Our organization, "R. R. International", is a manufacturer, supplier and exporter of a distinguished line of "Automotive & Industrial Bearings". We have established our extensive work unit in Rajkot (Gujarat) where we design, manufacture, quality test our bearings and our packing (Export House) in Mumbai, Maharashtra, from where we pack and dispatch the orders for the clients. Our superior quality and precision engineered parts and components are availed by the leading names in engineering and automobile industries.
We have a robust infrastructure that comprises ultramodern R&D unit and a quality control unit. A capacious warehouse also supports us in safe storage of the products. Our wide distribution channel assists us in timely delivering the orders in all parts of Middle-East, South America, Africa, Europe, Australia and the Indian Subcontinent. The orders are delivered via cargo and air. We offer easy payment modes like L/C on deferred payment methods (30 days,60 days,90 days) etc.
We have grown leaps and bounds under the able guidance of our mentor, "Mr. Harjeev Singh Anand". He has always motivated us to perform up to our true potential and achieve success parallel to our caliber.
We are a reckoned manufacturer, supplier and exporter of a variegated line of Bearings For Mercedes Benz, Scania, Volvo, Man, Daf, Renault, Hino, UD (United Diesel), Mitsibushi, Nissan, Ford, BMC Trucks as well as for RVI, ROR, BPW, Kassbohrer, Mack, Fuwa, Shmitz Cargo Bull, SAF, Arwin Meritor, Gigant (SAE), SMB, Standard Forge, Western Star, Freightliner, Rockwell, Tandem, Kenworth, Peterbilt, Fruehauf, Montenegro, York, Dana, Spicer, Eaton, Navistar Trailers and Trucks.
These bearings are manufactured from superior grade SAE 52100 grade steel with premium grade rollers and cages as per SKF and FAG thickness and grade
The bearings undergo CNC turning, CNC automatic grinding as well as Super Finishing. Our range includes Taper Roller Bearings, Cylindrical Roller Bearings, Clutch Release Bearings, Needle Roller Bearings, Needle Cages, Needle Rollers, Kinpin & Thrust Bearings, Steering Bearings, Water Pump Bearings Spherical Bearings and Non-Standard & Standard Ball Bearings.
These are available in varying sizes, designs, shapes and other specifications. We offer these products in customized specifications as well for clients across engineering and automobile sector.
Selection of Raw Materials
Raw material, SAE 52100 Steel conforming to international standards is used for manufacturing MNR GOLD bearings and same steel is used for all the bearing components like races, cages and rolling elements. All the cages are composed of CRC material and brass as per international standard specification.
Forging & Annealing
Forging is a metal shaping treatment that works through the forces of heat and impact to give the desired shape to the metal. The process is performed on SAE 52100 Steel so as to deliver a perfect shape. Annealing is an association of heating and cooling treatment performed on the bearings so as to enhance the ductility of the bearings. This makes the bearings more workable with regards to moulding them to any desired shape.
Forged material is further used to do turning with the help of automatic CNC Machines. These machines are known worldwide for reliable operation and increased productivity when it comes to manufacturing complicated components with highest degree of accuracy and perfection.
All the components of the bearing including Inner & Outer races, rings and the rollers are heat treated to provide resistance to wear and tear. Both the inner and outer races are hardened to 60 ± 2 HRC as per international standard. The hardness of the races as well as the rolling elements is further checked and tested using a hardness tester.
The grinding process undergoes four stages namely:
After the grinding process, we reduce Roughness Average (Ra) value on Track with the help of Honing & Lapping machine & maintain RA value which provides super finished bearing components.
Cleaning & Assembly
After the super finishing process, all the races and rolling elements are washed and cleaned ultrasonically to clear off all the remaining dirt and dust. Thereafter, based on the specific customer requirements, the components are assembled with precision and excellence using Fully automatic assembly line.
After assembling the components, bearings are neatly and securely packed under hygienic conditions. The manufactured bearings are first oiled to ensure protection against varied atmospheric effects and then wrapped securely in plastic bags. Further to that, these are packed in individual boxes which are collectively packed in a master box for transportation.
HARDNESS TESTERS (H.R.C.)
MASTER RING GAGUES (40mm TO 190mm)
TALLY SEARCH (R.A. VALUE)
TALLY ROUND (ROUNDNESS)
MITUTOYO MAKE CONTOUR MEASURING SYSTEM
MITUTOYO MAKE SURFACE ROUDH MEASURING SYSTEM
MITUTOYO MAKE ROUNDNESS/CYLINDRICITY MEASURING SYSTEM