The Bronze Oilless SPW Thrust Washer is a high-performance engineering component that offers a reliable and efficient solution for thrust applications in various machinery. As an equivalent to traditional oil-lubricated thrust washers, it eliminates the need for regular lubrication, reducing maintenance costs and downtime.
Constructed from high-quality bronze material, the thrust washer exhibits excellent wear resistance and durability. Its oil-free design ensures smooth and reliable operation, even under high loads and extreme conditions. This feature makes it suitable for use in a wide range of engineering machinery, including construction equipment, mining machinery, and industrial production lines.
The Bronze Oilless SPW Thrust Washer is precision-manufactured to ensure accurate fit and optimal performance. It can be easily integrated into existing machinery or used as a replacement part for worn-out or damaged thrust washers. Its compact design and durability contribute to the overall efficiency and reliability of the engineering machinery.
Wh you're looking to upgrade your existing equipment or seeking a cost-effective solution for thrust applications, the Bronze Oilless SPW Thrust Washer is an excellent choice. Its equivalent performance to oil-lubricated washers, combined with the convenience of oil-free operation, makes it a valuable addition to your engineering machinery. Contact us today to learn more about this innovative component and how it can enhance the performance of your machinery.

Bronze Oilless Bush SPW Thrust Washer Equivalent

Solid Lubricant Inlaid Thrust Washer, Bronze Bushing 500SP1-SL1 Thrust Washer SPW Size, Oilless Bronze bushing with graphite

Oilless Bushings Equivalent SOB bronze bearings, SPF Flange Bushings

Bronze with lubricating pins - maintenance-free.Get Best Deals For Sleeve Bronze Bushings graphite bronze bearings Recommendations For You

Specifications Dimensions

Characteristics

– Suitable for high loads
– Multiple areas of us (universal bearing)
– Long life
– Wide temperature range

Areas of use

Forest machinery, pump housing parts, cylinder bearings, shipping & container industry etc.
Shapes & forms
Cylindrical bearings, flange bearing

Bronze Bushing Technology
Type	JDB-1	JDB-2	JDB-3	JDB-4	JDB-5
Base material	CuZn24Al6	CuSn6Zn6Pb3	CuSn6Zn6Pb3	HT-250	CuCr15
Base Hardness	Hb230	HB 90	HB 80	HB 210	HB 60
	(Hb270)
Friction coef(u)	<0.16	<0.15s	<0.14	<0.17	<0.17
Temperature limit	300℃	350℃	300℃	400℃	350℃
Dynamic Load Limit	100 N/mm2	60 N/mm2	70 N/mm2	60 N/mm2	250 N/mm2
Load LImit Under 1m/min	25 N/mm2	15 N/mm2	20 N/mm2	15 N/mm2	70 N/mm2
Speed limit	0.40 m/s 5 m/s	2 m/s	2 m/s	0.5 m/s	0.1 m/s
PV Limt	3.8 N/mm2·m/s	0.5 N/mm2·m/s	0.6 N/mm2·m/s	0.8 N/mm2·m/s	2.5 N/mm2·m/s
bronze bushingWear Performance
Load Applied		62N/mm2		24.5N/mm2		14.7N/mm2
Item		Wear Depth	Time	Wear Depth	Time	Wear Depth	Time
Type	Lubrication	(mm)	(hrs)	(mm)	(hrs)	(mm)	(hrs)
CuSn6Zn6Sn3	Oil	0.098	10	0.125	100	0.1	100
JDB-1	dry friction	0.075	100	0.015	100	0.012	100
JDB-2	dry friction	0.025	30	0.065	100	0.025	100
JDB-3	dry friction	0.03	30	0.12	100	0.015	100
JDB-4	dry friction	0.03	10	0.25	20	0.011	100
JDB-5	dry friction	0.022	100	.0.13	100	0.01	100

Beyond Grease: A Deep Dive into Oilless Bushings & Why Viiplus Leads the Way

Friction is the enemy of efficiency. In countless machines, from massive industrial equipment to intricate automotive components, the constant battle against wear and tear dictates performance, longevity, and maintenance costs. Traditionally, grease and oil have been the go-to solutions, but they come with their own set of challenges: frequent re-lubrication, potential contamination, environmental concerns, and limitations in extreme conditions.

Enter the world of oilless bushings, also known as self-lubricating bearings or sliding bearings. These innovative components offer a smarter way to manage friction, delivering reliable movement without the need for external lubrication.

At Viiplus (www.viiplus.com), we don't just supply these components; we engineer solutions. Leveraging deep expertise in metallurgy and tribology (the science of friction, wear, and lubrication), we've become a leading name in sliding bearing technology. But what exactly are oilless bushings, and why should they be on your radar? Let's dive deeper.

What Exactly Are Oilless Bushings? The Science of Self-Lubrication

Unlike traditional ball or roller bearings that rely on rolling elements and require constant lubrication films, oilless bushings operate on the principle of sliding motion. Their "magic" lies in their material composition and structure, designed to provide their own lubrication at the bearing surface. This can be achieved through several key technologies:

1. Solid Lubricants Embedded: Materials like graphite, MoS₂, or PTFE are embedded directly into the metallic matrix (often bronze) of the bushing. As the shaft rotates or slides, a minuscule amount of this solid lubricant is transferred to the mating surface, creating a low-friction film.

2. Porous Metal Structures: Sintered bronze or iron materials are created with microscopic pores. These pores are vacuum-impregnated with oil during manufacturing. In operation, slight heating causes the oil to expand and seep onto the bearing surface, providing lubrication. When it cools, the capillary action draws the oil back in, creating a closed-loop system.

3. Layered Composites: These often feature a strong backing (like steel), an intermediate sintered layer (like bronze), and a low-friction overlay (often PTFE-based). The PTFE layer provides the primary sliding surface, offering extremely low friction.

4.  

Contrasting Logic: Oilless vs. Traditionally Lubricated Bearings

The Tangible Benefits: Why Make the Switch?

Choosing oilless bushings isn't just about eliminating grease guns. It's about unlocking significant operational advantages:

• Drastically Reduced Maintenance: This is the most obvious benefit. No re-greasing means less labor, less scheduled downtime, and simplified maintenance protocols. Imagine the savings across a factory floor!

• Enhanced Reliability: Lubricant starvation is a major cause of bearing failure. Self-lubricating bearings ensure consistent lubrication, leading to predictable performance and longer service life, especially in hard-to-reach locations.

• Superior Performance in Harsh Conditions: Oilless bushings excel where traditional lubricants fail:

  • High Temperatures: Certain types can operate at temperatures far exceeding the limits of conventional greases.

  • Low Temperatures: No grease means no stiffening or freezing issues.

  • Contaminated Environments: The absence of sticky grease reduces the ingress of dirt, dust, and debris.

  • Vacuum or Underwater: Ideal for applications where liquid lubricants are impractical or impossible.

  •  
  •  
  •  
  •  
  •  
  •  
  •  

• Cost Savings (Total Cost of Ownership): While the initial purchase price might sometimes be higher, the TCO is often significantly lower due to savings on lubricants, labor, downtime, and potential component failure replacement.

• Environmental Friendliness: Eliminating oil and grease leakage prevents contamination of products, machinery, and the environment. Crucial for industries like food processing, pharmaceuticals, and textiles.

• Compact & Simplified Designs: Without the need for lubrication systems (nipples, lines, reservoirs), machine designs can be more compact and streamlined.

•  

Exploring Viiplus's Portfolio: Finding Your Solution

Viiplus offers a comprehensive range of self-lubricating bearings designed to meet diverse application needs. Understanding the different series helps in selection:

• JDB Series (Graphite Plugged Bronze): Excellent for high-load, low-speed applications, intermittent motion, and high temperatures. The graphite plugs provide continuous solid lubrication. Ideal for heavy machinery, molds, and hydraulic components.

• SF Series (PTFE-Based Composite): Typically metal-backed (SF-1: steel, SF-2: steel/bronze) with a PTFE-based lining. Offers very low friction, good wear resistance, and suitability for dry running or marginal lubrication. Common in automotive, office equipment, and hydraulics.

• JF Series (Bimetal Bushings): Combines a steel backing with a sintered bronze or lead-bronze lining. Good load capacity and fatigue strength. Often used with grease or oil but can operate marginally lubricated. Found in engines, chassis parts, and agricultural machinery.

• FB Series (Wrapped Bronze): Often made from bronze strip, sometimes with lubrication pockets or through-holes. A cost-effective solution for medium loads and speeds, typically requiring initial greasing but offering extended re-lubrication intervals.

•  

Quick Comparison Chart (General Guide):

(Note: This is a simplified guide. Always consult specific product data sheets or Viiplus experts for precise application requirements.)

Uncertain which material or type suits your project? Our Bushing Material Selection Guide is designed to help, or Contact Us for a Free Quote and Expert Advice.

Why Partner with Viiplus? Expertise Meets Quality

Choosing the right supplier is as critical as choosing the right bushing. Here’s why companies worldwide trust Viiplus:

• Deep Expertise: Our foundation in metallurgy and tribology, coupled with a talented R&D team, means we understand the science behind reliable movement. We don't just sell; we solve friction challenges.

• Uncompromising Quality: We employ advanced manufacturing techniques (including sand casting, centrifugal casting, metal casting, investment casting) and a rigorous quality management system, ensuring every bushing meets the highest standards.

• Comprehensive Range: From standard metric sizes in JDB, SF, JF, and FB series to custom solutions including cylindrical, flange, double flange bushings, wear plates, and guide rails – we have the portfolio to match your needs.

• Global Reach, Seamless Logistics: Based in China, we ship sliding bearings worldwide. Our professional team handles customs clearance efficiently, ensuring smooth, timely delivery with all necessary documentation.

• Customer-Centric Approach: We believe in ethical practices and building trust. We offer flexible production (single units to large series), competitive pricing, and  online support.

•