Feature: Pulley bearings
NSK bearings and training help woodworking machine builder make savings A
fter suffering repeated failures of its table guide rollers, an international woodworking machine manufacturer called upon the expertise of NSK and its AIP Added Value Programme to resolve the issue. The decision proved lucrative, with NSK
A proposal was made to adopt NSK pulley
the ingress of dirt and other types of con-
bearings, predominantly because of their
tamination. These bearings also serve to
higher tolerance levels. In tandem with a
reduce wear on the raceways and ball
suitable NSK training course that allowed
surface, cut noise levels, and reduce vi-
consistent table guide assembly, it was
bration and the danger of lubricant fail-
calculated that the problem would be re-
ure. A further advantage of NSK pulley
solved. Sure enough, these actions ena-
bearings, which accommodate radial and
bled the fault-free running of the machine
axial forces in both directions, is their po-
and reduced fitting times for the bearings.
tential to be re-greased through the inner
helping the company to save a total of
ring.
€13,333 per annum in reduced labour
Pulley bearings from NSK correspond in
and assembly costs.
design to a sealed double-row angular
At the woodworking machine manufac-
contact bearing. Based on their function
turer, NSK pulley bearings were subject-
Upon arriving at the customer’s facility,
as pulley bearings, the outer ring – which
ed to an initial trial, which demonstrated
NSK set about investigating the problem
can be cylindrical or crowned – is rein-
their performance, without any failures. In
with the table guides, discovering that
forced.
tandem with employee training in bearing
the existing bearings had insufficient tol-
installation and removal, it was possible
erance. This issue, in combination with
Importantly, in harsh operating conditions
to reduce assembly costs and staff de-
inconsistent bearing assembly methods,
(such as those found in woodworking
ployment.
was resulting in frequent failures.
shops), NSK pulley bearings feature contact seals that provide protection against
34 dpaonthenet.net
www.nsk.com
