How to Select Plain Bearings and Sleeve Bearings   Plain bearings. Journal bearings Image Credit: GMT | Direct Industry | Berg Plain bearings and sleeve bearings (also referred to as bushings or journal bearings) are used to constrain, guide or reduce friction in rotary or linear applications. They function via a sliding action instead of the rolling action used by ball, roller, and needle bearings. Plain bearings and sleeve bearings are made from a variety of materials and are...
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Q & A on Plain Bearings and Sleeve Bearings

We asked our users for their input on Plain Bearings and Sleeve Bearings. Here are the results of 55 users familiar with Plain Bearings and Sleeve Bearings.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing plain and sleeve bearing design?
8 answers
Answers:
Composite materials - oil filled nylons, graphite/bronze filled teflons, sintered bronze, better low friction/low wear materials and better surface technologies.
~Neil D, Technical Support, Dandenong South, Australia
Lined bearings (with polyurethane), High temperature applications
~R Ramasamy Ramanathan, Facilities Manager, Chennai, India
Precision in design and quality.
~Other, Griffith, Australia
Ceramic, 260 brass Art world
~Michael Dickey, The Arts stardustgrafik.com, Springfield, MO
Coatings, composite materials
~George S, Technical Support, Prague, Czech Republic
Material spec's
~Engineering, Consulting, Singapore, Singapore
Use of ptfa
~David C, Marketing/Sales, Gateshead, Tyne & wear UK
Motion
~Vladimir M., Engineer, Kosice, Slovakia

Q:
From your perspective, which companies are creating the most innovative plain and sleeve bearings?
8 answers
Answers:
Have had some contact with Dixon in the past but generally our own work with specialized application.
~Neil D, Technical Support, Dandenong South, Australia
Michell Richards Renk
~David C, Marketing/Sales, Gateshead, Tyne & wear UK
Waukesha, Kingsbury
~George S, Technical Support, Prague, Czech Republic
RHP. INA. IKO etc
~R Ramasamy Ramanathan, Facilities Manager, Chennai, India
Deva - Germany
~Jaromir Cerny, Technical Support, Blansko, Czech Republic
Atlas
~Michael Dickey, The Arts stardustgrafik.com, Springfield, MO
IGUS
~Vladimir M., Engineer, Kosice, Slovakia
SKF
~Engineering, Consulting, Singapore, Singapore

Applications and UseTop

Q:
What are some of the applications you have used plain and sleeve bearings for?
18 answers
Answers:
Currently, as the carrier for a .500 OD shaft spur gear to be used in the drive mechanism for an adjustable front surface mirror. Am building a pair of them as small sculpture pieces from carbon fiber, brass, pewter, & the somewhat difficult to find 1/2" ID x 3/4 OD x 3" which will be brazed to a 3/16" plate. A laser beam to sound a very high pitched bell "singing bowls". This is part of a Gallery show in September.
~Michael Dickey, The Arts stardustgrafik.com, Springfield, MO
As replacement for bush bearings, used in a restricted area where regular PB bushes could not be used; used this as it was readily available off the shelf rather than manufactured bushes.
~R Ramasamy Ramanathan, Facilities Manager, Chennai, India
Hinge applications, swivels, low friction/low profile apps, spigot bearing, trolley wheels - particularly plastics, high temperature/low impact in carbon composites.
~Neil D, Technical Support, Dandenong South, Australia
1. Plate bending and rolling machines. 2. Upto 650 ton capacity Mechanical presses 3. Guillotine shearing machines. 4. Overhead conveyors for Paint shops.
~Maintenance/Facilities Management, Aurangabad, India
elect -motors-generators-turbine mine equipment-babbit repair
~LOU MUELLER, General Management, ST.LOUIS, MO
In horizontal and vertical pump applications.
~Engineering, Consulting, DENVER, CO
Vertical pumps, horizontal pumps and motors
~David C, Marketing/Sales, Gateshead, Tyne & wear UK
High speed single helical gear increaser
~Engineering, Consulting, Changwon, Korea (South)
Compressors, turbines, turbochargers
~George S, Technical Support, Prague, Czech Republic
Water turbine, guide vanes fitting
~Jaromir Cerny, Technical Support, Blansko, Czech Republic
Air compressors, big end bushes
~Engineering, Other, Hyderabad, Pakistan
Pump shafts, propellor shafts
~Engineering, Consulting, Singapore, Singapore
Test rigs for bearings
~Engineering, Design, Brasov, Romania
Gas and Steam Turbines.
~Other, Buenos Aires, Argentina
Model engineering
~Other, Griffith, Australia
Don't remember
~Engineering, Process/Production, Graested, Denmark
Automotive
~Technical Support/Services, Milano, Italy
Machinery
~Vladimir M., Engineer, Kosice, Slovakia

Q:
Please share with us any “non-standard” applications that plain and sleeve bearings have been used for.
4 answers
Answers:
Again, for the small market that we have, each application that we try to improve efficiency or service life e.g. Kiln car applications for high temp/low load/low speed application, Acetal trolley wheel applications for wet areas etc.
~Neil D, Technical Support, Dandenong South, Australia
All applications without oil as lubricating medium, i.e. bearings lubricated e.g. by water, freon, liquid hydrogen, or gasses.
~George S, Technical Support, Prague, Czech Republic
Model engineering applications
~Other, Griffith, Australia
Heavy loads
~David C, Marketing/Sales, Gateshead, Tyne & wear UK

Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of plain and sleeve bearings?
6 answers
Answers:
Have seen standard natural nylon used in a wet application. The water absorption caused swelling of the material resulting in an embarrassing seizure. We were called in to fix it.
~Neil D, Technical Support, Dandenong South, Australia
Many cases of rotor instability due to incorrect selection of bearing - machines could not be operated due to extreme vibrations.
~George S, Technical Support, Prague, Czech Republic
Design of clearance-lubrication
~LOU MUELLER, General Management, ST.LOUIS, MO
Alignment when used in multiples.
~R Ramasamy Ramanathan, Facilities Manager, Chennai, India
No knowledge of
~Michael Dickey, The Arts stardustgrafik.com, Springfield, MO
Yes, several
~Jaromir Cerny, Technical Support, Blansko, Czech Republic

FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
4 answers
Answers:
.18" ID, 1/4" ID, 3/8" ID, 1/2" ID 260 brass or bronze that is leaning towards brass. In longer lengths. 2" - 3" Super brazing characteristics with high silver brass colored rod
~Michael Dickey, The Arts stardustgrafik.com, Springfield, MO
Bearing which could be tuned according to operating conditions - possibility to change clearance, stiffness and damping during operation.
~George S, Technical Support, Prague, Czech Republic
Nothing specific as each application has its challenges, perhaps a universal material to cover all applications??
~Neil D, Technical Support, Dandenong South, Australia
Locating feasibility
~R Ramasamy Ramanathan, Facilities Manager, Chennai, India

Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of plain and sleeve bearings?
3 answers
Answers:
For more demanding applications it is not sufficient to choose bearings on the basis of specific load and maximum sliding speed.
~George S, Technical Support, Prague, Czech Republic
See above - question 8
~Neil D, Technical Support, Dandenong South, Australia
No knowledge of
~Michael Dickey, The Arts stardustgrafik.com, Springfield, MO

Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using plain and sleeve bearings?
4 answers
Answers:
Ensure that all factors for the application be known and considered before manufacture or design concept.
~Neil D, Technical Support, Dandenong South, Australia
Check load capacity -radial and axial.
~David C, Marketing/Sales, Gateshead, Tyne & wear UK
Check stability of high-speed rotors.
~George S, Technical Support, Prague, Czech Republic
No knowledge of
~Michael Dickey, The Arts stardustgrafik.com, Springfield, MO


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