AC100 Crane Slewing Bearing
2. Product Structure: Three-row roller structure
3. Size Range: Product size: 1679*137 (mm)
Machinable size range: 50-10000 (mm)
Customization is available to meet specific size requirements.
4. Material: Ring material: High-strength alloy steels such as 50Mn and 42CrMo
Rolling elements: Balls or rollers made of GCr15SiMn bearing steel
5. Applications: Construction Machinery: Excavators (medium to large tonnage), truck cranes, crawler cranes, tower cranes, truck-mounted cranes, stacker-reclaimers, etc.
- Product Description
AC100 Crane Slewing Bearing – Heavy-Duty Rotational Solution
When your crane operations demand reliability under extreme loads, the AC100 Crane Slewing Bearing delivers proven performance. This three-row roller slewing bearing is engineered specifically for mobile cranes handling 25-100 ton capacities. Built from high-strength 42CrMo alloy steel with advanced tooth surface hardening, it withstands the demanding conditions of construction sites, port operations, and oil field installations. Our design incorporates a dust-proof sealing system that ensures consistent rotation even in harsh desert and coastal environments. You get a bearing solution that combines load capacity, durability, and operational stability for critical lifting applications.
Product Details
The AC100 highlights a three-row roller configuration that disperses hub, outspread, and minute loads over different contact focuses. This structure diminishes stretch concentration and expands operational life. The external breadth measures 1679mm with a stature of 137mm, optimized for four-axle chassis cranes commonly utilized in holder taking care of and hardware installation.
Our fabricating prepare starts with fabric choice. We utilize 50Mn and 42CrMo high-strength amalgam steels for the rings, whereas rolling components are precision-ground from GCr15SiMn bearing steel. Warm treatment takes after Noise and ISO benchmarks, accomplishing surface hardness between 55-62 HRC on raceways.
The coordinates seal plan anticipates defilement from sand, tidy, and dampness. This assurance keeps up oil astuteness and decreases support intervals—critical for cranes working in Center Eastern climates or coastal ports.
Why Choose Us?
Manufacturing Capability: Our office houses CNC vertical machines, extinguishing machines, and equip hobbing Gear competent of creating slewing orientation from 50mm to 10,000mm distance across. This extend permits us to back everything from compact apparatus to ultra-heavy mining equipment.
Precision Guidelines: We make to four exactness grades—P0, P6, P5, and P4—giving you adaptability based on your application prerequisites. Our quality control employments facilitate measuring machines and vibration analyzers to confirm each unit some time recently shipment.
Customization Administrations: Past standard items, we handle non-standard ventures. If you require adjusted mounting measurements, uncommon equip arrangements, or elective fixing courses of action, our designing group works from your details. We too give switch designing administrations for out of date heading when unique drawings aren't available.
Global Involvement: With shipments to over 50 nations, we get it territorial compliance prerequisites and coordinations challenges. Our items serve clients over South Africa, Germany, Turkey, Australia, and all through the Middle East.
ISO 9001 Certification: Our quality administration framework guarantees reliable prepare control from crude fabric assessment through last testing. Full traceability documentation goes with each arrange.


Technical Specifications
Parameter | Specification |
Model | AC100 |
Structure Type | Three-row roller |
Outer Diameter | 1679 mm |
Height | 137 mm |
Ring Material | 50Mn / 42CrMo alloy steel |
Rolling Element Material | GCr15SiMn bearing steel |
Raceway Hardness | 55-62 HRC |
Precision Grade | P0, P6, P5, P4 (available) |
Gear Type | External (optional) |
Seal Type | Dust-proof integrated seal |
Operating Temperature | -30°C to +70°C |
Applicable Crane Capacity | 25-100 tons |
Certification

Features and Benefits
Load Distribution: The three-row roller design handles combined loads more effectively than single-row configurations. You experience smoother rotation under asymmetric loading conditions common during boom extension or offset loads.
Extended Service Life: Tooth surface hardening increases wear resistance on gear teeth by 40% compared to through-hardened alternatives. This translates to fewer replacements and lower total cost of ownership.
Environmental Resistance: Our sealing system blocks particle ingress down to 50 microns. This matters when your crane operates in dusty construction sites or sandy port areas where contamination typically accelerates wear.
Mounting Flexibility: Bolt hole patterns follow standard crane manufacturer specifications. You can integrate the AC100 Crane Slewing Bearing into existing equipment designs without custom brackets or adapters.
Consistent Performance: Low friction coefficients and controlled preload maintain smooth rotation across the full 360-degree travel. Operators notice easier slewing control and more precise load positioning.
Applications
Construction Sites: Three-axle and four-axle mobile cranes use this bearing for material handling in building construction, bridge assembly, and infrastructure development. The compact height fits within chassis constraints while providing adequate load ratings.
Port Operations: Container handling cranes benefit from the corrosion-resistant materials and robust sealing. The bearing maintains performance despite saltwater exposure and frequent load cycles.
Oil & Gas Industry: Five-axle heavy-duty cranes equipped with this bearing handle equipment installation and maintenance in refineries and drilling sites. The high-strength materials withstand shock loads during pipe handling.
Material Handling: Stacker-reclaimers and ship-loading equipment rely on continuous rotation capabilities. Our design supports both intermittent positioning and sustained slewing operations.
Installation Guide
Pre-Installation Review: Confirm mounting surface levelness inside 0.5mm over the distance across. Clean all jolt gaps and expel defensive coatings from contact surfaces.
Positioning: Utilize lifting gear evaluated for the bearing weight. Adjust jolt gaps carefully—forcing jolts can harm strings or misshape the ring.
Bolt Fixing: Take after a star design when torquing mounting jolts. Apply manufacturer-specified torque values in three stages: 30%, 70%, at that point 100%. Re-check torque after starting operation period.
Lubrication: Fill oil ports with lithium-based EP2 oil some time recently commissioning. Turn the bearing a few transformations to convey oil equally over raceways.
Initial Testing: Perform no-load revolution tests to check for authoritative or unordinary commotion. Degree breakaway torque and compare against detail sheets.




Exhibition
We attend many famous international exhibitions such as Shanghai International Maritime Exhibition,Mining World Russia, bauma China, CTT Russia, etc


Partners
Your trust, we cherish in heart all times and will reciprocate that trust with unwavering quality.



Packaging & shipping
Your goods are unique, and their journey should be flawless. Therefore, we offer professional and customized packaging services. Our experienced team will evaluate your goods' characteristics, transportation route, and environmental requirements to recommend the most secure solution, such as: wooden crate packaging, sturdy frame packaging, or composite reinforced packaging (wooden crate + iron frame).

Maintenance and Care
Lubrication Plan: Re-grease each 100 working hours or month to month, whichever comes to begin with. Increment recurrence in dusty situations or high-temperature conditions.
Visual Assessment: Check seals quarterly for splits or uprooting. Assess mounting jolts for releasing. See for oil spillage showing seal damage.
Rotation Quality: Screen for expanded commotion, vibration, or sporadic resistance amid slewing. These side effects demonstrate potential raceway harm or contamination.
Torque Confirmation: Re-check mounting jolt torque each 500 hours. Warm cycling and vibration can decrease clamping constrain over time.
Storage: If putting away save orientation, keep them flat in a climate-controlled environment. Pivot quarterly to anticipate brinelling from inactive loading.
Customer Reviews
"The AC100 has performed faultlessly in our forsake operations for over two a long time. The fixing framework truly works as publicized." - Development Chief, Center East
"Installation was direct, and the specialized back group given amazing direction all through the handle." - Gear Build, Germany


FAQ
Q: Can this bearing supplant other crane slewing bearing models?
A: Physical measurements and stack appraisals must coordinate your crane details. Give your current bearing demonstrate number, and we'll affirm compatibility.
Q: What's the anticipated benefit life?
A: Beneath ordinary working conditions with legitimate support, anticipate 8,000-12,000 working hours. Genuine life shifts with stack seriousness and natural factors.
Q: Do you supply heading with coordinates gears?
A: Yes. We fabricate outside and inside equip arrangements. Indicate your adapt module and tooth number requirements.
Q: What documentation comes with the bearing?
A: Each unit incorporates dimensional review reports, fabric certificates, and torque details. We give establishment drawings upon request.
Q: Can you alter the seal plan for extraordinary environments?
A: Our building group can adjust seal materials and setups for particular conditions. Contact Us with your natural parameters.
Q: How do I decide the rectify exactness grade?
A: P0 suits common development gear. P6 works for applications requiring smoother turn. P5 and P4 grades serve high-precision situating prerequisites.
Contact Us
Need technical support or a AC100 Crane Slewing Bearing solution? Reach out to our engineering team at mia@hgb-bearing.com for bearing selection assistance and quotations.












