5000 Series Double-Row Angular Contact Ball Bearings

1 Width Summary and Interchange from Old Series to C & M Series85 Filling Notch Location on Closured Bearings 88 Axial and Radial Internal Clearance 89 Thrust Rating 90 Extra Wide Retrofit Kit and Mounting Instructions 91 Equivalent Load and Life 99 Minimum Radial Load Calculation 99 Life Calculation Examples 1005000 Series Double-RowAngular Contact ball Bearings83 MRC Double-Row Angular Contact ball Bearings aremanufactured in two main types: C-type (Conradconstruction) and M-type (maximum capacity with fillingnotches). Each of the two rows has a 30 Contact construction, or C-type, Double-Row ballbearings have Contact angles that converge outside the bearing , thereby increasing resistance tomisalignment. This type does not have filling Bearings are recommended for applicationswhere single-row ball Bearings are inadequate, butradial loads are not so great as to suggest a filling-notch bearing .

2 They will take heavy radial loads andaxial loads equally in either direction. The C-typedesign fully meets the requirements of AmericanPetroleum Institute (API) Specification the inner and the outer rings have closuregrooves. These Bearings are available with seals,shields, and capacity Double-Row ball Bearings have fillingnotches on one side to permit assembling themaximum number of balls into the bearing . Contactangles converge outside the bearing . All inner andouter rings have closure grooves. These Bearings maybe equipped with seals, shields, and snap-rings. TheM-type bearing has very heavy radial capacity. It alsohas thrust capacity in one direction, with the ability toaccommodate light thrust load in the numbers on M-type Double-Row Bearings arenormally located on either the side face or the of the side face marking is alwayson the side opposite the filling notch and the is offset from the center away from the fillingnotch.

3 Therefore, double sealed or shielded bearingswith the filling notch covered from view can be Cages and TypesThe cage supplied with C-type and M-type Bearings isa one-piece crown-type of heat-treated pressed steel. Itis snapped into place after the full quota of balls hasbeen introduced between the inner and outer Light, Conrad (Non-Filling Notch)935200C1 Light, Extra Width, Conrad (Non-Filling Notch)935300C Medium, Conrad (Non-Filling Notch)945300C1 Medium, Extra Width, Conrad (Non-Filling Notch) 945400C Heavy, Conrad (Non-Filling Notch) 955200M Light, Filling Notch 965200M1 Light, Extra Width, Filling Notch 965300M Medium, Filling Notch 975300M1 Medium, Extra Width, Filling Notch 975300 UPG MRC Pump bearing 98 SeriesPageMRC bearing Services5000 Series Bearings Suffix and Width Summary84 The older MRC 5000 Series Double-Row ballbearings were made in three Series 5200 Light,5300 Medium, and 5400 Heavy each withprogressively larger cross sections.

4 These old-style5000 type double-rows were available in the SBConrad and maximum capacity configurations. The SB Conrad version had Contact angles whichdiverged inwardly, thereby increasing resistance to misalignment. The maximum capacity versionhad Contact angles which converged inwardly,giving it the capability of handling small amounts of misalignment. It also had filling notches on both sides, for the introduction of a maximumcomplement of Double-Row ball Bearings are available in the C-type (Conrad construction) and M-type (withfilling notches on one side only). Both types featureinwardly diverging Contact angles, which providegreater rigidity than found in the previous Double-Row filling-notch type Bearings . A uniquemanufacturing system utilizing common parts isemployed in the manufacture of these a minimum number of components, thesystem provides greater flexibility for producingeither Conrad or maximum capacity types as openbearings or with a variety of closures.

5 Twenty-fourvariations of a single bearing size can bemanufactured to solve your application chart on pages 85-86 outlines the suffixes andwidths of MRC 5000 Series Bearings . The data on the chart do not represent actual availability ofdouble-row products. These data are intended tobe used as references for interchanging. Currentstyle double-rows appear next to their old-stylecounterparts that are the same construction, maximum capacity. BKRigid construction, maximum capacity,standard width. CConrad, rigid construction, standard width. C1 | additional width from standard. 5205C1 & 5212C1 are | wider than standard. FOne shield FFTwo shields GSnap-ring KStandard width MMaximum capacity, rigid construction, standard | additional width from standard.

6 5205M1 & 5212M1 are | wider than capacity, nonrigid width in 5200 Series , extra width isrequired with closures. SConrad construction (Note: always combined with additional suffix letters) SBConrad, rigid construction, narrow width is required with , rigid construction, standard width. ZOne seal ZZTwo sealsMRC Double-Row Suffix Identification SummarySuffix DescriptionSuffix Description5000 Series Bearings Suffix and Width Summary85 Basic Old New bearing Style Style Width Number Suffix Suffix (inches)Basic Old New bearing Style Style Width Number Suffix Suffix (inches)Basic Old New bearing Style Style Width Number Suffix Suffix (inches)

7 5200 Series5106 SBZZ | 5200SB | SBKF | SBKFF | SBKZ | SBKZZ | 5201SB | SBFG | SBKF | SBKFF | SBKFFG | SBKFG | SBKZ | SBKZZ | 5202 Plain | SB | SBFG | SBKF | SBKFF | SBKFG | SBKZZ | 5203SB | SBKF | SBKFF | SBKFFG | SBKFG | SBKZ | SBKZZ | 5204 Plain | KM | KFMF | SB | SBKC | SBKFCF | SBKFFCFF | SBKFFG CFFG | SBKFG CFG | SBKGCG | SBKZCZ | 5205 FMF1 | KM | KGMG | Plain | SB | SBFCF1 | SBKC | SBKFCF | SBKFFCFF | SBKFG CFG | SBKGCG | C1, M1 | 5206 FMF11 | KM | KFMF | KFFMFF | KGMG | Plain | SBFCF11 | SBKC | SBKFCF | SBKFFCFF | SBKFFG CFFG | SBKFG CFG | SBKGCG | SBZZCZZ11 | SBKZZG CZZG11 | C1, M11 | 5207 FMF11 | KM 1 | KFMF1 | KFFMFF1 | KFGMFG1 | KGMG1 | Plain | SBKC1 | SBKFCF1 | SBKFFCFF1 | SBKFG CFG1 | SBKFFG CFFG1 | SBKGCG1 | C1, M11 | 5208 BKFMF1 | BKFFMFF1 | KM 1 | KFMF1 | KFFMFF1 | KFGMFG1 | KGMG1 | Plain1 SBKC1 | SBKFCF1 | SBKFFCFF1 | SBKFG CFG1 | SBKGCG1 | 5209KM 1 | KFMF1 | KGMG1 | Plain1 SBKC1 | SBKFCF1 | SBKFFCFF1 | 5210KM1 | KFMF1 | KFFMFF1 | KGMG1 | Plain1 C 1 | MRC bearing Services5000 Series Bearings Suffix and Width Summary86 Basic Old New bearing Style Style Width Number Suffix Suffix (inches)

8 5300 Series 5300SB | 5301SB | 5302 Plain | SB | 5303G | KF | KFG | SB | SBG | SBKF | SBKFF | SBKFG | 5304 FMF11 PlainM | SBC | SBFCF11 SBGCG | SBKFCF | SBKFFCFF | SBKFFG CFFG | SBKFG CFG | C1, M115305F1 | FG1 | GMG1 KFFMFF1 PlainM1 SBC1 SBF1 | SBFG1 | SBGCG1 SBKFCF1 SBKFFCFF1 SBKFG CFG15306BM 1 | BKFFMFF1 | FMF11 | FGMFG11 | GMG1 | KFMF1 | KFFMFF1 | KFGMFG1 | PlainM1 | C1, M11 | C 1 | Basic Old New bearing Style Style Width Number Suffix Suffix (inches)5307 BKFFMFF1 | FMF11 | FGMFG11 | GMG1 | KFMF1 | KFGMFG1 | PlainM1 | C1, M11 | C 1 | 5308 BGMG1 | FMF11 | FGMFG11 | GMG1 | PlainM1 | C 1 | C1, M11 | 5309BM 1 | FMF11 | FGMFG11 | GMG1 | PlainM1 | C 1 | C1, M11 | 5310 FMF11 | FGMFG11 | GMG1 | KFMF1 | KFGMFG1 | PlainM1 | C 1 | C1, M11 | 5311 FMF12 | FGMFG12 | GMG1 | PlainM1 | C 1 | C1, M12 | 5312 FMF12 | FGMFG12 | GMG2 | PlainM2 | C 2 | C1, M12 | 5313 FMF12 | FGMFG12 | GMG2 | PlainM2 | C 2 | C1, M12 | 5314 FMF12 | GMG2 | KFMF2 | KFGMFG2 | PlainM2 | C 2 | C1.

9 M12 | Basic Old New bearing Style Style Width Number Suffix Suffix (inches)5315 FMF12 | GMG2 | PlainM2 | C 2 | C1, M12 | 5316 GMG2 | PlainM2 | C 2 | 5317 Plain2 | C 2 | 5318 Plain2 | C 2 | 5319 Plain3 | C 3 | 5320 Plain3 | 5321 Plain3 | 5322 Plain3 | 5400 Series5403 Plain1 | 5404 Plain1 | 5405 Plain1 | 5406 Plain1 | C1 | 5407G1 | Plain1 | C 1 | 5408 Plain1 | C1 | 5409G2 | Plain2 | C2 | 5410F2 | Plain2 | C 2 | 5411F2 | G2 | Plain2 | C 2 | 5412 Plain2 | C2 | 5413 Plain2 | C 2 | 5414 Plain3 | C 3 | 5415 Plain3 | C 3 | 5416 Plain3 | C 3 | 5417 Plain3 | C 3 | 5418 Plain3 | C 3 | 5419 Plain4 | Interchange to C- and M- Types Double-Row Angular Contact ball Bearings87 MRC bearing NumbersPrior to 1983 Superseded byBearing numbers of MRC Double-Row ball

10 Bearingsproduced before 1983 differ from the C- and M-typeslisted in this catalog. Shown below is the interchange ofpre-1983 bearing numbers with the C- and Series Double-Row Bearings not listed heremaintain the original bearing number and must bespecified by that number when bearing NumbersPrior to 1983 Superseded byMRC bearing NumbersPrior to 1983 Superseded by5200SB5200C*5200 SBKF5200CF*5200 SBKFF5200 CFF*5200 SBKZ5200CZ*5200 SBKZZ5200 CZZ*5201SB5201C*5201 SBKF5201CF*5201 SBKFF5201 CFF*5201 SBKZ5201CZ*5201 SBKZZ5201 CZZ*5202SB5202C*5202 SBKFF5202 CFF*5202 SBFG5202 CFG1*5202 SBKFG5202 CFG*5202 SBKZ5202CZ*5202 SBKZZ5202 CZZ*5203SB5203C*5203 SBKF5203CF*5203 SBKFF5203 CFF*5203 SBKFG5203 CFG*5203 SBKZ5203CZ*5203 SBKZZ5203 CZZ*5204 SBK5204C5204 SBKF5204CF5204 SBKFF5204 CFF5204 SBKFG5204 CFG5204