High-precision rotary bearings for cranes, excavators & wind turbines at unbeatable factory prices. ISO-certified quality with superior load capacity. Bulk discounts available.
Price:
negotiation
MOQ:
1(negotiation)
Delivery Time:
15days(as per order)
Brand:
OEM, neutral/HRB/LYC/ZWZ/NSK/SKF/NTN/KOYO/FAG
Product 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) |
|---|---|---|---|---|
| 131.25.500 | 366 | 634 | 148 | 224 |
| 131.25.560 | 426 | 694 | 148 | 240 |
| 131.25.630 | 496 | 764 | 148 | 270 |
| 131.25.700 | 576 | 844 | 148 | 300 |
| 131.32.800 | 636 | 964 | 182 | 500 |
| 131.32.900 | 736 | 1064 | 182 | 600 |
| 131.32.1000 | 836 | 1164 | 182 | 680 |
| 131.32.1120 | 950 | 1284 | 182 | 820 |
| 131.40.1250 | 1055 | 1445 | 220 | 1200 |
| 131.40.1400 | 1205 | 1595 | 220 | 1300 |
| 131.40.1600 | 1405 | 1795 | 220 | 1520 |
| 131.40.1800 | 1605 | 1995 | 220 | 1750 |
| 131.45.2000 | 1779 | 2221 | 231 | 2400 |
| 131.45.2000.04 | 1779 | 2304 | 231 | |
| 131.45.2240 | 2019 | 2461 | 231 | 2700 |
| 131.45.2500 | 2279 | 2721 | 231 | 3000 |
| 131.45.2800 | 2579 | 3021 | 231 | 3400 |
| 131.50.3150.12K | 2760.5 | 3432 | 270 | 5174 |
| 131.50.3150 | 2826 | 32432 | 270 | 5000 |
| 131.30.3150.12K | 2922 | 3476 | 182 | 2392 |
| 131.50.3550 | 3268 | 3832 | 270 | 5600 |
| 131.50.4000 | 3718 | 4282 | 270 | 6400 |
| 131.50.4000.04K | 3718 | 4400 | 270 | 6377 |
| 131.50.4500 | 4218 | 4782 | 270 | 7100 |
| 131.50.4500.04 | 4218 | 4906 | 270 | 7250 |
| 131.60.5000.04 | 4670 | 5440 | 320 | 11752 |
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Tianyuqi Bearing Technology Co., Ltd
Location
A2699, Fengshang Cultural and Creative Center, Liangxi District, Wuxi, Jiangsu, China
Contact Person
Lydia