RBC Bearings Inc.
RBC Bearings Inc.
Address: One Tribology Center
Oxford, CT 06478
Phone: (203) 267-7001
Fax: (203) 267-5000
Email: AeroInfo@RBCbearings.com
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MS27648
• SAE-AS7949
• Single row, ball, external self aligning, extra light duty
• PTFE seals and CRES sealcaps
• Exposed surfaces except bore, caps, and seals are cadmium plated
• Prelubricated for life
• Series is internally identical to the KP-B series. Self-alignment is provided by an external self-aligning ring whose internal spherically-ground surface is accurately matched to the external spherically-ground surface of the outer ring. These bearings are designed to compensate for initial misalignment
•Also offered with CRES 440C material and/or zinc nickel plating per OEM specifications
RBC-Airframe-Bearing-KP-BS-Series
Unit of Measure
1 

Item #

Bore (B)

Outside Diameter (D)

Inside Ring Width (W)

Outside Ring Width (H)

Radial Limit Load Rating

KP16BSFS428 N/A 1.00 in N/A 1.94 in N/A 0.437 in N/A 0.375 in N/A 8085 lbf
KP16BSFS464 N/A 1.00 in N/A 1.94 in N/A 0.437 in N/A 0.375 in N/A 8085 lbf
KP21BSFS428 N/A 1.31 in N/A 2.25 in N/A 0.437 in N/A 0.375 in N/A 9840 lbf
KP21BSFS464 N/A 1.31 in N/A 2.25 in N/A 0.437 in N/A 0.375 in N/A 9840 lbf
KP23BSFS464 N/A 1.44 in N/A 2.38 in N/A 0.437 in N/A 0.375 in N/A 10500 lbf
KP25BSFS428 N/A 1.56 in N/A 2.50 in N/A 0.437 in N/A 0.375 in N/A 11300 lbf
KP25BSFS464 N/A 1.56 in N/A 2.50 in N/A 0.437 in N/A 0.375 in N/A 11300 lbf
KP29BSFS428 N/A 1.81 in N/A 2.75 in N/A 0.437 in N/A 0.375 in N/A 12700 lbf
KP29BSFS464 N/A 1.81 in N/A 2.75 in N/A 0.437 in N/A 0.375 in N/A 12700 lbf
KP33BSFS428 N/A 2.06 in N/A 3.00 in N/A 0.437 in N/A 0.375 in N/A 14400 lbf
KP33BSFS464 N/A 2.06 in N/A 3.00 in N/A 0.437 in N/A 0.375 in N/A 14400 lbf
KP37BSFS428 N/A 2.31 in N/A 3.25 in N/A 0.437 in N/A 0.375 in N/A 15800 lbf
KP37BSFS464 N/A 2.31 in N/A 3.25 in N/A 0.437 in N/A 0.375 in N/A 15800 lbf
KP47BSFS464 N/A 2.94 in N/A 4.13 in N/A 0.531 in N/A 0.469 in N/A 24700 lbf
KP49BSFS428 N/A 3.06 in N/A 4.25 in N/A 0.531 in N/A 0.469 in N/A 27500 lbf
KP49BSFS464 N/A 3.06 in N/A 4.25 in N/A 0.531 in N/A 0.469 in N/A 27500 lbf
KP23BSFS428 N/A 1.44 in N/A 2.38 in N/A 0.437 in N/A 0.375 in N/A 10500 lbf
KP47BSFS428 N/A 2.94 in N/A 4.13 in N/A 0.531 in N/A 0.469 in N/A 24700 lbf
KP48BSFS428 N/A 3.00 in N/A 4.25 in N/A 0.531 in N/A 0.469 in N/A 27500 lbf
KP48BSFS464 N/A 3.00 in N/A 4.25 in N/A 0.531 in N/A 0.469 in N/A 27500 lbf
Unit of Measure
1