Information about Super Precision and Spindle Bearings

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About Super Precision and Spindle Bearings

Super precision and spindle bearings are high-precision bearings that are designed for use in machine-tool spindles and other precision applications. Most super precision bearings and spindle bearings carry a high quality-rating such as ABEC-7 or ABEC-9, and run coolly and smoothly at high speeds. Annular Bearing Engineers’ Committee (ABEC) ratings are used to define different accuracy and tolerance ranges for bearings. As a rule, the higher the ABEC number, the tighter the bearing tolerance. Quality ratings for super precision and spindle bearings are also available from the Anti-friction Bearing Manufacturers Association (AFBMA), the American National Standards Institute (ANSI), the International Organization for Standardization (ISO), Japanese Industrial Standards (JIS), and Deutsch Indusrite Norm.

Products & Services Related to Super Precision and Spindle Bearings

Ball Screw Support Bearings

Ball screw support bearings are designed for use in ball or lead screw applications.

Ceramic Bearings

Ceramic hybrid bearings, the most common type of ceramic bearing, are constructed of steel inner and outer rings with ceramic (typically Si3N4) balls in place of steel. Common types of ceramic bearings are angular contact and conrad.

Cylindrical Roller Bearings

Cylindrical roller bearings have high radial-load capacity and moderate thrust loads. They contain rollers which are cylindrically-shaped, but crowned or end-relieved to reduce stress concentrations.

Slewing Rings and Turntable Bearings

Slewing rings and turntable bearings can accommodate axial, radial and moment loads. They are not mounted in a housing or on a shaft, but are instead mounted directly to a seating surface via mounting holes.

Spherical Roller Bearings

Spherical roller bearings are self-aligning, double row, combination radial and thrust bearings. They use a spherical or crowned roller as the rolling element.

Tapered Roller Bearings

Tapered roller bearings consist of an inner ring (cone), an outer ring (cup), a cage and rollers, which are profiled to distribute the load evenly across the roller.

Thrust Bearings

Thrust bearings are designed for pure thrust loads, and can handle little or no radial load. The rolling element in a thrust bearing can be a ball, needle or roller.

Engineering Web: Super Precision and Spindle Bearings - Machine Design

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Better bearings lead to better parts \| Machine Design Better bearings lead to better parts August 19, 2004
Machine Design \| The BS series of super-precision, angular-contact, thrust ball bearings have static load ratings up to 245 kN, fatigue load limits up to 9.15 kN, and
Articles By Author \| Machine Design The BS series of super-precision, angular-contact, thrust ball bearings have static load ratings up to 245 kN, fatigue load limits up to 9.15 kN, and

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