Post on 02-Nov-2015
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DESIGNED FOR HYDRAULIC, PUMP & MARINE APPLICATIONS
Royals FRPR - COMPOSITE BEARINGS
Seals for Hydraulics & Pneumatics -- Your Partner for Sealing Solutions
Excellent mechanical strength. High load capacity and shock load resistant. Low maintenance, allows for reduction or elimination of wet lubrication. Excellent electrical insulation and good chemical resistance. Excellent dimensional stability in water, corrosive fluids, and chemical solutions. Long life, wear resistant. Non-abrasive to mating surfaces (no abrasive fillers/ calcium carbonate.) Low coefficient of friction Operates in fresh or salt water without lubrication Damping of vibration Ease of machining Fitting by pressing, freezing, adhesives and mechanical methods
APPLICATIONS
Railways Off-road vehicles Process equipment Injection moulding machines Pumps and Valves Lifting and handling equipment Hydropower Formula one racing cars Roll coverings Marine Earth Moving Equipment
Hydraulic Cylinder Wear Rings Pump Bearings Injection Molding Machines Rudder Bearings Stern Tube Bearings Marine Stern Roller Bearing
ROYAL manufactures a range of thermoset composite bearings, used widely in Engineering and Marine applications. Incorporating advanced polymer technologies, these composites are made from technical fabrics impregnated with thermosetting resins and evenly distributed solid lubricants and additives to satisfy various engineering applications.
ADVANTAGES OF USING ROYALS FRPR
Seals for Hydraulics & Pneumatics -- Your Partner for Sealing Solutions
COMPOSITE BEARING - FRPR
Property Unit HB-FRPR MG-FRPR
Tensile Strength Mpa 70 75
Compressive strength, static (perpendicular to fabric) Mpa 360 360
Compressive strength, static (parallel to fabric) Mpa 91 91
Hardness Rockwell M 95 95
Density gm/cc 1.25 1.24
Working Temperature Range Maximum C 120 120
Minimum C -40 -40
Coefficient of linear expansion 10-5/ (+20C to +100C)
Perpendicular to the laminate
9 - 10 9-10
Parallel to the laminate 5 - 6 5 - 6
Material swell in water Immersed in 20C for 24 hrs
Increase in % wall
thickness < 0.1% < 0.1%
Max. Sliding Speed m/s 1.0 1.0
Friction coefficient oil lubricated 0.04-0.09 0.05-0.09
Colour Blue Grey
FRPR materials are readily machinable by
conventional machine shop techniques. In general,
methods used for machining softer metals like brass
or aluminium applies for FRPR materials as well. It is
preferable to use tungsten carbide turning tools with
cutting speeds of 5.5 metres (19 feet) per second.
FRPR materials must be machined dry without the use
of coolant.
MACHINING FRPR
Seals for Hydraulics & Pneumatics -- Your Partner for Sealing Solutions
Seals for Hydraulics & Pneumatics -- Your Partner for Sealing Solutions
Apart from Composite Bearing, Royal specialises in Wear Rings for Hydraulic &
Pneumatic applications made of different raw materials.
The main function of Guide ring is to guide the rod or the piston of a hydraulic cylinder
and absorb the forces that act perpendicular to the direction of movement. Guide rings
also help in preventing any metallic contact between any sliding parts, minimizes the
eccentricity, and thus overall increases the seals life.
Materials
In view of the different specific demands made on piston and rod guides, various Guide
ring materials are available:
FRPR Fabric Reinforced Polyester Resin composite material is used in heavy duty
applications where high radial forces are generated.(q=120 Mpa)
PAGF Glass filled Polyamide material is used in medium to heavy duty applications.
Friction-reducing fillers can be added for special applications. (q=40 Mpa)
Filled PTFE (PB40/PB60)- Filled PTFE material guide rings are used in low to medium
duty applications where limited radial forces are generated. Low co-efficient of friction
allows the wear ring to be used in Pneumatic applications as well where high speeds are
required.(q=20 Mpa)
The total radial load on the piston, the surface speed, type of hydraulic fluid used,
temperature of the system etc. is to be kept in mind while selecting the appropriate
Guide ring. Please do not hesitate to contact our Technical Department for further
information on specific applications and special technical questions.
Seals for Hydraulics & Pneumatics -- Your Partner for Sealing Solutions
Thank You.
Royal Composites Pvt. Ltd. ( Unit l ) Howrah Polypark, Near Sankrail Toll Plaza, Unit - PPH4, Vill & Post - Kandua. P.S. - Sankrail, Howrah Dist. 711302, West Bengal, India Phone: +919674737342/36
Email: info@royalcomposites.co.in , info@royalseals.co.in Website: http://www.royalcomposites.co.in or http://royalseals.co.in/
Seals for Hydraulics & Pneumatics -- Your Partner for Sealing Solutions