pedestal 3. Bearing (plain bearing for rapidly rotating shafts) 4. Locking Pin (interference fitting with bearing, loose fitting with pedestal) 5. Two Bolts (M12, thread length 35 mm) 
Drawings are provided for the cornponents. The student will follow the provided drawings to redesign the components with specific dimensions. 

The student is free to design suitable bolts. 

The student must ensure that each component is FULLY DIMENSIONED and annotated 
Assuming the last 3 digits of your student number are ABC (example: if a student number is 1234567, A=5, B=6, C=7). Remember: you need to ABS your student number 

Dimensions: 

Half length of Pedestal base = 104+A = ............................MM

Height of Pedestal base = 60 + B = ..........................MM

Diameter of hole in bearing = 32- C = ...................... MM 

See components drawings for details. 

Asnwer:

Modern bearings are highly engineered components that are the end result of extensive research into materials and bearing geometries, but their ultimate performance depends very much on how they are supported in duty – in other words, how they are housed. In this article, David Oliver, Channel and Platform Development Manager for Bearings at SKF describes the different types of bearing housings and their applications, as well as important design criteria such as seal selection and lubrication.

 

A particularly illustrative example of good housing design and construction can be found at Aggregate Industries’ Torr Works quarry site near Shepton Mallet in Somerset. Aggregate Industries uses Pennsylvania rock crushers at this site to break up around six million tonnes of limestone every year. Each crusher incorporates a series of hammers mounted along a central rotor shaft to reduce the limestone to the required size – a process that is particularly demanding on shaft bearings, seals and drive mechanisms due to the amount of dust generated.

The previous shaft bearing housings were unable to cope, with dust penetrating the seals and contaminating the bearing lubricant. The problem was exacerbated by the poor quality of the existing bearing housing castings, which proved porous, allowing oil to leak from them. The only solution was a complete refurbishment of the bearing housings and their associated parts.

Working with its distributor and specialised engineers, SKF set about the task of providing a custom-engineered solution that would enable the replacement bearing housings and shaft assembly to be manufactured off-site to minimise downtime at the quarry.