
RG7 Tin Bronze Bushing – C93200 Bearing Bronze
C93200 Tin Bronze Bushing has excellent machining properties, good hardness, as well as strength and wear resistance with excellent antifriction qualities.
The World’s Trusted Partner In RG7 Tin Bronze Bushing Solutions
RG7 tin bronze, also known as CuSn7Zn4Pb7, is considered the “standard” bearing material of lead-tin bronze, is a widely used alloy with approximately 7% tin, 4% zinc, and 7% lead content. The addition of lead and zinc enhances the alloy’s machinability and wear resistance, making it ideal for bearing applications. material: 2.1090 CuSn7Zn4Pb7,2.1096 material.
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Tin Bronze Bushing for Hydraulic Cylinders: A Durable Solution for Smooth Operations
Hydraulic cylinders are essential components in various mechanical systems, efficiently converting hydraulic energy into mechanical force through linear or oscillating motion. With their simple yet reliable design, they find widespread use in hydraulic systems across industries. The inner lining of the cylinder, known as the bushing, plays a critical role in protecting the cylinder and reducing friction between the cylinder and the piston. Moreover, the use of bushings simplifies the cylinder’s construction and manufacturing process, allowing for easy maintenance by simply replacing worn-out bushings instead of the entire cylinder.
Tin Bronze: An Ideal Alloy for Hydraulic Cylinder Bushings
Hydraulic cylinders are prone to failures caused by worn-out seals, cylinder barrel erosion, internal surface scratches, corrosion, and piston or piston rod damage. The sealing performance of the hydraulic cylinder significantly affects the equipment’s overall performance. Therefore, the material choice for the cylinder bushing must meet essential criteria, such as wear resistance and corrosion resistance, making tin bronze a suitable candidate.
Tin bronze, an alloy with high mechanical strength, anti-wear properties, and corrosion resistance, offers excellent machinability and performs well in brazing and welding processes. Its low coefficient of thermal expansion and non-magnetic properties make it an attractive choice for hydraulic cylinder applications. The combination of high strength and excellent castability further enhances its suitability for use as a copper bushing in hydraulic cylinders.
Role and Benefits of Tin Bronze Bushings in Hydraulic Cylinders:
Protecting the Cylinder Barrel and Reducing Wear:
The primary purpose of using a tin bronze bushing is to safeguard the cylinder barrel from direct wear and damage. The bushing acts as a sacrificial layer, absorbing friction and preventing it from affecting the critical components of the hydraulic cylinder. This protective feature significantly extends the lifespan of the cylinder and reduces maintenance requirements.
Simplifying Cylinder Structure and Manufacturing:
Incorporating tin bronze bushings simplifies the design and manufacturing process of hydraulic cylinders. The bushing can be readily inserted into the cylinder barrel, streamlining production and assembly. Moreover, this approach reduces the complexity of the cylinder’s construction, leading to cost-effective manufacturing and increased productivity.
Facilitating Easy Maintenance:
Hydraulic cylinders are subject to wear and tear over time, and regular maintenance becomes necessary. By using tin bronze bushings, maintenance becomes more convenient and cost-effective. When the bushing wears out, it can be easily replaced without the need to replace the entire cylinder. This not only reduces downtime but also saves on replacement costs.
Tin bronze bushings have proven to be a reliable and durable solution for hydraulic cylinders. Their high mechanical performance, anti-wear properties, corrosion resistance, and ease of manufacturing and maintenance make them an excellent choice for protecting cylinder barrels and ensuring smooth and efficient operations in hydraulic systems. The use of tin bronze bushings in hydraulic cylinders continues to contribute to the reliability and longevity of various machinery across industries.
Bronzeoilless.com utilizes tin bronze 5-5-5, a type of bronze alloy, for casting copper bushings in hydraulic cylinders. Tin bronze 5-5-5 offers excellent wear resistance and corrosion resistance, making it ideal for use in parts that operate under higher loads and medium sliding speeds. This alloy is known for its ease of processing, good casting properties, and excellent air tightness.
With our extensive experience and matured technology, we have established a strong reputation for product quality and company credibility, expanding our reach nationwide and forging long-term partnerships with clients across the country.

Manufacturing Processes For Tin Bronze Bushings
- Casting: Casting is a common method used in the production of tin bronze bushings. Molten metal is poured into a mold and allowed to solidify, taking on the desired shape of the bushing. This process allows for the creation of complex shapes and sizes, making it suitable for a wide range of applications.
- Powder metallurgy: Powder metallurgy is another technique utilized for manufacturing tin bronze bushings. In this process, metal powders are combined, compacted, and sintered to form a solid part. This method offers high precision, dimensional accuracy, and excellent material properties.
Applications of Tin Bronze Bushings
- Automotive industry: The automotive industry makes extensive use of tin bronze bushings. They can be found in various components such as engines, transmissions, and suspension systems, where their strength, wear resistance, and corrosion resistance are crucial.
- Heavy machinery: Heavy machinery often incorporates tin bronze bushings for their durability and wear resistance. These bushings are used in components such as gears, bearings, and hydraulic systems to ensure smooth operation and long service life.
- Marine applications: The marine industry also benefits from the corrosion-resistant properties of tin bronze bushings. They are commonly used in propeller shafts, rudder assemblies, and other underwater equipment to prevent corrosion and ensure reliable performance.

Creating Bronze Bushing Solutions For You
Find The Right Self Lubricating Bronze Bushing Solution For Your Requirements.

CC493K/RG7/CuSn7Zn4Pb7/
C93200 Bronze Bearing
C93200 (SAE660 RG7) This tin bronze bushing has excellent machinability, good hardness, strength and wear resistance, and excellent anti-wear properties. Typical applications include bearings, gaskets, bushings, automotive parts, spindle bearings, machine tool bearings, crane bearings, trunnion bearings, roller neck bearings, mill bearings, fuel pump bushings, pump bushings, diesel engine piston pin bushings, forged elbow joint rod bearings, stuffing box hydraulic presses, hydraulic press mainliners, pump impellers, general purpose bushings, tubing, pump units, outer spherical bearings, and more. We can offer different sizes and alloys on your tin bronze bearing request.
Excellent All-round Capabilities RG7 Bronze Bearing
Easy To Machine
Offering good dry running characteristics and pressure-tightness, RG7 tin bronze bushing is easy to machine and finds use in the production of slide bearings and bearing bushings. It provides adequate corrosion resistance, including saltwater environments. RG7 is soft solderable (hard solderability is possible but limited). Commercial applications for this engineering material include:
Slide bearings, sliding partsBearing bushesValve and pump housingsSteam fittingsStandard bearings
We stock RG7 (G-CuSn7ZnPb) tin bronze bushing in thrust washer, wear plate, straight and flange type.


SAE660 Tin Bronze Bearing With Graphite
Graphite tin bronze bushing is a kind of novel lubrication bearing that has both the characteristics of metal bearing and self-lubricating bearing, by 93200( rg7 ) tin bronze to bear the load, the special formula of solid lubricating graphite material plays the role of lubrication. C93200 bearing bronze has a high bearing capacity, impact resistance, high-temperature resistance, self-lubricating ability, etc. It is suitable for heavy load, low speed, reciprocating or oscillating, and difficult to lubricate and form oil film, and is not afraid of water and other acid corrosion and scouring.
Leaded Tin Bronze Bushing
Alloy | Other | Tensile | Yield | Elongation | Brinell @ 500 KG |
C93200 | SAE 660 | 35,000 | 20,000 | 10 | 65 |
C93600 | Modified 64 | 32,000 | 16,000 | 15,000 | 60 |
C93700 | SAE 64 | 35,000 | 20,000 | 6 | 60 |
CuSn7Zn4Pb7-C (CC493K) | CuSn7ZnPb Tin Bronze Bushing Material
EN | DIN | ||||
Alloy | CuSn7Zn4Pb7-C | CuSn7ZnPb | |||
RG7 | |||||
Standard | EN 1982 | DIN 1705 | |||
Alloy number | CC493K | 2.1090 | |||
Chemical composition | Mechanical properties | ||||
Cu | 81,0 – 85,0 | 81,0 – 85,0 | EN | DIN | |
Sn | 5,4 – 8,0 | 5,6 – 8,0 | Rm | ≥ 260 | ≥ 270 |
Zn | 2,0 – 5,0 | 3,0 – 5,0 | Rp 0,2 | ≥ 120 | ≥ 120 |
Pb | 5,0 – 8,0 | 5,0 – 7,0 | A5 | ≥ 12 | ≥ 16 |
Ni | 2,0 max. | 2,0 max. | HB | ≥ 70 | ≥ 70 |
P | 0,10 max. | 0,05 max. | |||
kg/dm³ | 8,9 | ||||
Condition | GC, GZ | GC | |||
Characteristics | Most common bronze alloy, also called bearing bronze or gunmetal. Suitable for bearings with medium load, good dry running properties, high wear resistance and machinability. General applications: cylinder and bearing liners, gears and wearstrips. Loads up to 4000 N/cm² |

Automotive Bearing – C93200 Bearing Bronze
C93200 automotive bearing on the car are mainly installed in the chassis part because there are various suspensions and control arms under the chassis, and these parts are connected through the pivot, to reduce the mutual wear and tear between the parts, so the middle of the suspension system of the car is connected by a large number of bronze bushings.
Shock Absorption Function Bearing
In addition to reducing wear and tear, easy to replace, the biggest role of the car C93200 bearing bronze is also has a certain shock absorption function. Generally, the upper and lower control arms of the car shock absorber will be connected with bushings, when the vehicle through the bumpy road will produce high-frequency vibration, in addition to shock absorbers and tires can absorb vibration, a variety of suspension bushings can also absorb part of the vibration, to avoid as far as possible to transfer vibration into the cockpit, improve the comfort performance of the vehicle.
Choose The Right Material For Your Machine Parts
We offer a wide range of copper-based bearings. These are mainly bronze alloys covered by global Standards – a full range of bronze alloys including Tin bronze bushing, Leaded bronze bearing, Aluminium Bronze bushing, Brass alloy bushing, and special alloy bearing.
Processing Of Bronze Bearing
Complete tin bronze bushing solutions. We carry out high precision, medium, and small series orders in a wide range of dimensions.

Turning

Milling

Drilling

Cutting

Grinding

Finished
Discover The Power Of Tin Bronze Bushings And Transform Your Machines
Provide easy bronze bushings for your machine with bronzeoilless.com.