RKS.921150303001 Slewing Bearings

RKS.921150303001 Slewing Bearing - Customized Crossed Roller Solution with External Gear for Compact High-Precision Applications

Luoyang Heng Guan Bearing Technology Co.,Ltd. brings you the RKS.921150303001 Slewing Bearings, a customized single row crossed cylindrical roller turntable bearing with external gear. This model is the smallest in the SKF RKS customized crossed roller family. With a mean raceway diameter of 310 mm, bore of 233 mm (9.17 inches), outside diameter of 403.5 mm (15.89 inches), and total height of 55 mm, the bearing weighs just 24 kg (53 lb). It delivers impressive load capacity—245 kN dynamic and 697 kN static axial rating—while featuring module 4.5 / 88-tooth external gearing, the smallest module in the family. Your equipment benefits from high rigidity, low clearance, and smooth pinion engagement in a compact, lightweight package.

Leveraging over 30 years of bearing industry expertise from Luoyang, China's bearing hub, our ISO9001-certified facility and team of 50+ engineers specialize in slewing bearings from 50 to 10,000 mm diameter. We cover four precision grades: P0, P6, P5, and P4.

Technical Specifications of RKS.921150303001

The RKS 921150303001 delivers precise dimensional and performance data verified across multiple distributors, ensuring you have confidence in every specification.

Interchange references: SKF RKS.921150303001, LILY LRKS.921150303001, BDI #1423633, Applied #101176819, RS Components #73230657, Texas Bearing.

BDI EAN: 7316571651316

Why Choose Our RKS.921150303001 Crossed Roller Slewing Ring Bearing

Smallest Crossed Roller Model for Compact Design

The RKS.921150303001 customized crossed cylindrical roller stands out as the smallest customized crossed roller model in the entire RKS range. At 24 kg, it offers you a unique entry point when space and weight constraints are critical.

Your excavator benefits from a smaller envelope without sacrificing load capacity. The 90-degree crossed roller raceway handles combined axial, radial, and tilting moments with exceptional rigidity—ideal for precision applications where every millimeter counts.

Module 4.5 Gearing for Superior Performance

The cross roller slewing ring bearing with external gear features module 4.5 / 88 teeth—the smallest module available in this family. This specification delivers lower clearance and smoother pinion engagement than larger-module alternatives.

Your drive system experiences reduced vibration and noise during rotation. The compact gear envelope simplifies integration with smaller motors and reducers, making the RKS.921150303001 external gear configuration perfect for tight packaging requirements.

Verified Load Ratings from Multiple Sources

We provide you with two-source verified load ratings: dynamic (C) 245 kN and static (C0) 697 kN axial capacity. These figures have been cross-referenced against SKF catalogues and independent distributor specifications.

Your design calculations can proceed with confidence. The permissible tooth forces—17 kN normal and 35 kN maximum—are documented with load curves for both raceway (r1) and bolt (b1) paths, giving you complete transparency for safety factor analysis.

North American Distribution Network

The RKS.921150303001 replacement is established across major North American supply chains. BDI Canada lists this exact model as #1423633 at USD 7,503.26. Applied Industrial Technologies carries it as #101176819. RS Components stocks it as #73230657, and Texas Bearing also lists the reference.

You gain immediate access to local inventory and technical support. Yet by sourcing directly from our factory, you receive the identical SKF-compatible bearing—including the distinctive 23-hole inner bolt pattern—at a fraction of distributor pricing.

Kaydon Slewing Ring Replacement Compatibility

RS Components lists the RKS.921150303001 slewing bearing alongside Kaydon slewing rings, confirming its application in the Kaydon replacement aftermarket. If you operate existing Kaydon crossed roller equipment, this bearing serves as a dimensionally interchangeable alternative.

We verify specific compatibility for your installation within 24 hours. Your Kaydon replacement project benefits from factory-direct pricing while maintaining the precision and load capacity your equipment demands.

Verified Weight & Dimensions

The crossed roller turntable bearing 233x403.5x55 specification includes full documentation: unequally spaced inner bolt pattern drilling templates, gear profile shift data (k·m 0.752 mm), and factory-verified weight of 24 kg.

Your engineering team receives accurate CAD drawings and technical datasheets. We maintain full traceability from raw material through finished product, with coordinate measuring machines and vibration testers ensuring every dimension meets published tolerances.Application Areas for RKS.921150303001

Small Cranes and Mini Excavators

The single row crossed roller slewing bearing external gear suits small crane and mini excavator slewing mechanisms perfectly. The 24 kg crossed roller envelope provides sufficient capacity (C0 697 kN) for light-duty rotation without the weight penalty of larger rings.

Your compact equipment benefits from direct pinion drive through the external module-4.5 gear. The design eliminates the need for additional reduction stages, simplifying your slewing drive assembly and reducing maintenance points.

Robot Joints and CNC Rotary Tables

For robot joints and small CNC rotary tables, the RKS.921150303001 Slewing Bearings 403.5x233x55mm configuration delivers the repeatable positioning that precision automation demands. Crossed roller rigidity minimizes deflection under load, while low runout ensures accurate angular positioning cycle after cycle.

Your automation system achieves tighter tolerances with the smallest crossed roller package in the family. The small-module gearing matches compact servo and stepper motor drive trains, giving you smooth, clearance-free motion control.

Medical Devices and Inspection Equipment

Medical imaging systems and inspection turntables require smooth, vibration-free rotation in compact envelopes. The smallest crossed roller slewing bearing provides sealed construction with NBR or FKM rubber seals, protecting against contamination in clean-room and laboratory environments.

Your precision turntable maintains low runout across thousands of rotation cycles. At 24 kg, the bearing integrates easily into weight-sensitive medical device architectures while delivering the reliability healthcare applications demand.

Solar Trackers and Packaging Excavator

Solar tracker installations benefit from the lightweight RKS.921150303001 9.17 x 15.89 inch slewing bearing, which reduces actuator drive load and simplifies mounting structures. The sealed design withstands outdoor environmental exposure while maintaining smooth tracking motion.

Packaging excavator uses this compact turntable bearing to create rotary indexing tables and bottle-filling platforms. The small-module gear matches high-cycle automation requirements, with factory lubrication designed for continuous-duty operation.

Kaydon Crossed Roller Bearing Replacement Market

If you're seeking a Kaydon slewing ring replacement, the RKS.921150303001 offers dimensionally compatible performance at factory-direct pricing. We supply the identical bolt patterns, gear specifications, and load ratings required for retrofit installations.

Your existing Kaydon-equipped excavator gains a cost-effective service life extension. We provide installation guidance and can customize sealing or lubrication specifications to match your original Kaydon bearing configuration.

US Aftermarket and OEM Supply

With listings across BDI, Applied, RS Components, and Texas Bearing, the SKF customized crossed cylindrical roller slewing bearing external gear is a proven reference in North American industrial supply chains. Whether you need a single replacement unit or OEM quantities, we ship globally with comprehensive documentation.

Your purchasing team can compare our factory-direct quotation against BDI's USD 7,503 listing and similar distributor pricing. We support bulk shipments with consistent quality and can provide OEM/ODM customization for your specific application requirements.

Manufacturing Excellence at Heng Guan Bearing

Our advanced production equipment includes CNC vertical lathes, CNC quenching machines, CNC gear shapers, machining centers, grinding machines, and large gear hobbing machines. This integrated capability allows us to control every production step of the customized crossed roller slewing ring bearing.

You receive bearings manufactured from 50Mn or 42CrMo4 ring material with GCr15 cylindrical rollers. Induction hardening achieves 55-62 HRC raceway surface hardness, creating a fatigue-resistant layer while maintaining a ductile core for shock absorption.

Our ISO9001-certified quality system ensures strict testing with coordinate measuring machines, vibration testers, and life testing machines. Every bearing undergoes full traceability from raw material through final inspection, guaranteeing RoHS compliance and adherence to ISO and national standards (DIN, GB).

We export to over 50 countries, including South Africa, the United States, Germany, the United Kingdom, Italy, Turkey, Russia, Austria, Norway, Australia, Mexico, Malaysia, and throughout the Middle East. Your order benefits from this proven global supply chain and three decades of bearing engineering expertise.

Services and Support

Technical Consultation and Custom Design

Our team of 50+ engineers provides technical consultation for bearing selection, application analysis, and installation guidance. If you have special working condition requirements, we offer customized bearing solutions tailored to your load profiles and environmental factors.

We support old product mapping and personalized non-standard customization. You can provide physical samples for reverse engineering, even without 3D drawings, and we'll create compatible replacements with documented specifications.

Fast Delivery and Inventory

Standard RKS.921150303001 in stock units ship within 2-3 days. We maintain ample inventory of this reference to support rapid replacement needs and emergency breakdowns.

Your minimum order quantity is just 1 piece, making prototype development and single-unit replacements economically feasible. For bulk orders, we support container-load shipments with optimized packaging to minimize freight costs.

OEM/ODM Partnership

We welcome OEM and ODM partnerships across diverse industries. Whether you need private labeling, custom packaging, or application-specific modifications to the base 921150303001 design, our flexible manufacturing approach accommodates your requirements.

Your brand benefits from our precision manufacturing and quality assurance systems. We provide comprehensive documentation including CAD drawings, datasheets, and certificates of conformance to support your quality management processes.

FAQ

Q: What is RKS.921150303001?

A: RKS.921150303001 is a customized single row crossed cylindrical roller slewing bearing with external gear from the SKF RKS series. It is the smallest model in the customized RKS range, featuring a 310 mm mean raceway diameter, 233 mm bore, 403.5 mm outside diameter, 55 mm height, and 24 kg weight.

Q: What are the dimensions of RKS.921150303001?

A: The bore measures 233 mm (9.17 in), outside diameter 403.5 mm (15.89 in), height 55 mm (2.17 in), with a net weight of 24 kg (53 lb). The external gear has a 396 mm pitch circle, module 4.5, and 88 teeth. Bolt circles are 358 mm outer (24 × 13 mm through holes) and 259 mm inner (23 × 13 mm through holes, unequally spaced).

Q: What is the load capacity of RKS.921150303001?

A: Dynamic axial load rating is C = 245 kN, and static axial load rating is C0 = 697 kN, verified by SKF catalogues and independent sources. Permissible gear tooth forces are 17 kN normal and 35 kN maximum.

Q: Is RKS.921150303001 a Kaydon replacement?

A: Yes. RS Components lists this model as "SKF RKS.921150303001 Kaydon Slewing Ring," indicating cross-application compatibility with Kaydon slewing ring systems. We confirm dimensional interchangeability for your specific application within 24 hours of inquiry.

Q: Is RKS.921150303001 available in stock?

A: Stock models ship in 2-3 days. The minimum order quantity is 1 piece. Contact Us for current availability, CAD drawings, technical datasheets, and factory-direct pricing.

Q: Can I get a CAD drawing and datasheet for RKS.921150303001?

A: Yes. We provide complete CAD drawings in multiple formats (DWG, STEP, IGES) along with PDF technical datasheets including dimensional tolerances, load curves, gear data, and bolt pattern drilling templates. These documents support your design integration and quality verification processes.

Q: What is the price difference compared to BDI?

A: BDI Canada lists this exact model (#1423633) at USD 7,503.26. Our factory-direct pricing offers significant savings on identical SKF-compatible bearings, including the distinctive 23-hole inner bolt pattern and module 4.5 gearing. Request a quotation to compare.

Contact Us

Ready to optimize your compact slewing application with the RKS.921150303001 Slewing Bearings? Our engineering team is here to support your project with technical consultation, custom solutions, and fast delivery.

Contact us today at mia@hgb-bearing.com for pricing, CAD drawings, or application assistance. Let Luoyang Heng Guan Bearing Technology become your trusted partner in precision slewing bearing solutions.