Flangeless Crane Wheel—Type WL
Material:
42CrMo, 65Mn, #65 Steel
Surface Hardness:
HB330-380 (Depth ≥20mm)
Machining Tolerance:
CNC Machined ±0.01mm
Standards:
DIN 15070, ISO, FEM, AISE, CE Certified
Hareness Depth:
≥20mm
Diameter:
250–850mm (Custom to 2000mm)
As a leading manufacturer of flangeless crane wheels in China, Glory Rail offers forged flangeless crane wheel solutions equipped with horizontal roller guides—anti-rail-gnawing flangeless crane wheels suitable for port cranes, AS/RS stacker cranes, and automated material handling systems.
100% Response Rate | ISO9001 Certified | MTR Report Included
Professional Flangeless Crane Wheel Manufacturer
A flangeless crane wheel, also known as a rimless crane wheel or a crane wheel without a flange, features a smooth cylindrical tread surface with no protruding flanges on either side. Unlike single-flange or double-flange wheels, which rely on flange-to-rail contact for lateral guidance, the flangeless flat-tread crane wheel separates the load-bearing function from the guidance function—the wheel tread bears the vertical load, while a separate crane wheel guide roller system is responsible for lateral alignment and derailment prevention.
At Glory Rail, our WL-type flangeless crane wheels are specifically designed for applications where traditional flanged wheels cause excessive track wear, track gouging, or frequent maintenance. Each wheel is manufactured from high-quality 42CrMo crane-grade alloy steel as a forged flangeless crane wheel, and undergoes precision CNC machining and induction surface hardening. As a reliable supplier of flangeless running wheels, the wheels we provide achieve a running accuracy of ±2 mm and extend the wheel-to-rail service life by more than 30% compared to traditional flanged wheels.
Key Advantage-Anti-Rail-Gnawing Design:
The anti-rail-gnawing flangeless crane wheel completely eliminates flange-to-rail friction by transferring all lateral forces to the horizontal roller guide system for crane wheels. This “separation of load-bearing and guidance” approach is the ultimate solution to the causes and remedies of crane rail gnawing—a common failure mode in heavy-duty cranes, where flange-to-rail contact causes accelerated wear on both the wheel flange and the rail side. Results: No flange wear, smoother operation, and significantly reduced maintenance costs.
Double Rim Crane Wheel Technical Specifications
| Parameter | Specification | Notes / Tolerance |
|---|---|---|
| Type Code | WL (Rimless / Flangeless) | Also known as flangeless crane wheel |
| Wheel Tread Diameter (D) | 250 – 850 mm (custom to 2000mm) | Standard sizes: 250, 315, 400, 500, 630, 800 mm |
| Wheel Tread Width (B1) | 80 – 220 mm | Flat cylindrical tread, wider than flanged wheels for larger contact area |
| Bore Diameter (d) | 50 – 320 mm | Bearing bore tolerance: H7 / H8 as per drawing |
| Wheel Load Capacity | 1 – 200 tons per wheel | Supports light-duty to super heavy-duty cranes |
| Material Options | 45# steel wheel / 65Mn crane wheel / 42CrMo crane wheel | Forged or cast; other alloy steels on request |
| Production Process | Forging / Casting + CNC Machining | Forged flangeless wheel for heavy duty (forging ratio ≥ 2.5) |
| Surface Hardness | HB 330 – 380 | Induction hardened tread surface |
| Hardening Depth | ≥ 20 mm | Induction quenching + tempering |
| Heat Treatment Method | Q&T + Induction Surface Hardening + Low-Temp Tempering | Compound process for high strength + wear resistance + toughness |
| Bearing Type | Rolling / Sliding bearing | Tapered roller, spherical roller, or plain bearing |
| Guide Roller System | Horizontal guide rollers (adjustable) | Required for crane wheel guide roller anti-derailment |
| Running Accuracy | ± 2 mm | With properly installed horizontal guide roller for crane wheel |
| Surface Treatment | Coating / Heat Treatment / Plating | Painting, zinc plating, anti-corrosion coating for outdoor use |
| Processing Accuracy | Dimensional tolerance up to ±0.01 mm | Precision CNC machining with in-process gauging |
| Applicable Standards | JB/T 6392, DIN 15070, ISO, FEM, AISE, JIS, BS, GOST, GB/T | Manufactured to customer’s specified standard |
| NDT Inspection | 100% Ultrasonic Testing (UT) per JB/T 6392 | Internal defect detection + surface crack inspection |
| Customization | Drawing-based manufacturing | Flangeless crane wheel made to drawing — material, size, hardness all customizable |
Need special sizes or configurations? We manufacture custom flangeless crane wheels and matching flangeless wheel roller assemblies/kits for monorail systems, AS/RS stacker cranes, and specialized anti-rail-biting applications.
Complete Flangeless Wheel Roller Set / Kit with Guide Rollers
Flangeless crane wheels cannot operate safely without a matching guidance system. Glory Rail offers a complete flangeless wheel roller set/kit solution—including wheels, crane wheel guide roller assemblies, axles, bearings, and bearing housings—all precision-engineered as an integrated unit. As a supplier of flangeless crane wheel kits with guide rollers, we ensure that every rimless crane travel wheel assembly meets the highest standards for derailment prevention and operational reliability.
Flangeless Wheel Body: Forged flangeless crane wheel with a smooth cylindrical tread and a wider contact surface for improved load distribution. Material: 42CrMo crane wheel grade, induction hardened to HB 330–380.
Heavy-Duty Bearings: CNC-machined ductile iron or cast steel bearing housings, with optional SKF, FAG, or NSK self-aligning roller bearings. Ensures precise alignment of the flangeless wheel roller set/kit.
Precision-Forged Shafts: Manufactured from high-strength 42CrMo crane wheel/40Cr alloy steel, quenched and tempered, and featuring precision-ground keyways, for use in non-flanged crane traveling wheel assemblies.
100% Rigorous Quality Inspection: Each flangeless crane wheel assembly undergoes dynamic balancing, 100% ultrasonic testing (UT) in accordance with the JB/T 6392 standard, and dimensional tolerance verification prior to shipment.
Material Selection Guide
Advanced Crane Wheel Material Selection & TGL/DIN Customization
Since flangeless crane wheels lack lateral flange restraints, they may be subjected to greater lateral stresses during operation. Therefore, the choice of material is even more critical than for flanged wheels. As an experienced flangeless crane wheel manufacturer in China, Glory Rail offers the following material options for your rimless crane wheels:
Standard Grade
45# Steel
✔ Medium-carbon steel (0.42–0.50% carbon);
✔ 45# Steel Crane Wheels—An Economical and Versatile Choice;
✔ Tensile Strength: 600–700 MPa (normalized and tempered);
✔ Suitable for light- to medium-duty applications (A1–A4);
✔ Single-wheel load: approximately 20 metric tons or less;
✔ Hardness after normalization and tempering: HB 260–300
Heavy Duty
65Mn Steel
✔ Medium- to high-carbon spring steel;
✔ 65Mn crane wheels—good hardenability and wear resistance;
✔ Tensile strength: 700–800 MPa (normalized and tempered);
✔ Suitable for medium-duty applications (A3–A5);
✔ Single-wheel load: approximately 50 metric tons or less;
✔ Flange hardness after quenching: HB 300–340
Cast Option
42CrMo Alloy Steel
✔ High-Strength Chromium-Molybdenum Steel (GB/T 3077 / EN 10083)
✔ 42CrMo Crane Wheels—The Top Choice for Heavy-Duty Applications
✔ Tensile strength: 900–1100 MPa; Yield strength: 550–750 MPa
✔ Forging ratio ≥ 3.5; dense, defect-free microstructure
✔ Load capacity up to 200 metric tons; Duty Class A5–A8
✔ Flange hardness after quenching: HB 340–380
Not sure which material to choose? Our engineering team can assist you in selecting the right material for your flangeless crane wheels based on your specific load, speed, duty cycle, and environmental conditions.
As a reliable supplier of flangeless running wheels, Glory Rail has provided wheel products for port cranes, steel mills, AS/RS systems, and automated production lines worldwide.
Quality Control & Manufacturing Process
Every Glory Rail dual-flange crane wheel undergoes a rigorous, multi-stage quality inspection process.
Raw Material Inspection:
Ultrasonic and magnetic particle testing to ensure there are no internal defects.
CNC Machining:
Precision CNC turning and milling, with in-process dimensional verification at every stage.
Heat Treatment:
Induction surface hardening — hardness HB330–380, hardening depth ≥20 mm.
Final Inspection & Packaging:
100% final inspection + hardness test report, export-grade wooden crate packaging.
Want to see more inspection photos or quality certificates? Contact us to obtain the complete quality documentation for our heavy-duty double-rim wheels.
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