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High-precision rotary bearings for cranes, excavators & wind turbines at unbeatable factory prices. ISO-certified quality with superior load capacity. Bulk discounts available.
High-precision rotary bearings for cranes, excavators & wind turbines at unbeatable factory prices. ISO-certified quality with superior load capacity. Bulk discounts available.
Specifications
Material :
High-Carbon Chromium Steel
Payment Terms :
L/C,T/T,Western Union
Brand Name :
OEM, neutral/HRB/LYC/ZWZ/NSK/SKF/NTN/KOYO/FAG
Packaging Details :
sea worthy standard
MOQ :
1(negotiation)
Price :
negotiation
Supply Ability :
50,000pcs/month
Delivery Time :
15days(as per order)
Precision Grade :
P0, P6, P5 (Optional); Surface Roughness: Ra ≤ 0.2μm; Axial Clearance: 0.02-0.05mm (Adjustable)
Customization :
Accept
Diameter Range :
100mm - 15,000mm (Customizable; Large-sized bearings can be segmented for transportation)
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
Model Number :
131.25.500/131.25.560/131.25.630/131.25.700/131.32.800/131.32.900/131.32.1000/131.32.1120/131.40.1250/131.40.1400/131.40.1600/131.40.1800/131.45.2000/131.45.2000.04/131.45.2240/131.45.2500/131.45.2800/131.50.3150.12K/131.50.3150/131.30.3150.12K/131.50.3550
Place of Origin :
China
Description
High-Precision Rotary Bearings
Professional slewing bearings for cranes, excavators, and wind turbines at unbeatable factory prices. ISO-certified quality with superior load capacity. Bulk discounts available.
Manufacturing Excellence
We are a professional slewing bearing manufacturer in China, specializing in high-precision slewing rings for heavy-duty applications. All products are factory-direct supplied, eliminating middleman costs and ensuring competitive pricing without compromising quality.
Key Advantages
Feature Factory Advantage
Forged & Quenched Raceway 42CrMo / 50Mn forged rings, induction hardened raceway HRC 55-62, superior load capacity and long service life
High Gear Precision Internal / External / No Gear options, gear accuracy up to DIN 6 / AGMA 9
Advanced Sealing System Triple-lip heavy-duty seal prevents grease leakage and contamination ingress
OEM & Customization Custom OD/ID, bolt hole patterns, tooth profiles, and special coatings available
Direct Factory Pricing No trading company markup — get manufacturer-level EXW/FOB pricing
Short Lead Time Standard models 3-7 days ready for shipment; customized orders within 20-25 days
Quality Assurance 100% rotational torque and clearance tested before packing; ISO 9001:2015 Certified
Available Series & Specifications
Series Type Typical Application
01 Series Single Row Ball Slewing Bearing Small excavators, light-duty turntables
02 Series Double Row Ball Slewing Bearing Truck cranes, aerial work platforms
11 Series Cross Roller Slewing Bearing Welding positioners, precision rotary tables
13 Series Three-Row Roller Slewing Bearing Heavy excavators, offshore cranes, wind turbines
Light Series Thin Section Slewing Bearing Solar trackers, medical equipment, radar antennas
Technical Specifications
Parameter Standard Value
Material 42CrMo / 50Mn Forged Steel
Raceway Hardness HRC 55-62
Gear Hardness HRC 50-55 (Induction Hardened)
Clearance 0.05 - 0.30 mm (Application Specific)
Lubrication Grease Nipple / Oil Hole Standard
Corrosion Protection Anti-Rust Oil Coating + Export Wooden Case
Applications
Excavator Truck Crane Tower Crane Solar Tracker Wind Turbine Welding Positioner Marine Deck Crane Rotary Drilling Rig Radar Antenna Tunnel Boring Machine
Request a Quote
Please provide the following for a fast quotation:
  • Outer Diameter (OD) / Inner Diameter (ID) / Height (H)
  • Gear Type: Internal / External / No Gear
  • Quantity Required
13 Series Dimensions
Current bearing designation d (mm) D (mm) T (mm) Weight (kg)
131.25.500366634148224
131.25.560426694148240
131.25.630496764148270
131.25.700576844148300
131.32.800636964182500
131.32.9007361064182600
131.32.10008361164182680
131.32.11209501284182820
131.40.1250105514452201200
131.40.1400120515952201300
131.40.1600140517952201520
131.40.1800160519952201750
131.45.2000177922212312400
131.45.2000.0417792304231
131.45.2240201924612312700
131.45.2500227927212313000
131.45.2800257930212313400
131.50.3150.12K2760.534322705174
131.50.31502826324322705000
131.30.3150.12K292234761822392
131.50.3550326838322705600
131.50.4000371842822706400
131.50.4000.04K371844002706377
131.50.4500421847822707100
131.50.4500.04421849062707250
131.60.5000.044670544032011752
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High-precision rotary bearings for cranes, excavators & wind turbines at unbeatable factory prices. ISO-certified quality with superior load capacity. Bulk discounts available.

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Product Detail
Material :
High-Carbon Chromium Steel
Payment Terms :
L/C,T/T,Western Union
Brand Name :
OEM, neutral/HRB/LYC/ZWZ/NSK/SKF/NTN/KOYO/FAG
Packaging Details :
sea worthy standard
MOQ :
1(negotiation)
Price :
negotiation
Contact Supplier
High-precision rotary bearings for cranes, excavators & wind turbines at unbeatable factory prices. ISO-certified quality with superior load capacity. Bulk discounts available.

Wuxi Tianyuqi Bearing Technology Co., Ltd

Verified Supplier
1 Years
jiangsu, wuxi
Since 1999
Business Type :
Manufacturer, Exporter
Main Products :
Spherical Roller Bearing, Tapered Roller Bearing, Deep Groove Ball Bearing
Total Annual :
5000000-10000000
Employee Number :
100~150
Certification Level :
Verified Supplier
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