Density and specific heat of bearing steel. Physical and mechanical properties.
Are you interested in the physical and mechanical properties of bearing steels from the supplier company AvecGlob? Here you will find interesting information on this topic.
When the bearing surfaces are separated by a liquid film, the bearing materials have no effect on its operation, since the parts have sufficient strength to withstand the imposed loads and sufficient rigidity to maintain alignment. But for the total durability of the assembly, bearing steels must meet certain operational requirements.
Features
Low coefficient of friction:
The combination of bearing materials with the sliding surface together with the lubricant should provide a small coefficient of friction to reduce damage and reduce operating costs.
High compressive strength:
The bearing material must have a high compressive strength to prevent the material from being squeezed out of the bearing. Since the maximum bearing pressure can be significantly greater than the pressure that can occur in localized bearing areas until the gap substantially changes.
High fatigue strength:
In severe loading and temperature conditions, cracks in surface fatigue may occur. These cracks can cause inspection and pitting of the surface, which leads to its deterioration to the extent that the work of the bearing affects. Thus, it is desirable to use a bearing material with high fatigue strength.
For severe operating conditions, a very thin metal bearing was associated with the steel back to prevent the spread of fatigue cracks. This combination also prevents extrusion of the bearing material due to the restraining effect of the rigid substrate.
Supplier — AvekGlob company — offers at a reasonable price from the manufacturer a diverse range of bearing steels that meet the technical requirements of the relevant domestic and foreign standards. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Properties (continued)
Low thermal expansion:
The bearing size should remain almost constant during periods of temperature change.
High thermal conductivity:
The ability of the bearing material to quickly dissipate heat due to friction.
Plastic:
The bearing material must be sufficiently plastic so that the bearing can return to its original shape when stress is removed, which can cause temporary distortion, such as displacement and overload.
Elasticity:
Due to small inaccuracies in the form of the journal and its deflection under the imposed loads, the bearing material must adapt its shape to the form of the contacting part. This change in shape can be achieved through plastic flow, wear or local melting.
Resistance to corrosion:
Bearing materials have different degrees of resistance to corrosion; this should be taken into account when using aggressive oils.
Relative hardness of the bearing material:
The bearing material should usually be softer than the material to prevent wear of the shaft, but strong enough to withstand the adhesive and abrasive wear of its own surface.
Supplier — AvekGlob Company — offers to purchase various grades of bearing steels that comply with the technical standards and requirements of GOST, DIN EN or ASTM. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.