Lutco's heat treating processes include carburizing and carbonitriding. Inner and outer race surface hardness specification is Rc 59–63.

What is a ball bearing used forinacar

Recommended for light seal drag applications, grease retention, and minimal environmental protection. Nylon shield on flange side only.

Ball bearingdiagram

LUTCO is the leader in sealed, full complement, unground bearings, servicing the needs of a wide range of industries. LUTCO provides various sealing and shielding options to meet challenging environmental demands. Seal/Shield designations are listed in the suffix of LUTCO bearing designs. See below for common options or call the factory for special applications.

How doballbearings work

ball bearing, one of the two members of the class of rolling, or so-called antifriction, bearings (the other member of the class is the roller bearing). The function of a ball bearing is to connect two machine members that move relative to one another in such a manner that the frictional resistance to motion is minimal. In many applications one of the members is a rotating shaft and the other a fixed housing.

There are three main parts in a ball bearing: two grooved, ringlike races, or tracks, and a number of hardened steel balls. The races are of the same width but different diameters; the smaller one, fitting inside the larger one and having a groove on its outside surface, is attached on its inside surface to one of the machine members. The larger race has a groove on its inside surface and is attached on its outside surface to the other machine member. The balls fill the space between the two races and roll with negligible friction in the grooves. The balls are loosely restrained and separated by means of a retainer or cage.

Recommended where severe conditions require superior sealing. Seal construction includes a two piece BUNA N rubber with a NYLON GS backing.

All Lutco ball bearings will sustain a thrust load of 50% of the rated radial load. (the combined radial and thrust load should not exceed the indicated radial load.) It is suggested that if there is a question regarding the Lutco bearing capacity for a specific application, please call (508) 756-6296.

What is a ball bearing used forin everyday life

Lutco unground radial ball bearings are designed for applications where speeds and loads are moderate and where noise level requirements and running accuracy do not justify using more expensive precision ground bearings. Since the raceways are unground but highly polished, radial bearings are designed for applications with speeds not exceeding 1200 rpm.

Use ofballbearings to reduce friction

Load ratings printed in the design guide are based on ninety percent of the group surviving for 500 hours. Environment, shock loading, sealing, temperature, lubrication, heat, configuration of ball tracks and speeds under load, all directly influence bearing life. Printed ratings are to be used only as a guide in the design for a given application. Field testing is advised in order to assure the suitability of a bearing for a particular application. We do not recommend accelerated testing, as it may not be representative of actual field conditions.

Lutco radial bearings consist of a full complement of precision steel balls, a machined inner race and a pair of cold formed outer races captured by a soft steel jacket. this design allows for retained seals, and extra deep raceways. the jacket on the OD allows for the bearing to be pressed into a housing made without close tolerances.

What is a ball bearing used forin real life

Recommended where severe conditions require superior sealing on flange side. Seal construction includes a two piece BUNA N rubber with a NYLON GS backing.

Ball bearingexamples

The standard construction provides two 1⁄4"–28 cup point socket set screws spaced 120° apart. For severe applications, special lock patch, serrated point, or other set screw designs are available. Recommended set screw torque is 60 in-lbs.

A full complement of balls offers more contact between the balls and races. this results in more resistance to brinelling from shock loads. carbon balls are standard. Alternate ball materials are available upon request. the grades of balls used range from 200 to 1000 depending on the specific application.

The most common ball bearing, with one row of balls, is usually classified as a radial ball bearing (i.e., one designed to carry loads perpendicular to the axis of rotation), but its capacity for carrying an axial, or thrust, load (i.e., a load parallel to the axis of rotation) may exceed its radial capacity. The angular-contact bearing has one side of the outer-race groove cut away to allow the insertion of more balls, which enables the bearing to carry large axial loads in one direction only. Such bearings are usually used in pairs so that high axial loads can be carried in both directions. The clearances in a single-row ball bearing are so small that no appreciable misalignment of a shaft relative to a housing can be accommodated. One type of self-aligning bearing has two rows of balls and a spherical inner surface on the outer race. For pure thrust loads there are ball thrust bearings that consist of two grooved plates with balls between. The outstanding advantage of a ball bearing over a sliding bearing is its low starting friction. At speeds high enough to develop a load-carrying oil film, however, the friction in a sliding bearing may be less than in a ball bearing.

Radial bearings consist of a full complement of precision steel balls, a machined inner race and a pair of cold formed outer races captured by a soft steel band providing a fully unitized assembly. The soft steel band on the OD allows for the bearing to be pressed into a housing made without close housing tolerances. The axial load rating is 50% of the radial load rating.

The Lutco Design Guide has detailed information including product specifications, technical drawings & measurements, load rating and testing data, interchange tables, conversion tables, unique applications, and more.