China Good quality Reduce Noise and Vibration Levels CZPT Insert Bearing screw blade shaft

Product Description

NU 204 ECPHA

Detailed Photos

Insert bearings are based on sealed deep groove ball bearings. This variant is intended for use in applications where the direction of rotation is constant. It has an inner ring extended on both sides, with an eccentric locking collar, enabling quick and easy mounting CZPT the shaft.

  • Quick and easy to mount CZPT the shaft
  • Long service life
  • Reduce noise and vibration levels

 

Product Description

Dimensions

Bore diameter 44.45 mm
Outside diameter 85 mm
Width, total 56.3 mm
Width, inner ring 42.8 mm
Width, outer ring 22 mm

 

Performance

Basic dynamic load rating 33.2 kN
Basic static load rating 21.6 kN
Limiting speed 850 r/min
Note Limiting speed with shaft tolerance h6

 

 

Dimensions

d

44.45 mm

Bore diameter
D

85 mm

Outside diameter
B1

56.3 mm

Overall bearing width
B

42.8 mm

Width of inner ring
C

22 mm

Width of outer ring
d1

≈56.8 mm

Outside diameter of inner ring
d2

62 mm

Outside diameter of locking collar
B4

6.75 mm

Distance from side face to thread centre
r1,2

min.1 mm

Chamfer dimension of inner ring
s1

34.9 mm

Distance from locking device side face to raceway centre

Calculation data

Basic dynamic load rating C

33.2 kN

Basic static load rating C0

21.6 kN

Fatigue load limit Pu

0.915 kN

Limiting speed  

850 r/min

   

Limiting speed with shaft tolerance h6

Calculation factor f0

14

Company Profile

ZheJiang CZPT Industrial Technology Co., Ltd set up since 1997, with 20 years development, we become 1 of the best companies in the industry for mechanical and electrical products system integration, logistics service and investment. The company has set up 21 subsidiaries located in southern, central, eastern and northern China, .

The products categories include:

1, Transmission Products: High and low voltage electric motors, geared motors, gear boxes, bearings, inverter and complete electrical cabinets

2, Automation Products: Automation systems, motion control, low voltage control products and systems, sensor and communication products,

3, Power distribution Products: Low-voltage power distribution products, medium voltage circuit breaker, intelligent building system and equipment.

4, Machinery components.

Count on our 20 years industry experiences. ZheJiang CZPT Industrial Technology Co., Ltd give you one-stop industrial products sourcing, procurement, system integration and services, satisfy your different needs in the industry.

We are looking CHINAMFG to cooperating with you.
 

Office Block

 

Warehouse Block

FAQ

1. Who are we?
We are based in HangZhou, China, start from 2015,sell to DomesticMarket(89.00%),Eastem Europe(3.00%),SoutheastAsia(2.00%),SouthAmerica(2.00%),Northern Europe(1.00%),Western Europe(1.00%),Oceania(1.00%),NorthAmerica(1.00%) There are total about 11-50 people in our office.

2. How about the after services and technical?
We offer 24 hours online customer service and The technical support and guidance online.

3. How can we guarantee quality?
Always a pre-production sample before mass production,Always final Inspection by Take photo and video as your demands before shipment:We provide you 3 months guarantee for used and 1 YEAR warranty for new.

4. How about the packing when they are sent out?
In order to save the freight and reduce your budget, we choose the packaging forenvironment-friendly. We use foam board with 3 cm thick to fill in all around the box insideto protect parts, then use carton to pack the parts, but if thev are too heavy, we wilcustomized the wooden box for them.

5. What terms services can we provide?
1:Payment: T/T, Paypal, Western union, etc
2:Express: UPS,DHL,FEDEX,TNT,EMS ,etc

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Aligning: Non-Aligning Bearing
Separated: Unseparated
Feature: Vacuum, Magnetically, Low Temperature, Corrosion Resistant, High Temperature, High Speed
Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

screw jack

How do screw jacks compare to other methods of lifting and adjusting loads?

When comparing screw jacks to other methods of lifting and adjusting loads, several factors come into consideration. Here’s a comparison of screw jacks with other commonly used methods:

  • Hydraulic Systems: Screw jacks offer several advantages over hydraulic systems:
  • Control and Precision: Screw jacks provide precise control and incremental adjustments. Hydraulic systems, on the other hand, may have limitations in terms of fine-tuning and precise positioning.
  • Self-Locking: Screw jacks have a self-locking feature, which means they can hold positions without the need for continuous hydraulic pressure. Hydraulic systems typically require constant pressure to maintain position, which can be a disadvantage in certain applications.
  • Simplicity and Maintenance: Screw jacks are generally simpler in design and require less maintenance compared to hydraulic systems. Hydraulic systems involve additional components such as pumps, hoses, valves, and hydraulic fluid, which can introduce complexity and maintenance requirements.
  • Load Capacity: Screw jacks are available in a wide range of load capacities, making them suitable for both light-duty and heavy-duty applications. Hydraulic systems can handle higher loads but may be less suitable for precise adjustments in lighter load ranges.
  • Pneumatic Systems: Screw jacks offer several advantages over pneumatic systems:
  • Precision and Control: Screw jacks provide precise and controlled adjustments, allowing for accurate positioning. Pneumatic systems may have limitations in terms of fine-tuning and precise control.
  • Self-Locking: Screw jacks have a self-locking feature, which allows them to hold positions without the need for continuous pneumatic pressure. Pneumatic systems require continuous pressure to maintain position, which can be a drawback in certain applications.
  • Energy Efficiency: Screw jacks are typically more energy-efficient compared to pneumatic systems since they do not require a constant supply of compressed air.
  • Load Capacity: Screw jacks can handle a wide range of load capacities, making them suitable for various applications. Pneumatic systems may have limitations in terms of handling heavy loads.
  • Electric Actuators: Screw jacks offer several advantages over electric actuators:
  • Load Capacity: Screw jacks are capable of handling high loads and are suitable for heavy-duty applications. Electric actuators may have limitations in terms of load capacity.
  • Self-Locking: Screw jacks have a self-locking feature, which allows them to hold positions without the need for continuous electric power. Electric actuators may require continuous power to maintain position.
  • Precision and Control: Screw jacks provide precise control and incremental adjustments. Electric actuators can offer precise positioning but may have limitations in terms of fine-tuning and incremental adjustments.
  • Cost-Effectiveness: Screw jacks are often more cost-effective compared to electric actuators, making them a preferred choice in certain applications.

It’s important to note that the choice between screw jacks and other methods depends on the specific requirements of the application, such as load capacity, precision, control, maintenance, and cost considerations. Each method has its strengths and limitations, and manufacturers and engineers evaluate these factors to determine the most suitable solution for a particular lifting or adjusting task.

screw jack

Can screw jacks be used for both light-duty and heavy-duty applications?

Yes, screw jacks are versatile mechanical devices that can be used for both light-duty and heavy-duty applications. Their design and construction allow them to handle a wide range of loads, making them suitable for various industrial, commercial, and residential tasks. Here’s how screw jacks are used in both light-duty and heavy-duty applications:

  • Light-Duty Applications: Screw jacks find application in numerous light-duty tasks where precise positioning, lifting, or adjustment is required. Examples of light-duty applications include:
  • Workbenches and assembly stations: Screw jacks can be employed to adjust the height of workbenches or assembly stations, allowing operators to work at comfortable levels.
  • Stage and theater equipment: Screw jacks are used to raise or lower stage platforms, lighting fixtures, or props, allowing for easy setup and adjustments during performances.
  • Medical and healthcare equipment: Screw jacks are utilized in medical beds, examination tables, or dental chairs to enable height adjustments for patient comfort and medical procedures.
  • Optical and laboratory equipment: Screw jacks provide precise vertical positioning in optical systems, microscopes, or laboratory setups, ensuring accurate alignment and focus.
  • Residential applications: Screw jacks can be used in home applications, such as adjustable tables, ergonomic furniture, or lifting mechanisms for storage units.
  • Heavy-Duty Applications: Screw jacks are also capable of handling heavy-duty applications that involve substantial loads and demanding conditions. Examples of heavy-duty applications include:
  • Industrial machinery: Screw jacks are utilized in various industrial machinery, including presses, injection molding machines, or material handling equipment, to provide precise control and lifting capabilities.
  • Construction and infrastructure projects: Screw jacks are employed in construction tasks, such as formwork systems, scaffolding, or temporary structures, for lifting, leveling, or supporting heavy loads.
  • Transportation and automotive: Screw jacks find application in automotive lifts, vehicle maintenance equipment, or cargo handling systems, enabling the lifting and positioning of heavy vehicles or loads.
  • Shipbuilding and offshore industries: Screw jacks are used in shipbuilding and offshore applications for tasks such as aligning sections, adjusting propeller pitch, or lifting heavy components during construction or maintenance.
  • Mining and heavy equipment: Screw jacks are utilized in mining machinery, cranes, or heavy equipment for load positioning, maintenance, or stabilization.

It’s important to note that the specific design, size, and load capacity of the screw jack should be matched to the requirements of the application. Manufacturers provide a wide range of screw jack models with varying load capacities, travel distances, and configurations to accommodate both light-duty and heavy-duty applications. Proper selection and installation of the screw jack ensure optimal performance and safety in diverse tasks.

screw jack

How do manufacturers ensure the quality and reliability of screw jack mechanisms?

Manufacturers employ various quality control and testing measures to ensure the quality and reliability of screw jack mechanisms. These measures are implemented throughout the manufacturing process to verify that the screw jack meets the required standards and performance specifications. Here are some common practices manufacturers use to ensure quality and reliability:

  • Design and Engineering: Manufacturers invest in robust design and engineering processes to develop screw jack mechanisms that meet the intended specifications. This includes selecting appropriate materials, determining the optimal thread design, and performing structural analysis to ensure the screw jack can handle the expected loads and movements. Thorough design and engineering processes contribute to the overall quality and reliability of the mechanism.
  • Material Selection: Manufacturers carefully select materials with the necessary strength, durability, and corrosion resistance for the construction of screw jack mechanisms. High-quality materials, such as alloy steels or stainless steels, are often chosen to ensure the longevity and reliability of the screw jack. Material selection is based on factors such as load requirements, environmental conditions, and industry standards.
  • Quality Assurance: Manufacturers implement comprehensive quality assurance processes to monitor and control the manufacturing steps. These processes include inspections, audits, and documentation to ensure that each screw jack meets the specified quality standards. Quality assurance measures may involve checks for dimensional accuracy, thread quality, surface finish, and proper assembly. Through quality assurance, manufacturers can identify and address any potential defects or deviations from the desired specifications.
  • Testing and Performance Evaluation: Manufacturers conduct rigorous testing and performance evaluations to verify the functionality, load capacity, and reliability of screw jack mechanisms. This may involve load testing, endurance testing, and cycling tests to simulate real-world operating conditions. Testing helps validate the performance of the screw jack and ensures that it can handle the intended loads and movements without failure or significant degradation over time.
  • Compliance with Standards: Manufacturers ensure that screw jack mechanisms comply with relevant industry standards and regulations. Compliance with standards such as ISO (International Organization for Standardization) or specific industry standards provides assurance of the quality and reliability of the product. Manufacturers may obtain certifications or undergo third-party audits to validate compliance with these standards.
  • Customer Feedback and Continuous Improvement: Manufacturers value customer feedback and use it to drive continuous improvement in the design, manufacturing, and performance of screw jack mechanisms. By actively seeking input from customers and end-users, manufacturers can identify areas for enhancement and implement changes to improve the quality and reliability of their products.

By implementing stringent design processes, careful material selection, thorough quality assurance, testing and performance evaluation, compliance with standards, and continuous improvement practices, manufacturers ensure the quality and reliability of screw jack mechanisms. These measures help deliver screw jacks that meet the industry’s expectations for performance, safety, and durability.

China Good quality Reduce Noise and Vibration Levels CZPT Insert Bearing   screw blade shaftChina Good quality Reduce Noise and Vibration Levels CZPT Insert Bearing   screw blade shaft
editor by CX 2024-04-04

Screw Jack

As one of the leading screw jack manufacturers, suppliers, and exporters of mechanical products, We offer screw jacks and many other products.

Please contact us for details.

Manufacturer supplier exporter of screw jack.

Recent Posts