Spherical Roller Bearings Market: Introduction
The spherical roller bearings were invented by Arvid
Palmgren and introduced in the world market by SKF in 1919. Spherical
roller bearings market fall under the category of roller
bearings that use rolling components such as rollers or balls to carry load.
The spherical roller bearing allows low friction possibilities along with
angular misalignment, while carrying out the task as a roller bearing. The
rolling components in spherical bearings are not actually spherical but have a
cylindrical profile with slightly inflated look. The spherical roller bearing
assembly comprises of a ring on the inner side along with two races which is
inclined to the bearing axis at an angle and a ring on the outer side with a
common race, spherical cages, rollers and internal guide ring also referred to
as central ring. There are varying designs of the spherical bearings, one
variation is they have two rows of rollers and another variation is they have
one roller row. The two row roller design is used in applications where higher
loads are involved, whereas one row roller design is typically used in
applications where medium to less loads are involved. The ISO standardisation
has not been applied to the inner design of these bearings and hence they
differ from manufacturer to manufacturer. The material used for spherical
bearing rings and rolling components can be prepared from various material, but
the most common used material is chrome steel. The spherical roller bearings
are used in wind turbines, gear boxes, casting machines, pumps, material handling
systems, mechanical blowers and fans, pulp and paper manufacturing and refining
equipment, mining equipment, marine propulsion, construction equipment and
offshore drilling. There have been several developments in the spherical
bearings. These developments were carried out by altering couple of parameters
such as internal geometry, materials used, lubricants and tolerance. In this
day and age, the manufacturers of spherical roller bearings are pushing the
knowledge of bearings towards more energy efficient and environmental friendly
aspect.
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Spherical Roller Bearings Market: Growth Drivers
The spherical roller bearings market growth is impacted by
various factors pertaining to the features of these bearings, the technological
advancements and adoption in various applications. The spherical roller
bearings have advantages such as low friction while starting as well as during
running, they have ability to withstand shock loads, they have various designs
based on the applications they are going to be used in and the loads they are
going to withstand, the shaft alignment is accurate which further improves the
work efficiency, less maintenance costs, internal lubrication available
avoiding costs incurred for external lubricating sources, service reliability,
durability and ease in mounting and erecting. Moreover, the advancements in
technology and vast scope for up gradation is a major factor for the adoption
of the spherical bearings. The growing international market and other
diversification opportunities have made it possible for the spherical bearings
to reach almost each industry vertical, especially in the automotive and the
aerospace sector, thereby contributing to the growth of the spherical roller
bearings market.
Spherical Roller Bearings Market: Growth Restraints
The growth restraining factors are associated with the
limitations faced by the spherical roller bearings which involve noise
generation at higher speeds, higher initial cost, the design of the housing of
the bearing can become complicated based on the applications it is used for,
rising steel prices, poor demand in the infrastructure sector and increasing
manifestation of imitation products are affecting the growth of the spherical
roller bearing market.
Spherical Roller Bearings Market: Key Companies
The key companies in the spherical roller bearing market
include Schaffler, SKF, Timken Company, JTEKT, NSK Ltd. and NTN
Corporation. Other players are Aurora Bearing, AST Bearings LLC, FYH Bearing,
Baltic Bearing Company and Precision Bearings Pvt. Ltd.
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