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Wholesale Tubular Self-lubricating Bronze Bushing Graphite Plugged Sliding Sleeve Bearing JPBW, JPBF

Tubular Self-lubricating Bronze Bushing Graphite Plugged Sliding Sleeve Bearing JPBW, JPBF

Product Description:

Straight graphite plugged bronze bushing is made of high-strength bronze alloy embedded with solid graphite as dry lubricant. Simple cylindrical structure for easy installation. It can operate under low-speed heavy-load working conditions without continuous oil supply. Widely used in injection molds, automation equipment, textile machinery, hydraulic parts and engineering machinery.

Tubular | Graphite Plugged

Tubular Self-lubricating Bronze Bushing Graphite Plugged Sliding Sleeve Bearing

Tubular Sleeve Sliding Bearing Graphite Plugged
T Tubular
260 Max Temp °C
190 N/mm² Static

This tubular self-lubricating bronze bushing features a cylindrical sleeve design without an integral flange, providing a simple and compact bearing solution for sliding sleeve applications. Graphite plugs are distributed along the cylindrical bore surface, delivering continuous maintenance-free lubrication. The tubular design allows for easy installation in applications where axial location is provided by other means or where the bushing needs to slide freely within the housing. The bronze substrate supports static loads up to 190 N/mm². Custom inner and outer diameters, length, and graphite patterns available to meet specific tubular sliding sleeve requirements.

Tubular Self-lubricating Bronze Bushing
Tubular Sleeve Design Simple cylindrical sleeve without flange. Compact design for applications where axial location is provided by other means.
Graphite Plugged Lubrication Graphite plugs distributed along the bore surface. Delivers maintenance-free lubrication for sliding sleeve applications.
High Load Capacity Bronze substrate supports static loads up to 190 N/mm². Suitable for heavy duty sliding sleeve applications.
Customizable Configuration Dimensions, length, graphite pattern, and bore tolerances adjustable to meet specific application requirements.
Core Advantages
  • Tubular design provides a simple, compact bearing solution with no flange
  • Graphite plugged design eliminates lubrication maintenance in production
  • Easy installation and removal in sliding sleeve applications
  • Bronze substrate offers corrosion resistance and high load capacity
  • Custom lengths and diameters available for non-standard applications
Product Characteristics
  • Material: CuSn8 bronze with high purity graphite plugs
  • Configuration: Tubular sleeve without flange
  • Graphite coverage: 20-25% on bore surface
  • Bore tolerance: ISO H8 at 20°C reference
  • Operating temperature: -40°C to 260°C continuous
Application Scenarios
Sliding sleeve guide systems Linear motion guide bushings Hydraulic cylinder pivot bearings Industrial automation slide bearings Press tool sliding guide bushings Heavy equipment linkage bearings Automotive suspension pivot bearings Custom sliding mechanism applications
Customization Available Tubular bushings can be customized for specific sliding sleeve applications. Options include custom bore and outer diameters, overall length, graphite plug density, and bore tolerances. Engineering consultation available for non-standard configurations.
ID: 6-120mm OD: 12-150mm Length: Custom
Frequently Asked Questions
What is the advantage of a tubular sleeve without flange
A tubular sleeve design provides a compact, simple bearing solution where axial location is provided by other means. It allows for easier installation in tight spaces and can be used in applications where flange clearance is limited.
How are graphite plugs distributed in a tubular bushing
Graphite plugs are distributed in a helical or grid pattern along the cylindrical bore surface. The number and spacing of plugs depend on the bushing diameter and length, ensuring uniform lubrication across the sliding surface.
How is axial location achieved with a tubular bushing
Axial location is typically provided by housing shoulders, retaining rings, or other components in the assembly. The tubular bushing itself does not provide axial retention without additional hardware.
What is the recommended installation method for tubular bushings
Press fit using a tool that contacts the bushing end uniformly. The housing bore should be within ISO H7 tolerance. Ensure the bushing is pressed to the correct depth for proper axial location.
How to determine when to replace a tubular bushing
Replace when bore diameter wear exceeds 0.06mm, when graphite on the bore surface falls below 12% of original coverage, or when the bushing shows signs of deformation or cracking.

Standard No. d d   h7 D Tolerance L L1 L2
JPBW
JPBF
25 25 +0.021
0
40 ±0.008 40 10 5
30 30 50 50 50
35 35 +0.025
0
60 ±0.0095 55 15
40 40 60 60 10
50 50 70 75 15 10
60 60 +0.030
0
80 ±0.011 90 20
80 80 100 120 25
100 100 +0.035
0
120 ±0.0125  150 25
120 120 140 180 25

Features  
- Oilless: Self - lubricating, no need for external lubrication, low - maintenance.
- Wear - resistant: Designed to withstand friction, long - lasting.
 
Applications
- Industrial Machinery: For manufacturing, construction, mining equipment to ensure stable operation.
- Automotive: Applicable in engines, transmissions, etc., to reduce friction and wear.

Zhejiang Shuangnuo Bearing Technology Co., Ltd.
Zhejiang Shuangnuo Bearing Technology Co., Ltd. is China Tubular Self-lubricating Bronze Bushing Graphite Plugged Sliding Sleeve Bearing JPBW, JPBF Suppliers and Wholesale Tubular Self-lubricating Bronze Bushing Graphite Plugged Sliding Sleeve Bearing JPBW, JPBF Company, we are a manufacturer specializing in producing various self-lubricating copper alloy products using centrifugal casting, continuous casting, metal mold casting, and other processes. Its main products include brass, aluminum bronze, tin bronze, and others produced according to national standard grades. It processes and produces various solid inlaid self-lubricating bearing products on this basis . At the same time, it uses sintering technology to produce bimetallic products and many other types of products. Since its establishment nearly 10 years ago, the company has focused on the research development, and production of various new self-lubricating bearings.

In the process of product production, our company has always insisted on independent casting production of raw materials to ensure the quality of products from the source; during the casting process, the whole process is monitored, and the finished product is tested by spectrometer three times before, in and after the furnace to confirm the material composition of the product. The national testing agency is regularly commissioned to test the material composition and mechanical properties of the product, and authoritative test reports can be provided to customers in need; the company implements integrated production from material to finished product processing and has more than 80 sets of advanced CNC machine tools, CNC lathes, machining centers, and other major equipment. The strong production capacity ensures that the material production is organized for customers for the first time, shortening the production cycle.
  • 0+
    Establishment

    Founded in 2014, Shuangnuo has 10 years of experience in the industry.

  • 0+
    Advanced Equipment

    Strong production capacity ensures that we can organize material production for customers as soon as possible and shorten the production cycle.

  • 0+
    Happy Clients

    There are more than 5,000 cooperative customers around the world.

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