The RBC® BEARINGS offers a full line of airframe control ball bearings to the aerospace industry in both “Standard” and “Precision” series. The prefix “M” in a bearing number indicates that it is of a precision series. Although designed and manufactured under demanding quality control requirements for airborne systems, these bearings have been successfully used in many industrial applications, where oscillatory movement, high loads, or corrosive environments are prevalent.
RBC® BEARINGS airframe control ball bearings conform to SAE-AS7949 (formerly MIL-B-7949) and many major OEM specifications. These bearings are of lightweight design, corrosion-resistant, grease-lubricated, and typically sealed. Airframe control bearing rings and balls are made of hardened bearing alloy, AISI 52100, with all exposed surfaces, except bearing bore, caps and seals, plated for corrosion protection. For improved corrosion protection, RBC® BEARINGS supplies bearings made of hardened stainless steel alloy, AISI 440C. This alloy may be passivated or plated with cadmium or zinc nickel for enhanced corrosion protection.
The RBC® BEARINGS Airframe Control Ball Bearings are offered in different series. The KP/KP-A and KSP/KSP-A series, presented separately, are briefly discussed below.
KP (Heavy Duty) and KP-A (Medium Duty) SAE-AS7949 Series radial ball bearings manufactured with Plyoseals. KP heavy duty single row sealed bearings comply with MS27640 specifications while KP-A medium duty single row ball deep groove sealed bearings with MS27641 specifications. Both KP and KP-A radial ball bearings are prelubricated for life and feature PTFE seals and CRES sealcaps, cadmium plated exposed surfaces except bore, caps, and seals. Both are also offered with CRES 440C material and/or zinc nickel plating per OEM specifications. Load limit ratings: Radial 1230-lbs, thrust 300-lbs.
KSP/KSP-A Series SAE-AS7949 Series single/double row, self-aligning, light and heavy duty ball bearings with bonded PTFE seals and cadmium plated exposed surfaces except bore, caps, and seals. Like those of KP/KP-A Series, both KSP and KSP-A bearings are prelubricated for life and are also offered with CRES 440C material and/or zinc nickel plating per OEM specifications.
For additional information please refer to the supplied documentation in the respective product presentations.