Product Description
IKO Spherical Bushings are compact self-aligning spherical bushings with inner and outer rings in contact with the sphere, which can support a large radial load and a bi-directional axial load at the same time. There are many models of Spherical Bushings, but they are basically divided into steel-on-steel types and maintenance-free types according to the kind of sliding surfaces. Steel-on-steel Spherical Bushings have inner and outer rings of high-carbon chromium bearing steel, of which sliding surfaces are phosphate-treated and then dry-coated with molybdenum disulfide (MoS2). They can, therefore, operate with low torque, and have excellent wear resistance and large load capacity. They are especially suitable for applications where there are alternate loads and shock loads. They have wide applications mainly in industrial and construction machinery. Maintenance-free Spherical Bushings consist of an outer ring which has a special PTFE liner reinforced with copper alloy meshes on the sliding surface, and a spherical inner ring of which sliding surface has a hard chromium plating. Creep deformation due to compressive load is small, and wear resistance is superior. Thus, they are maintenance-free and can be used for extended periods of time without re-lubrication. They are especially suitable in cases where fixed directional loads are applied and are used mainly in food processing machines and construction machinery and in other applications in which the use of oil is undesirable or lubrication is not possible.
Superior Misalignment CapabilityThese spherical bushings can accommodate misalignment angles up to 2.5, ensuring smooth operation even under challenging installation or movement conditions. Their robust inner and outer ring construction with spherical contact allows for reliable motion transfer, making them ideal for applications exposed to dynamic loads and frequent directional changes.
Versatile Application RangeSuitable for use in automotive, construction, agricultural, and industrial machinery, these bushings excel where precision and durability are essential. Whether used in demanding equipment or general-purpose machinery, their adaptability to different environments is enhanced by their high load capacity, diverse material options, and compatibility with multiple conformance standards.
FAQs of Spherical Bushings:
Q: How should spherical bushings be installed for optimal performance?
A: These bushings are designed for press fit or housing fit mounting. Ensure that the housing or shaft tolerances meet manufacturer recommendations to maintain proper alignment and prevent premature wear. Proper installation tools and techniques are critical to avoid damaging the precision ground surfaces.
Q: What benefit does pre-lubrication offer in these bushings?
A: Pre-lubricated spherical bushings reduce the need for immediate maintenance and facilitate a smoother initial operation. This ensures effective load distribution and enables longer service life, especially in hard-to-access machinery or applications where regular lubrication is challenging.
Q: Where are spherical bushings typically used?
A: They are commonly found in automotive suspension systems, construction equipment pivot points, agricultural articulation joints, and various industrial machinery linkages. Their capability to accommodate misalignment makes them suitable wherever movement and durability are essential.
Q: What is the recommended operating temperature range for these spherical bushings?
A: The bushings are engineered to operate reliably in temperatures ranging from -20C to 120C. Operating them within this range ensures consistent performance and prevents lubrication breakdown or material deformation.
Q: What process is followed to ensure the surface finish and hardness of these bushings?
A: The bushings undergo precision grinding to achieve a high-quality surface finish, enhancing contact accuracy and service life. Heat treatment processes are then used to achieve a Rockwell hardness of HRC 58-62, delivering superior wear resistance under high load conditions.
Q: What types of seals are available with these bushings, and how do they enhance usage?
A: You can select between rubber seals, metal shields, or open designs. Rubber seals provide superior protection against contaminants and moisture, making them suitable for harsh environments. Metal shields offer moderate protection, while open designs allow for easy inspection and lubrication.