RKS.161.14.0744 Slewing Bearings

RKS.161.14.0744 Slewing Bearing | Crossed Roller Series with External Gear for Heavy-Duty Rotary Applications

Luoyang Heng Guan Bearing Technology Co., Ltd. proudly presents the RKS.161.14.0744 Slewing Bearings, a precision-engineered single row crossed cylindrical roller slewing bearing designed for demanding rotary applications. With over 30 years of bearing manufacturing expertise, our ISO9001-certified facility in Luoyang—China's bearing industry hub—delivers this 161 series crossed roller slewing bearing external gear model featuring a 744 mm mean raceway diameter, 674×838.8×56 mm envelope dimensions, and a robust 1070 kN static load capacity (C0). Weighing 59 kg and equipped with a module 6, 138-tooth external gear, this bearing serves as a direct replacement for SKF RKS.161.14.0744 and INA XSA14 0744N, meeting stringent international standards with RoHS compliance and precision grades up to P4.

Our advanced CNC vertical lathes, induction hardening systems, and gear shaping centers ensure every crossed roller slewing ring m6 z138 achieves HRC 55-62 raceway hardness and running accuracy within ±0.2 mm radially.

Technical Specifications

Understanding the precise dimensions and performance parameters is critical when selecting a replacement for your excavator turntable bearing crossed roller 0744 or welding positioner application. Below is the complete technical datasheet for this 674x838.8x56 slewing bearing:

Note: INA XSA140744N shows 838.1 mm OD in some catalogs—the 0.7 mm difference is within tolerance and fully interchangeable.

Design Excellence and Performance Features

The RKS 161 14 0744 crossed cylindrical roller slewing ring employs a single-row raceway where rollers are arranged at 90° to each other. This configuration provides exceptional rigidity and load distribution compared to four-point contact ball bearings. You'll notice superior moment load capacity and minimal axial play, making it ideal for applications requiring high positional accuracy.

Our engineers utilize 100Cr6 bearing steel for the 14 mm diameter rollers, through-hardened to ensure uniform strength. The raceways undergo precision induction hardening to HRC 55-62, delivering outstanding wear resistance while maintaining core toughness. This heat treatment process is computer-controlled for consistent quality across every aftermarket RKS.161.14.0744 China supplier batch.

The external gear features a normalized finish capable of withstanding 16 kN continuous tooth forces and 54 kN peaks over 3 million load cycles. With a module 6 and 138 teeth on an 828 mm pitch circle, you achieve smooth power transmission for your excavator swing bearing crossed roller 0744 or offshore crane slewing bearing external gear 0744 system.

Integral NBR seals protect against contamination in temperatures from −40°C to +110°C. Four strategically placed M10×1 grease fittings facilitate maintenance—we recommend NLGI 2 lithium EP grease for optimal performance in demanding environments.

Direct Cross-Reference and Equivalent Models

When sourcing an XSA14 0744N equivalent, dimensional compatibility is paramount. The table below clarifies interchangeable designations:

Geared variants — RKS.161.14.0744 (external gear, this model) and RKS.162.14.0744 (internal gear) — maintain identical mounting bolt patterns (36×M12 outer / 40×14 mm inner) and gear parameters. The RKS.160.14.0744 is the no-gear version of the same 0744 size. Whether you're searching for any of these variants or a Unic330 OEM equivalent, our engineering team can verify fitment using your existing assembly drawings.

For applications requiring higher dynamic load capacity, consider upgrading from four-point ball designs (RKS.061.20.0744) to this crossed roller configuration—you'll gain 40% more radial stiffness within the same envelope.

Versatile Application Solutions

Excavator and Construction Excavator

The excavator turntable bearing crossed roller 0744 serves as the rotary joint in mini excavators (3-8 ton class), skid steers, and backhoe loaders. Its compact 56 mm height fits tight swing circle envelopes while the 1070 kN static capacity handles boom and bucket loads during digging cycles.

Industrial Positioning Equipment

Welding positioner RKS.161.14.0744 Slewing Bearings applications benefit from ±0.2 mm radial runout accuracy. Robotic welding cells, pipe manipulators, and automated assembly stations rely on this precision for consistent weld bead placement and part indexing.

Offshore and Marine Systems

In offshore crane slewing bearing external gear 0744 installations, the NBR seals and EP grease resist saltwater corrosion. Deck cranes, ship-to-shore loaders, and subsea equipment rotary tables operate reliably in harsh marine environments with proper maintenance intervals.

Radar and Surveillance Systems

The radar antenna turntable bearing 0744 enables smooth azimuth rotation for tracking systems. Low starting torque and uniform velocity are critical for military, air traffic control, and meteorological radar platforms—this bearing's ≤1.5 m/s continuous speed rating accommodates scanning requirements.

Machine Tool Rotary Tables

Precision machine tool rotary table bearing XSA14 0744N implementations include CNC horizontal boring mills, vertical turning centers, and multi-axis machining centers. The P5/P4-grade option (available upon request) delivers even tighter runout tolerances for micron-level cutting operations.

Material Handling and Aerial Access

Material handling slewing ring 0744 configurations power rotating conveyors, stacker reclaimers, and scissor lift turrets. Aerial work platform turntable bearing models support the oscillation axis in boom lifts and cherry pickers, where operator safety depends on bearing integrity.

Manufacturing Capabilities and Custom Services

Heng Guan Bearing's 50+ member R&D team operates CNC vertical lathes up to 10,000 mm swing capacity. Our CNC quenching machines ensure uniform hardness distribution, while precision gear shapers cut the module 6 external teeth to DIN 3962 tolerances. Coordinate measuring machines (CMMs) verify every dimension before shipment.

We maintain stock of standard small crane slew bearing 0744 units for fast delivery. For specialized projects, our personalized non-standard customization service includes:

· Alternate gear configurations (internal teeth, helical profiles)

· Material upgrades (42CrMo4, 50Mn for extreme loads)

· Special seal compounds (Viton for high-temperature environments)

· Old product mapping when 3D drawings aren't available

Our ISO9001-certified quality system traces every component from raw material mill certificates through final inspection reports. You receive full documentation including dimensional reports, hardness test results, and material certifications with each order.

Certification

FAQ

Q: What is RKS.161.14.0744?

A: RKS.161.14.0744 is a single row crossed cylindrical roller slewing bearing with an external gear, manufactured to the SKF RKS.161 standard. It has a 744 mm mean raceway diameter, 674 mm bore, 838.8 mm outside diameter, and 56 mm height, weighing 59 kg.

Q: What are the dimensions of RKS.161.14.0744?

A: Bore 674 mm (26.54 in), outside diameter 838.8 mm (33.02 in), total height 56 mm, weight 59 kg (130.1 lb). Gear: pitch circle 828 mm, module 6, 138 teeth with 20° pressure angle.

Q: Is RKS.161.14.0744 equivalent to INA XSA14 0744N?

A: Yes. INA XSA14 0744N is dimensionally equivalent—the outside diameter differs by only 0.7 mm (838.8 vs 838.1 mm) with identical bore, height, and bolt pattern. Both are fully interchangeable in most applications.

Q: What is the load capacity of RKS.161.14.0744?

A: Dynamic axial load rating C = 228 kN, static axial load rating C0 = 1070 kN. Permissible tooth forces are 16 kN normal and 54 kN maximum for the normalized gear over 3,000,000 cycles.

Q: Is RKS.161.14.0744 suitable for excavator swing applications?

A: Yes. The 161 series is widely used on excavator swing platforms, welding positioners, offshore equipment, and radar mounts. For the same mounting envelope, this crossed roller version provides higher stiffness than four-point contact ball alternatives like RKS.061.20.0744.

Q: What is the lead time and MOQ for RKS.161.14.0744?

A: Standard units ship within 3-5 business days from our warehouse inventory. Customized versions require 15-25 days depending on specifications. Our minimum order quantity is 1 piece—we support both prototype projects and bulk OEM partnerships.

Packaging and Global Logistics

Each 161.14.0744 bearing is individually wrapped in VCI anti-corrosion paper, secured with plywood crates, and strapped for ocean freight. We provide RKS.161.14.0744 datasheet PDF and CAD drawings in DWG/STEP formats upon request (3D models for standard configurations available free of charge).

Our products have reached customers across 50+ countries including Germany, the United States, Australia, and the Middle East. We coordinate shipping via DHL, FedEx, or sea freight depending on your urgency and budget.

Contact Us

Ready to source your RKS.161.14.0744 Slewing Bearings China manufacturer solution? Whether you need a single replacement unit, technical consultation on bearing selection, or a long-term OEM supply agreement, our engineering team is here to support you. Contact Us at mia@hgb-bearing.com for pricing, RKS.161.14.0744 in stock availability, and application-specific recommendations.