Special Bearings are bearings that are provided for special projects
Special Bearings are bearings that are provided for special projects. Special Bearings are intended for purposes that require bearings of different sizes to bearings in general, usually applied to large sized machines, for example tunnel boring machines, bucket-wheel excavators and dump trucks in the mining industry.
The bearings that we provide in this special bearing are from well-known brands of course with very good quality, namely the RKB Bearing brand .
RKB
In short, RKB is a Swiss company with more than 80 years of experience in bearing manufacture and design, especially in medium and large size bearings , as well as bearing technology . RKB has one of the largest holdings in Europe worth more than 80 million euros. By having customers from various industries such as the cement, mining and marble industries. We provide large size bearings and bearing technology that can be used in special projects. RKB has bearing products that can support areas such as:
Civil Engineering Applications
Marine and Offshore
Metals
Mines and Minerals
Power Transmission
Heavy Automotive
etc
CIVIL ENGINEERING APPLICATIONS
DISC CUTTER FOR TUNNEL BORING MACHINE
MAIN RKB BEARINGS: T3 SEGMENT - SINGLE ROW TAPERED ROLLER BEARINGS
• Thin section large size single row tapered roller bearings (design and execution for heavy load applications) • Up to 458 mm inner diameter • B 10 life > 100000 h as per mining specifications
PULP AND PAPER, CONVERTING AND PRINTING
MAIN RKB BEARINGS: T3 SEGMENT - SPHERICAL ROLLER BEARINGS
• Premium class bearings for extended service life • Spherical, tapered and cylindrical roller bearings
And many more..
MARINE AND OFFSHORE
MAIN SHAFT OF NAVY FRIGATE
MAIN RKB BEARINGS: T3 SEGMENT - SPHERICAL ROLLER BEARINGS
• Large size application-optimized spherical roller bearings • Up to 340 mm inner diameter • Safety factor (S 0 ) according to military offshore equipment guidelines
JACKING SYSTEM IN OFFSHORE PLATFORM
MAIN RKB BEARINGS: T3 SEGMENT - SPHERICAL ROLLER BEARINGS
• Spherical roller bearings for rack and pinion jacking system of NG and CJ series drilling rigs working in harsh environmental conditions • Up to 240 mm inner diameter • Design and execution to withstand heavy loads and variable speeds (0.3-1.2 m/ min) • Safety factor (S 0 ) as per marine specifications • Design life (L 10 ) ≈ 10 years service
And many more..
METALS
GUIDE ROLLS OF CONTINUOUS SLAB CASTING MACHINE
MAIN RKB BEARINGS: T3 SEGMENT - SINGLE ROW TAPERED ROLLER BEARINGS
• Low cross section spherical roller bearings for guide rolls of continuous slab casting in hot strip mills • Up to 170 mm outer diameter • Out of standard window-type cage • Stabilizing Treatment for operating temperatures up to 300 °C (S3)
WORK ROLLS OF HOT ROLLING MILL STAND
MAIN RKB BEARINGS: T3 SEGMENT - SEALED FOUR-ROW TAPERED ROLLER BEARINGS
• Long life series bearings • Phosphate Treatment for rings, rollers and spacers (PT4) • Increase of rolling efficiency by stable operation • Easier handling of seals
And many more..
MINES AND MINERALS
BUCKET WHEEL EXCAVATOR MAIN SHAFT
MAIN BEARINGS: T3 SEGMENT - SPLIT DOUBLE ROW CYLINDRICAL ROLLER BEARINGS
• Time saving in hard-to-reach positions • Manufacturing technology and expertise for maximum reliability • Engineered for modified ISO life (L 10mh ) > 20000 h • Up to 780 mm outer diameter • Safety factor (S 0 ) > 3
CONE TYPE CRUSHER
MAIN RKB BEARINGS: T3 SEGMENT - TECHNOLOGICAL BEARINGS
• Technological double row cylindrical roller and thrust roller bearings • Superior load capacities • Optimized design of inner executions for improved lubrication and resistance to high vibrations/shocks
And many more..
POWER TRANSMISSION
WIND MULTIPLICATOR
MAIN RKB BEARINGS: T3 SEGMENT - TECHNOLOGICAL BEARINGS
• Technological bearings for speed multiplicators used in medium and high power wind turbines (over 850 kW) • Maximum reliability required due to the application conditions • Bearing optimization through RKB R&D activity
CONCRETE MIXER GEARBOX
MAIN RKB BEARINGS: T3 SEGMENT - SPHERICAL ROLLER BEARINGS WOR DESIGN
• Bearing internal geometry optimized through Finite Element Analysis to sustain additional loads and friction at low operating speeds (max 20 rpm) • Increased permissible misalignment up to ±6° (Wider Outer Ring) in transit mixer concrete gearbox • Premium steel class for higher reliability and extended service life • Special heat treatments to reduce incidence of cracking • Safety factor (S 0 ) > 2.5 • Design life (L 10m ) > 2.6 million revolutions ≈ 10 years service
And many more..
HEAVY AUTOMOTIVES
FRONT AND REAR AXLES OF DUMP TRUCK
MAIN RKB BEARINGS: T3 SEGMENT - SINGLE ROW TAPERED ROLLER BEARINGS
• Single row tapered roller bearings for dumper transmission (wheel hubs of front and rear axles) • Up to 300 mm inner diameter and 422 mm outer diameter • E-Type design and execution for high load capacity, higher accuracy and shock resistance • Life rating (L 10 ) > 100000 km of the vehicle
GEARBOX FOR CITY BUS ON TIRES
MAIN RKB BEARINGS: T3 SEGMENT - TECHNOLOGICAL BEARINGS
• Application optimized tapered and cylindrical roller bearings • Up to 280 mm inner diameter • Required operating life (L 10m ) > 1.8 million kilometers of the vehicle
