RKS.22.0741 Slewing Bearings

RKS.22.0741 Slewing Bearings — Internal Gear Four Point Contact Ball Bearing for Center-Drive Precision Applications

The RKS.22.0741 Slewing Bearings is a light-series single-row four-point contact ball slewing ring with internal gear, built to SKF RKS.22 standards. With an 848 mm OD, 649 mm bore, 56 mm height, and just 55 kg, it delivers a static load rating of 524 kN — 19% higher than the RKS.22.0641. At Luoyang Heng Guan Bearing Technology Co., Ltd., we back this with 30+ years of precision manufacturing experience, ISO 9001 certification, and direct factory pricing with MOQ of just 1 piece.

Full Technical Specifications

Here are the complete dimensions and parameters you need for engineering evaluation and drop-in replacement planning.

Cross-Reference & Interchange Guide

Need a VLI200744 equivalent or planning an RKS.22.0741 Slewing Bearings replacement? Here's your verified interchange table.

Important note: The medium-series 062.20.0744 variants share the size range but use a different locating-diameter system. Always verify before installation.

Same-Size Gear Type Comparison

Key Product Advantages

Here's why engineers and procurement managers choose our 22.0741 turntable bearing over off-the-shelf alternatives.

19% Higher Static Capacity. With C0 = 524 kN, this bearing handles heavier tilting moments than the RKS.22.0641. That matters in excavator swing and crane center-drive applications.

Induction-Hardened Raceways. The HRC 55–62 raceway hardness is achieved through precision induction hardening. The core stays ductile for shock absorption while the surface resists spalling.

Reliable Sealing & Lubrication. NBR integral seals operate from −40 to +110 °C. The 4 × AM8×1 grease nipples (DIN 71412) on the outer ring match SKF catalogue specification — not the conical S8×1 listed by some European distributors.

Light Series, Big Performance. At only 55 kg, this flanged slewing bearing with inner gear gives you compact dimensions without sacrificing load capacity.

Application Scenarios

This internal gear four-point contact ball slew ring is engineered for demanding low-speed, high-load rotation tasks.

Rotary Working Tables — The flange-on-outer-ring design and center-drive layout make it ideal for precision CNC rotary tables and indexing platforms.

Excavators & Construction Excavator — The 848×649×56 mm envelope fits standard swing-circle housings. Its shock-resistant four-point contact design handles sudden tilting moments during digging cycles.

Tower Cranes & Lifting Equipment — Center-drive internal gear configuration suits slewing drives in tower cranes where compact height is critical.

Bending Robots & Gantry Robots — Low weight (55 kg) and tight running accuracy (radial ≤ 0.2 mm) make it suitable for industrial robot arm joints.

Solar Trackers & Wind Turbines — Lightweight direct-drive design supports slow-speed, continuous-duty solar tracking and wind turbine yaw systems.

MRO & Energy / Mining Replacement — As a confirmed VLI200744N equivalent, it's a go-to solution for maintenance teams replacing worn slewing rings in the field.

Ordering & Delivery Information

We understand that downtime is costly. Here's what you can expect when you order from us.

· ✅ In-stock standard models: Ships in 3–7 business days

· ✅ Non-stock standard models: Produced in 25–30 days

· ✅ MOQ: 1 piece — no large order required

· ✅ Factory direct pricing — competitive FOB Luoyang rates

· ✅ Custom non-standard sizes available (2D drawings provided; 3D drawings not provided)

· ✅ Exported to 50+ countries including Germany, USA, Australia, and the Middle East

Certification

FAQ

Q1: How does a slewing bearing actually work?

A: Rolling elements travel along raceways between inner and outer rings, transferring loads from the rotating part to the fixed structure. In a four-point contact ball design like the RKS.22.0741 slewing bearing, each ball contacts the raceway at 4 points — handling bidirectional axial forces and tilting moments simultaneously.

Q2: How do I choose the right seal configuration?

A: Match your environment: standard NBR seals work fine for dry indoor use. Dusty or outdoor sites need heavy-duty multi-lip seals. Marine or port equipment needs labyrinth or multi-lip seals — saltwater entering the raceway triggers electrochemical corrosion even when the bearing isn't rotating. Don't cut costs on sealing.

Q3: What is the correct bolt tightening procedure?

A: Use a calibrated torque wrench at approximately 70% of bolt yield strength. Tighten in a cross-diagonal pattern over 2–3 passes — never sequentially around the circle. Mark bolt heads with paint after final torque for visual loosening checks. Replace bolts as a full set if any are stretched or damaged.

Q4: Why do slewing bearings rust, and how can I prevent it?

A: The direct cause is moisture or water reaching the raceway, or humid storage. Port and offshore equipment is especially vulnerable — saltwater accelerates electrochemical corrosion even at standstill. Prevent it with good sealing, regular regreasing, freshwater rinsing of salt deposits, and proper covered storage.

Q5: How long does production take?

A: Standard in-stock models ship in 3–7 days. Non-stock standard models take 25–30 days. Custom parts typically require 60–90 days depending on complexity. We recommend maintaining safety stock for critical equipment — don't wait for a failure before ordering.

Q6: What determines the price of a slewing bearing?

A: Key cost drivers include: raw material weight (forged alloy steel), diameter and structure type, heat treatment and grinding precision (P5/P4 adds significant cost), gear machining, seal and coating specifications, and order quantity. Unusually low quotes often reflect compromised material quality or skipped heat treatment steps.

Q7: Can this bearing be remanufactured?

A: Yes. The INA VLI200744-N — a confirmed cross-reference for this model — is officially marked as remanufacturable in Schaeffler medias. Large-diameter slewing rings can often be reconditioned by regrinding raceways, fitting oversized rolling elements, and replacing seals, provided core material fatigue limits have not been exceeded.

Contact Us

Ready to get a quote for the RKS.22.0741 Slewing Bearings or need a cross-reference check? Email us at mia@hgb-bearing.com — we respond within 24 hours.