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High Precision Excavator Slewing Ring Bearing - Heavy Duty Single Row Ball, Internal Gear, Customized for Crane & Construction Machinery (Factory Price) Type:XU120222

Brand Name:	OEM, neutral/HRB/LYC/ZWZ/NSK/SKF/NTN/KOYO/FAG
Model Number:	120.25.500/120.25.560/120.25.630/120.25.710/120.28.800/120.28.900/120.28.1000/120.28.1120/120.32.1250/120.32.1400/120.32.1600/120.32.1600.03K/120.32.1800/120.40.2000/120.40.2240/120.40.2500/120.40.2800/120.50.3150/120.50.3550/120.50.4000/120.50.4500
MOQ:	1(negotiation)
Price:	negotiation
Payment Terms:	L/C,T/T,Western Union
Supply Ability:	50,000pcs/month

Detail Information

Product Description

Detail Information

Place of Origin:

China

Product Type:

1. Single Row Four-Point Contact Ball Slewing Bearing2. Double Row Angular Contact Ball Slewing Bearing3. Single Row Cross Roller Slewing Bearing4. Three-Row Cylindrical Roller Slewing Bearing

Material:

High-Carbon Chromium Steel

Diameter Range:

100mm - 15,000mm (Customizable; Large-sized Bearings Can Be Segmented For Transportation)

Precision Grade:

P0, P6, P5 (Optional); Surface Roughness: Ra ≤ 0.2μm; Axial Clearance: 0.02-0.05mm (Adjustable)

Customization:

Lubrication:

Grease / Oil

Packing:

Customer Requirement

Packaging Details:

sea worthy standard

Highlight:

High precision excavator slewing bearing

Heavy duty slewing ring with internal gear

Customized slewing bearing for construction machinery

Product Description

Product Overview

Our slewing ring bearing (slewing bearing) is designed for heavy-duty rotary applications in Southeast Asia's infrastructure, mining, and renewable energy sectors. Suitable for excavators, cranes, wind turbines, solar trackers, and port machinery.

Technical Specifications

Parameter	Data
Inner diameter range	200 mm – 5000 mm
Outer diameter range	400 mm – 5500 mm
Height range	50 mm – 300 mm
Gear types	Internal gear, external gear, non-gear
Raceway types	Single row ball, double row ball, three row roller, cross roller
Material	50Mn, 42CrMo (forged steel)
Heat treatment	Induction hardening, HRC 55-62
Sealing	Double lip rubber seal (IP66 optional)
Lubrication	Pre-filled with grease, lubrication holes provided
Precision grade	P0, P5, P6 (ISO standard)

Applicable Standards & Certifications

ISO 9001:2015 certified
GB/T 2299-2002 standard
Third-party inspection available (SGS, BV, TÜV)

Application Scenarios by Market

Excavators & Cranes (Vietnam, Indonesia)
Direct replacement for Komatsu, Hitachi, Kobelco.Single row ball and double row ball types available. Internal or external gear options to match original equipment specifications.

Wind Turbines & Solar Trackers (Vietnam, Thailand)
Cross roller design with high precision rotation. Corrosion-resistant coating suitable for tropical humid climate. Low friction torque for tracking accuracy.

Port & Marine Equipment (Singapore, Malaysia)
Three row roller type for extreme heavy loads. IP66 sealing rating for water and dust protection. Design life of 20+ years under continuous operation.

Material & Process Highlights

Forged steel rings for higher strength and fatigue resistance
Induction hardened raceways with uniform hardness depth
Precision gear cutting with gear accuracy up to ISO 7
100% ultrasonic testing for internal defects

Quality Control

Raw material certificate (mill test report)
Dimensional inspection during and after production
Magnetic particle inspection for surface cracks
Hardness testing on raceway and gear teeth
Rotation torque test before packing

Packing & Delivery

Anti-rust oil coated on all exposed surfaces
Plastic wrap + craft paper + waterproof film
Wooden crate with steel strapping for sea freight
Loading supervision available upon request

Why Choose Us

Factory direct pricing
MOQ: 1 piece accepted
Technical drawings support (CAD, PDF)

Current bearing designation	Dimensions(mm)			weigh
Current bearing designation	d	D	T	(kg)
Type120
XU120222	140	300	36
120.25.500	398	602	75	8O
120.25.560	458	662	75	90
120.25.630	528	732	75	100
120.25.710	608	812	75	110
120.28.800	678	922	82	170
120.28.900	778	1022	82	190
120.28.1000	878	1122	82	210
120.28.1120	998	1242	82	230
120.32.1250	1110	1390	91	350
120.32.1400	1260	1540	91	400
120.32.1600	1460	1740	91	400
120.32.1600.03K	1460	1740	100	429
120.32.1800	1660	1940	91	500
120.40.2000	1825	2178	112	900
120.40.2240	2065	2418	112	1000
120.40.2500	2325	2678	112	1100
120.40.2800	2625	2978	112	1250
120.50.3150	2922	3376	134	2150
120.50.3550	3322	3776	134	2470
120.50.4000	3772	4226	134	2800
120.50.4500	4272	4726	134	3100

Tags:

Upgrade your machinery with our durable slewing bearings. Smooth rotation, all-weather performance, and exceptional wear resistance. Perfect for cranes, excavators, and more.

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Upgrade your machinery with our durable slewing bearings. Smooth rotation, all-weather performance, and exceptional wear resistance. Perfect for cranes, excavators, and more.

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Factory-direct customizable slewing bearings. Various sizes, gear options, and materials available. Competitive pricing, ready to install, and built for long service life.

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Precision-engineered slewing bearings for heavy-duty machinery. High load capacity, robust construction, and superior sealing for reliable performance in demanding applications.

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