An apparatus for providing a load on a bearing mounted to a shaft includes an attaching member releasably connectable to the shaft. A press mechanism is coupled to the attaching member and is configured to provide a compressive load to the bearing. An optical sending unit is configured to output a high intensity light to allow a user to locate a shaft slot of the shaft to align the press mechanism relative to the shaft when the attaching member connects to the shaft.

A bearing includes a plurality of rolling elements (26) spaced around a three-hundred and sixty degree circumferential extent of the bearing. An odd, non-singular number of high-points are positioned as near to evenly as possible about the circumferential extent of the bearing, the high-points defined by locations at which rolling elements with the largest diameters are positioned. An odd, non-singular number of low-points are positioned as near to evenly as possible about the circumferential extent of the bearing, the low-points defined by locations at which rolling elements having the smallest diameters are positioned. The odd, non-singular number of high-points is the same as the odd, non-singular number of low-points, and each low-point is positioned as near to evenly as possible between two adjacent high-points.

A device and a method is disclosed to maintain plate and anilox mandrel position stability in print decks of a flexographic printing press. In one aspect, the mandrel bearings associated with at least one of the plate roll and the anilox roll are preloaded for the purpose of eliminating backlash and increasing the positional stiffness of the bearings, and thus the mandrel. In another aspect, the roll drive motor control system is enabled to provide a torque additive command the torque profile to maintain rotational consistency and otherwise overcome torque transients experienced by the motor during print bounce. Accordingly, the problem commonly referred to as print bounce and or print banding is alleviated.

A method for spin set bearing setting verification in a preload state on a shaft. An inertia wheel may be disposed on the shaft. The inertia wheel or the shaft is rotated. A first rotational speed is measured at a first time. The inertia wheel may decelerate over time to achieve a second rotational speed measured at a second time. The second speed is less than first speed. The change in time between the first time and the second time is measured. The bearing setting may be adjusted if the change in time is outside a predetermined time range. The bearing setting may remain unchanged if the change in time is within a predetermined time range.

Proposed is a novel coupling mechanism capable of applying a preload to a ball portion and a socket portion which constitute a coupling mechanism of a titling pad bearing, without using a spring element.

The present disclosure relates to a reduced friction torsion component system that makes use of a first frame portion adapted to be coupled to, or integrally formed with, a first object, and forming a first bore, and a second frame portion adapted to be coupled to, or integrally formed with, a second object, and forming a second bore. The two bores are axially aligned and receive at least one elongated hinge component. The elongated hinge component operates to both couple the first and second frame portions together for pivoting movement relative to one another, and also provides a torsional biasing force to enable pivotal deployment from a first position to a second position of one of the first or second frame portions.

A flywheel system comprises a flywheel rotor comprising a rotor disc and a rotor shaft and has a longitudinal axis extending centrally through the rotor disc and the rotor shaft. The system further comprises a journal assembly configured to facilitate rotation of the flywheel rotor. The journal assembly comprises a sleeve having an aperture extending therethrough from a first end to a second, opposite end, a rod at least partially disposed within the aperture of the sleeve, and a nut coupled to a portion of the rod. The rod has a length greater than the sleeve such that a portion of the rod extends axially beyond the first end of the sleeve. A method of forming the flywheel comprises coupling the rod to the rotor shaft and pulling the second end of the rod to tension the rod. The nut maintains the tension in the rod when coupled thereto.

A bearing assembly includes first and second raceways and balls between the raceways, and is conceptually divided into four quadrants by a ball rotational axis and an axis perpendicular to the ball rotational axis. The second raceway includes a first portion lying in the first quadrant and a second portion lying in the second quadrant, and the first raceway includes a first portion lying in the third quadrant and a second portion lying in the fourth quadrant. Each of the balls has a raceway contact point in each of the quadrants, and a center of curvature of each of the portion of the raceway in each quadrant is located in an opposite quadrant. The contact points are offset from the axis perpendicular to the ball axis of rotation and are arranged in a range of ±10°, around the axis perpendicular to the ball axis of rotation.

A rolling bearing holder unit disclosed herein includes: a rolling bearing with a predetermined rotation axis, the rolling bearing including: an outer ring; an inner ring placed inward relative to an inner circumferential surface of the outer ring to be coaxial with the outer ring; and a plurality of rolling bodies placed between the outer ring and the inner ring; a bearing holder placed in contact with an outer circumferential surface of the outer ring or an inner circumferential surface of the inner ring in the rolling bearing; and a strain gauge with a resistor that is configured to detect a strain of the outer ring or the inner ring. In this rolling bearing holder unit: the bearing holder has a thick part and a thin part that is thinner than the thick part; the strain gauge is placed on the thin part; the rolling bearing is preloaded to form a predetermined contact angle; and the thick part is placed in contact at least with a region extending from an intersection of a straight line indicating the predetermined contact angle and the outer circumferential surface of the outer ring or the inner circumferential surface of the inner ring, to a preloaded end surface, the preloaded end surface being an end surface of the outer ring or the inner ring located nearer to the intersection.

A method for preloading a bearing includes releasably, threadably, and directly attaching an attaching member to a circumferential outside surface of an exposed end of a threaded shaft of an axle or spindle. A frame is axially separated from, and coupled to, the attaching member. A plurality of extensions extends from the frame axially past the attaching member toward the wheel hub assembly. An adjustment mechanism moves the frame and the plurality of extensions axially towards the wheel hub assembly to contact the wheel hub assembly and/or the bearing to apply a preload to the bearing within the wheel hub assembly.