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Luoyang Longda Bearing Co., Ltd.

Blade Bearing, Wind Turbine Bearing, Wind Bearing manufacturer / supplier in China, offering Blade Bearing Yaw Bearing Pitch Bearing, Single-Row Four Point Contact Slewing Ball Bearing with Internal Gear 9I-1b35-0825-1077, Four-Point Non-Gear Single-Row Contact Ball Slewing Bearing 90-1b13-0220-0318 and so on.

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Supplier Homepage Product Special Bearings Blade Bearing Yaw Bearing Pitch Bearing

Blade Bearing Yaw Bearing Pitch Bearing

FOB Price: Get Latest Price
Min. Order: 1 Piece
Production Capacity: 2000 Sets/Month
Transport Package: Wooden Case
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: Blade bearing, Yaw bearing, Pitch bearing
  • The Number of Rows: Single
  • Material: Bearing Steel
  • Load Direction: Radial Bearing
  • Closures: Open, Metal Sealed, Rubber Sealed, Nylon Sealed
  • Vibration Level Codes: V1, V2, V3
  • Precision Rating: Z1, Z2, Z3
  • Delivery Date: Within 20-30days Normally / as Requested
  • Trademark: LDB
  • Origin: China
  • Rolling Body: Ball Bearings
  • Outer Dimension: Large (200-430mm)
  • Spherical: Non-Aligning Bearings
  • Separated: Unseparated
  • Accuracy Lever: Abec-1, Abec-3, Abec-5
  • Clearance: C2, C0, C3, C4, C5
  • Supply Ability: 2000 Sets Per Month
  • Export Markets: Global
  • Specification: ISO
  • HS Code: 84821090
Product Description
Wind Generator Bearing, Wind Turbine Bearing

Structure of Yaw and Pitch Bearing
        Generally, yaw and pitch bearing stuctures are single row ball slewing rings four-point contact bearing and double row ball slewing ring four-point contact bearing. And both these two types of bearings can be further divided into bearings without gears, bearings with internal gears, bearings with outer gears according to gear position.

Material and heat treatment
        Rolling elements in yaw and pitch bearing are made of GCr15 or GCr15SiMn bearing steel according to GB/T 18254-2002. Their heat treatment should comply with JB/T 1255-2001. Other materials with similar or better properties can also be used.
        The material of rings in yaw and pitch bearing is 42CrMo or others that meets technique requirements according to GB/T3077-1999. Hardness after hardening and quenching should be 229HB~269HB, for raceway after quenching 55HRC~62HRC. The effect hardened thickness of race way should meet the requirement.

Tolerance and clearance
        Generaly radial and axial clearance of yaw bearing is0~50μ M. They can be adjusted according to customer requirement. Radial and axial clearance of pitch bearing is less than 0.

Starting torque
        Please consult with our company

Lubrication hole
        Yaw and pitch bearings is lubricated through lubrication hole, which is screwed hole with M10X1

Seal
        For yaw and pitch bearing, seal material should be NBR according to HG/T 2811-1996 or better material. We use world famous seal with good performance and reliable quality for our pitch and yaw bearing.

Spacer and cage
        Yaw bearing of our company has spacers that are self-lubricated and can compensate for lubrication when lubrication oil is unevenly distributed in order to maintain best lubrication status between balls and groove contact areas.
        Our pitch bearing uses integrated steel cage which has simple structure and can save space and accommodate more balls to increase load capacity. Compared with traditional segmented cage, integrated cage is easier to assemble and more stable and reliable.

Preservative treatment
        For yaw and pitch bearing, except for groove and gear all other surfaces should be applied thermal spraying anti-corrosion treatment according to GB/T9793-1997 and GB/T8427-1996. When applied zinc coating, the thickness of anti-corrosion should be no less than 160μ M. Other anti-corrosive treatment shall be applied if it meets performance requirements of machines.
Packaging & Shipping
1. Your inquiry to our products & price will be replied within 24 hours.
2. OEM & ODM project are highly welcomed , we have strong R& D team here to help.
3. Packed  in Wooden case.
4. We have quantity In Stock.
Company Information
LUOYANG LONGDA BEARING CO.,LTD (LDB company), established in1999, located in Luo Yang City.
We owns more than 100 staffs and have nearly 60 all kinds of bearing manufacturing and testing facilities,
LDB Bearing company specilized in designing, manufacturing and selling slewing bearings application for excavator.
 
Quality Control 
Our company inspecter will check the products one by one before we sent it out, and we can also follow customers' special requests to control the quality. We have got little feedback of quality issue from customers these years. So please rest assure.
 ISO 9001:2000
 
 Contact us 
 
                   Company Name:Luoyang Longda Bearing Co., Ltd.
                                Address:Yiyang Bearing Industry Zone, Luoyang City, Henan, China (Mainland)
                                Website:http://www.ldb-bearing.com
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