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Analysis of prefixes and suffixes for Schaeffler high-precision angular contact ball bearings

We offer more than just bearings; we also provide technical support, including bearing selection and interchangeability between different brands such as NSK, FAG, TIMKEN, and SKF.
Analysis of prefixes and suffixes for Schaeffler high-precision angular contact ball bearings
Case Details
The following information is from Schaeffler's official documents and combined with our daily work experience. Please contact us promptly if there are any errors.
Location Code Description
Suffix T Textile laminated phenolic resin,Outer ring centred
Prefix FD FLOATING DISPLACEMENT BEARINGS Ex:FD1010T.P4S,FD1010.2RSD.T.P45
Suffix P4S FAG standard precision, referring to DIN620, a higher precision grade than P4; (bearing tolerances meet P4, operational accuracy and parallelism meet P2).
Suffix 2RSD Sealed at both sides and greased
Suffix K Tapered bore(taper 1:12)
Suffix TPA Textile laminated phenolic resin,Series B718,Outer ring centred
Prefix B Standard steel ball spindle bearings, e.g., B7008-C-T-P4S-UL
HC Ceramic ball spindle bearings, e.g., HC7008-E-T-P4S-UL
Prefix HCB Hybrid standard ceramic ball spindle bearings, e.g., HCB7008-C-T-P4S-UL
HCRS High-speed ceramic ball spindle bearings, e.g., HCRS7008-D-T-P4S-UL
Prefix HCS Sealed ceramic ball spindle bearings, e.g., HCS7008-C-T-P4S-UL
HS Small steel ball spindle bearings, e.g., HS7008-C-T-P45-UL
Prefix HSS Sealed small steel ball spindle bearings, e.g., HSS7008-E-T-P4S-UL
RS Newly designed high-speed steel ball spindle bearings, e.g., RS7008-D-T-P4S-UL
Prefix XC X-Life ultra-long life ceramic ball spindle bearings, e.g., XC7008-E-T-P4S-UL
XCB X-Life ultra-long life standard ceramic ball spindle bearings, e.g., XCB7008-C-T-P4S-UL
Prefix XCS Sealed X-Life ultra-long life ceramic ball spindle bearings, e.g., XCS7008-E-T-P4S-UL
Suffix P4S-
K5
The diameter tolerance is narrower than the P4S standard: the tolerance range is at the center of the diameter tolerance, and the width of the tolerance is 1/3 of the diameter tolerance. Therefore, the diameter tolerance is narrower than P2.
Suffix C Contact angle 15°
Suffix D Contact angle 20°
Suffix E Contact angle 25°
Suffix 2RSD Both seals are filled with grease
Suffix CDLR The contact angle is 15°, and it features a direct lubrication design.

Direct lubrication bearings ensure that the supplied lubricant reaches the contact area directly. This is achieved through circumferential annular lubrication grooves and radial lubrication holes on the outer ring of the bearing. A precision O-ring seal further ensures a tight seal within the bearing housing.
Suffix DDLR The contact angle is 20°, and it features a direct lubrication design.

Direct lubrication bearings ensure that the supplied lubricant reaches the contact area directly. This is achieved through circumferential annular lubrication grooves and radial lubrication holes on the outer ring of the bearing. A precision O-ring seal further ensures a tight seal within the bearing housing.
Suffix EDLR The contact angle is 25°, and it features a direct lubrication design.

Direct lubrication bearings ensure that the supplied lubricant reaches the contact area directly. This is achieved through circumferential annular lubrication grooves and radial lubrication holes on the outer ring of the bearing. A precision O-ring seal further ensures a tight seal within the bearing housing.
Suffix L75 FAG grease Arcanol L75 for non-sealed bearings
Bearings with seals at both sides are lubricated for life with L75
Suffix H Heavy preloading
Suffix L Light preloading
Suffix M Medium preloading
Suffix DB A Set of 2 bearings,Back-to-back arrangement
Suffix DF A Set of 2 bearings,Face-to-face arrangement
Suffix DT A Set of 2 bearings Tandem arrangement
Suffix DU A set of two universal bearings
Suffix PU A set of two universal bearings
Suffix QBC A Set of four bearings Tandem-O-Tandem arangem.
Suffix QU A set of four universal bearings
Suffix TBT A Set of three bearings Tandem-O-arrangement
Suffix TU A set of three universal bearings
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