RKS.162.20.1904 Slewing Bearings

RKS.162.20.1904 Heavy-Duty Crossed Roller Slewing Bearing – Internal Gear Type for Industrial Rotation

Luoyang Heng Guan Bearing Technology Co., Ltd. brings you the RKS.162.20.1904 Slewing Bearings, a precision-engineered crossed cylindrical roller solution designed for demanding industrial applications. With over 30 years of expertise in slewing bearing manufacturing, our ISO9001-certified facility delivers this 162 series bearing featuring a 1,904 mm mean raceway diameter, 2,012 mm outside diameter, and impressive 3,950 kN static axial load capacity.

Weighing 305 kg and measuring 1,729×2,012×68 mm, this internal gear bearing incorporates 20 mm crossed rollers, 42CrMo4 ring material with HRC 55-62 induction-hardened raceways, and a module 14/124-tooth internal gear. Our precision manufacturing covers P0 to P4 grades across the 50-10,000 mm diameter range, serving clients in over 50 countries including Germany, the United States, and Australia.

Technical Specifications of 162.20.1904 Crossed Roller Bearing

Understanding your equipment requirements starts with precise dimensional data. Below you'll find complete specifications for the RKS 162 20 1904 slewing ring:

Cross-Reference and Interchange Compatibility

Finding the right RKS.162.20.1904 replacement or equivalent part is crucial for your maintenance schedule. This bearing is a direct drop-in substitute for multiple numbering systems:

Whether you're sourcing an aftermarket 1904 slewing bearing 1,729×2,012×68 or seeking ZR1.20.1904.400-1SPPN equivalent alternatives, our engineering team ensures dimensional and performance compatibility. All cross-references maintain the crossed roller internal gear slewing ring m14 z124 configuration.

Key Performance Advantages of Large Diameter Crossed Roller Design

The medium size crossed roller slewing bearing with an internal gear delivers superior performance through proven engineering principles. You gain exceptional rotational precision with radial runout limited to 0.45 mm and axial runout under 0.6 mm—critical for applications requiring accurate positioning.

Our RKS.162 20mm crossed cylindrical roller slewing bearing uses 100Cr6 through-hardened rollers arranged in a crossed pattern. This configuration provides equal load capacity in both directions while maintaining compact height. The 20 mm roller diameter balances contact stress distribution with structural rigidity.

Material selection follows strict European standards. The 42CrMo4 ring material is mandatory for bearings exceeding 1,094 mm mean diameter, delivering the core toughness needed to absorb shock loads while maintaining dimensional stability. Induction-hardened raceways achieve HRC 55-62 surface hardness, creating a wear-resistant layer that extends service life even under contaminated conditions.

Your operations benefit from permissible tooth forces of 69 kN continuous and 230 kN maximum over 3,000,000 cycles. The normalized gear withstands intermittent overloads without tooth root failure—a common pain point in port excavator and mining equipment. NBR seals maintain lubrication integrity from −40 to +110 °C, protecting against moisture and particulate ingress.

Industrial Applications of the 162 Series Internal Gear Slewing Bearing

The RKS.162.20.1904 Slewing Bearings with an internal gear 1904 configuration serve as the yaw drive foundation in 2-3 MW turbines. You'll find these bearings enabling smooth nacelle rotation while withstanding combined wind loads and gravitational moments. The internal gear meshes directly with your pinion drive, eliminating the need for external gearbox housings.

Stacker reclaimer slewing bearing 162 series installations benefit from the compact 68 mm height, allowing integration into existing boom structures without major redesign. Port operators choose this port excavator slewing ring internal gear large diameter solution for ship unloaders and gantry cranes, where the 3,950 kN static capacity handles off-center container grabs.

Construction teams specify this large crane slewing bearing 2012mm OD for mobile cranes in the 200-300 ton class. The crossed roller design reduces slewing torque by 30-40% compared to ball bearings, lowering hydraulic system demands and fuel consumption.

Underground contractors rely on the tunnel boring machine slewing bearing crossed roller variant for TBM cutterhead articulation. The high radial stiffness maintains cutting face parallelism as geological conditions change. Mining operations deploy the bucket wheel excavator slewing bearing version in BWE rotary joints, where continuous 24/7 operation demands maximum durability.

Heavy manufacturing uses this bearing as a heavy duty rotary table bearing 1904 in quenching machines, forging manipulators, and automated welding positioners. The scraper / quenching machine slewing bearing application particularly values the temperature-resistant NBR seals during thermal cycling.

Manufacturing Excellence and Quality Assurance

Our Luoyang facility leverages CNC vertical lathes, CNC quenching machines, and CNC gear shapers to achieve consistent quality across every large diameter crossed roller slewing ring 2012mm OD we produce. Coordinate measuring machines verify dimensional tolerances, while vibration testers qualify rotational smoothness before shipment.

You receive full material traceability documentation per EN 10204 3.1, confirming heat treatment records and chemical composition analysis. Every bearing undergoes raceway hardness depth verification—typically 3-6 mm penetration—ensuring subsurface support for the hardened layer. This prevents premature spalling, the number one field failure mode.

Our precision capabilities span four accuracy grades. While this model typically ships to P0 standard, we offer P6 and P5 upgrades when your application demands tighter running tolerances. Gear quality follows ISO 1328 standards, with optional profile grinding for noise-sensitive installations.

FAQ

Q: What is RKS.162.20.1904?

A: RKS.162.20.1904 is a single row crossed cylindrical roller slewing bearing with an internal gear, manufactured to the SKF RKS.162 standard. It has a 1,904 mm mean raceway diameter, 1,729 mm bore, 2,012 mm outside diameter and 68 mm height, weighing 305 kg.

Q: What are the dimensions of RKS.162.20.1904?

A: Bore 1,729 mm (68.07 in), outside diameter 2,012 mm (79.21 in), total height 68 mm, weight 305 kg (672.4 lb). Gear: pitch circle 1,736 mm, module 14, 124 teeth.

Q: Is RKS.162.20.1904 interchangeable with ZR1.20.1904.400 or ZB1.25.1904.400?

A: Yes. ZR1.20.1904.400-1SPPN/2SPPN (crossed roller) and ZB1.25.1904.400-1SPPN (four-point ball) share identical 1,729×2,012×68 mm mounting dimensions, as does RKS.062.30.1904. QCB SIG 25 series also lists these as interchangeable.

Q: What is the load capacity of RKS.162.20.1904?

A: Dynamic axial load rating C = 644 kN, static axial load rating C0 = 3,950 kN. Permissible tooth forces 69 kN normal and 230 kN max for the normalized gear.

Q: What material is used for large RKS.162 series bearings?

A: For mean raceway diameters above 1,094 mm, rings are made of 42CrMo4 per EN 10083-3 with induction-hardened raceways HRC 55-62; rollers are 100Cr6 through-hardened.

Packaging and Delivery

Your bearing ships in custom wooden crates with moisture-barrier wrapping and anti-corrosion VCI paper. We maintain standard bearing inventory for fast delivery, with typical lead times of 3-4 weeks for customized configurations. Our logistics team coordinates freight forwarding to your facility worldwide.

Contact Us

Ready to specify the RKS.162.20.1904 Slewing Bearings for your next project? Our engineering team provides selection assistance, CAD models, and installation guidance. Contact Us at mia@hgb-bearing.com for pricing, technical datasheets, or to discuss your specific application requirements.