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New Designed Double Row Ball Slew Bearing Internal Gear

Double row ball slewing bearing is mainly used for wind turbine electrical equipment and concrete transportation pump trucks. In wind power equipment, the bearing is installed at the root of the propeller to act as a side propeller. The clearance is required to be zero or negative, and the starting friction torque is very large and with high rotation accuracy. In terms of its own characteristics, this bearing has a compact structure, which effectively saves the center diameter of the inner and outer ring mounting holes and improves the load-bearing capacity.

Quantity:
  • 021.25.710
  • XUZOHU HELIN
  • Internal Gear

Double Row Ball Slewing Bearing(02Series)--Internal Gear

Characteristic of structure, performance and application

Double row ball slewing bearing has three seat ring, the steel ball and the spacing block can be directly arrange into the upper and lower races, two rows of upper and lower steel balls with different diameter are fitted according to the stress condition.
This kind of open assembly is very convenient, for the upper and lower bear raceway arc angles is 90°,which can bear large axial forces and tilting moment. When the radial force is greater than 0.1 times the axial force need to be specially designed the raceway.
Double row different ball slewing bearing’s axial and radial size are relatively large and solid in structure, so it is specially suitable for the medium diameter tower cranes, truck mounted cranes etc. loading and unloading machinery.

OUR ADVANTAGE: 

1. Fast: Be good at adapting, simple organization, high working efficiency,  be creative and accept all kinds of customization.

2. Flexible: streamlined personnel, short communication path, and problems can be solved quickly , perfect after -sales services .

3. Efficient: employees have higher comprehensive ability, high work efficiency, high output, good quanlity and short product delivery time.

WHY CHOOSE HELIN :

1,Helin slewing bearing is located in Xuzhou, a very famous Construction Machinery Base, and has its own stable, technically sound design, development, and manufacturing team.

2. The physical factory has a strong R&D team, and production equipment is advanced, production equipment is continuously increased and updated, and there are molding batch production lines with clear division of labor and high production efficiency. (Standard models with raw material in stock , delivery time within 7 days . )

3. The slewing bearing is exported to more than 30 countries, which obtain high praise and recognition from customers all over the world .And our engineer can come to your country to do measurements . 

Mob/ Whatsapp / Wechat : + 86- 180 8679 0390 

Tel : + 86 -516- 8788 0390

Email : info@helin-bearing.com

           tinaxzhelin@gmail.com

Please do not hesitate to reach our to us if you have any further questions. 

Note:
1. n1 is the nos of lubricating holes.Oil cup M10×1JB/T7940.1~JB/T7940.2.The Oil nipple's location can be change according to the user's application.
2. n-φcan change to tapped hole,the diameter of tapped hole is M,depth is 2M.
3. The tangential tooth force in the form is the max tooth force,the nominal tangential tooth force is 1/2 of the max one.
4. "K" is addendum reduction coefficient. 

NoInternal GearDimensionsMounting DimensionStructural DimensionGear DataGear circumferential forceWeight
DLkg
mmDdHD1D2nmmn1H1hbxmD ezNormalizingQuenching

mmmmmmmmmmmmmmmmmmmmmmZ 104NT 104N
1023.25.500616384106580420201849626600.55257723.75.2100
024.25.5006350.4594.56.2
2023.25.560676444106640480201849626600.55417843.75.2115
024.25.5606410.4694.56.2
3023.25.630746514106710550241849626600.56482.4814.56.2130
024.25.6308475.26068.3
4023.25.710826594106790630241849626600.56560.4944.56.2140
024.25.7108555.27068.3
5023.30.8009426581248987023022611429800.58619.278811.1200
024.30.80010614621014
6023.30.90010427581249988023022611429800.58715.290811.1250
024.30.90010714721014
7023.30.1000114285812410989023622611429800.510814821014300
024.30.100012796.8671216.7
8023.30.11201262978124121810223622611429800.510924931014340
024.30.112012916.8771216.7
9023.40.125014261074160137411264026515039900.5121012.88513.518.8580
024.40.1250141013.67315.821.9
10023.40.140015761224160152412724026515039900.5121156.89713.518.8650
024.40.1400141153.68315.821.9
11023.40.160017761424160172414764526515039900.5141349.69715.821.9750
024.40.1600161350.48518.125
12023.40.180019761624160192416764526515039900.5141545.611115.821.9820
024.40.1800161542.49718.125
13023.50.2000221517851902149185148338178471200.5161702.410724.133.31150
024.50.2000181699.29527.137.5
14023.50.2240245520251902389209148338178471200.5161942.412224.133.31500
024.50.2240181933.210827.137.5
15023.50.2500271522851902649235156338178471200.5182203.212327.137.51700
024.50.250020218811030.141.8
16023.50.2800301525851902949265156338178471200.5182491.213927.137.51900
024.50.280020248812530.141.8
17023.60.3150342828722263338296256458214561500.520276813937.752.23300
024.60.3150222758.812641.557.4
18023.60.3550382832722263738336256458214561500.520316815937.752.23700
024.60.3550223176.814541.557.4
19023.60.40004278372222641883812604510214561500.5223616.816541.557.44200
024.60.400025361014547.165.2
20023.60.45004778422222646884312604510214561500.5224122.818841.557.44700
024.60.450025411016547.165.2


FAQ

1: What are the shipping methods?

Ocean shipment to the port close to your city;  Air shipment to the airport close to your company;  Door to door service by international express ,DHL or TNT or others
2.When can I get the price? 
We usually quote within 12 hours after we get your inquiry. If urgent to get the price, please call us or tell us by email , we will regard your inquiry priority. 

3.You are a trader or a manufacturer? 

We are an industry and trade integration business, our factory located on Xuzhou City.

4.How about the payment terms?
We usually accept T/T or L/C or Alibaba insurance order. other terms also could be negotiated.

5.What is your minimum order?

Normally, our minimum order is 1pcs.

6.What is the delivery time?
If there are any parts in stock , delivery time is 3days . If standard model or Non- standard models , delivery time is around 25 days~45 days.

Product Inquiry
Phone/Whatsapp:
+86-516-8788 0390
+86 180 8679 0390
Opening hours:
Mon. - Fri. 8:30 - 18:00
ABOUT US
We are Xuzhou Helin Slewing Bearing Co.,Ltd Slewing bearing factory in Xuzhou city . Our slewing bearing size from 100 mm - 5000 mm with standard and non- standard models . Good product quality, short delivery time, suitable price, high cost performance . welcome to contact us . 
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