Thin Section Ball Bearings

RBC Bearings offers a full line of standard and many specialty and custom designed thin section ball bearings to the aerospace industry and all major OEMs. RBC Bearings' thin section ball bearings are offered in radial contact, angular contact, 4-point contact and sealed radial contact designs. These bearings are offered in ABEC 1 through ABEC7 precision grades, pre-loaded, corrosion protected, grease-lubricated, and are available with numerous separator, ball, shield, seal, and lubrication options. Standard thin section ball bearings have SAE 52100 steel rings and balls. RBC thin section ball bearings can be manufactured from other specialty bearing steels to provide corrosion resistance, high temperature capability, alternative load capacity, or chemical compatibility.

RBC Bearings has manufactured thin section ball bearings from SAE 440C stainless steel to provide corrosion resistance. As an alternative to CRES rings, the entire surface of the rings can be plated with nodular thin dense chrome (TDC). This plating, which meets AMS 2438, achieves a molecular bond that will not flake, peel, or separate from the base material. Special RBC Bearings thin section ball bearings have been manufactured from aluminum, 300 series stainless steel, 17-4PH and other metals. Some special ball materials include CRES 440C, 300 series stainless steel, silicon nitride, and M50 steel.

RBC Bearings supplies thin section ball bearings with many different lubricants depending on the application requirements. Greases that are designed specifically for high speed, low torque, water resistance, high temperature, and oscillatory motion can be provided. Additional lubricants, such as dry film, are suitable for use in vacuums and space applications. Radial play (diametral clearance) can be adjusted for mounting fits or temperature changes. Pre-loads can be ground into the bearings to increase or decrease loads to meet particular application requirements. In addition, mounting features, such as flanges, anti-rotation tabs, and mounting holes can be incorporated on the inner and outer rings. RBC Bearings thin section ball bearings may be customized to meet your application’s demanding requirements.

Bearing Type

Contact

Radial

Axial

Moment

Reversing Axial

Combined
Radial-Thrust

C

Radial

Excellent

Good

Good

Good

Good

A

Angular

Good

Excellent

Do Not Use

Do Not Use

Good

X

4-Point

Poor

Good

Excellent

Excellent

Poor

RBC thin section bearings have been qualified to stringent military and customer design and performance standards in RBC test laboratories. For information on thin section ball bearings or for information on the many standard series of thin section ball bearings available from RBC, please consult RBC Customer Service at 866.RBC.AERO (866.722.2376) or view our Engineering Information. Bearing specifications can be found on the Thin Secion Bearing Engineering page.

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