Unitized Spherical Roller Bearings
Unitized SphericalRoller Bearings
Another bearing breakthrough from the name you trustFor more than 70 years, the Sealmaster name has meant the very best in bearing quality,reliability and performance. Over those years we have brought an array of cutting-edge technicalimprovements and platform advancements to applications around the world. Since 1976,Sealmaster Roller Pillow Block (RPB) tapered roller bearings have set the standard for performancein some of the toughest job sites.Now Emerson Power Transmission is continuing ourSealmaster Unitized Spherical Roller Bearing (USRB) collartradition of innovation, with the Sealmaster Unitizedmount bearings are anchored to the shaft with concentricSpherical Roller Bearing (USRB). This new series builds onlocking collars and setscrews at 120 , providing a balancedthe rich heritage of past Sealmaster bearings and bringsthree-point contact and extra holding power.you design enhancements of an entirely new level.Sealmaster USRB Unitized Spherical Roller BearingThe Sealmaster Unitized Spherical Roller Bearing (USRB)adapter mount bearings grip the shaft with an advancedis available in two distinct locking systems: collar mountadapter-lock system, for fast installation and removal.with bore sizes from 1 /8 to 7 ; and adapter mountOur advanced integral locking system incorporates axialwith bore sizes from 1 /8 to 8 . Its race-mountedcap screws that let you mount and dismount the bearingseals accommodate /-2 misalignment. Plus, for easyfrom one side. The result: this highly engineered lockinginstallation and maintenance the new pillow blocks fromsystem requires less force and installs more quickly than5 /16 to 8 are shaft ready with replaceable cartridgecompetitive bearings. Sealmaster Unitized Spherical Rollerinserts that mount more quickly than competitiveBearings (USRB) are also shaft ready and require only a hexversions. Just as important, the new Emerson Powerkey and torque wrench to install.117Transmission Sealmaster performance mounted rollerbearing brings you the time-tested reliability of theThe new Sealmaster mounted spherical roller bearingSealmaster brand, a unique advantage that helps maximizeblends traditional Sealmaster features with innovativeuptime and minimize overall operating costs.technology, for exceptional performance. This combinationdramatically cuts the potential for downtime and providesOur engineers have developed new geometries that let usthe kind of interchangeability, lower operating costs andcreate an innovative double-row spherical roller bearingreliability you need to keep your equipment – and yourfor load capacity, misalignment and speed capabilities.business – running 24/7.The Sealmaster performance mounted roller bearing is anadvanced spherical roller bearing design that combinestraditional Sealmaster features and built-in benefits witheven more performance and value. Among the key designfeatures of the Sealmaster performance mounted rollerbearing are two locking systems.1
Table of ContentsUSRB Features and Benefits3-4Pillow Block USRB 5000 & 5000A4-5Pillow Block USRBF 5000 & 5000A7-8Pillow Block USRB 5500 & 5500A7-8Flange Block USFB 5000 & 5000A9-10Flange Cartridge USFC 5000 & 5000A11-12Flange Bracket USBF 5000 & 5000A11-12Take-Up USTU 5000 & 5000A13-14Pillow Block USRBE 5000 & 5000A15-16Flange Block USFBE 5000 & 5000A17-18Flange Cartridge USFCE 5000 & 5000A19-20Flange Block USF3B 500021Spherical Inserts USI 5000 & 5000A22Engineering Section23-34General Engineering23-28Lubrication29Vibration Analysis30InstallationSealmaster USRB Nomenclature31-34
Felt SealOne-Piece HousingFelt seal (U.S. patent #5002406) – The Sealmaster patented felt-linedrotating flinger seal, mounted between races, allows up to /-2 ofmisalignment. The outer member rotates with the inner race, to helpdirect contamination away from the seal. Due to the unique sphericalgeometric design of the seal contact areas, sealing effectiveness ismaintained throughout the entire specified range of misalignment.The patented felt design provides a tight labyrinth seal, which acts asa filter to help exclude foreign material and has low friction. The sealstampings are black oxide coated for corrosion resistance.Durable one-piece cast-ironhousings for shaft sizes from1 1/8 –5 . Ductile iron housingswith type E mounting dimensionsfrom 1 15/16 –4 .Contact SealContact seal (patent pending) – The Sealmaster double-lip contactseal, mounted between races, also allows up to /-2 of misalignment.The outer member rotates with the inner race, to help directcontamination away from the seal. Due to the unique sphericalgeometric design of the seal contact areas, sealing effectiveness ismaintained throughout the entire specified range of misalignment.This seal operates with low drag, making it a smart choice for dry,dusty or wet conditions. The rotating double-lip hinge seal designdelivers exceptional limiting speed.3MisalignmentWide Outer RaceThe arrangement of rolling elements and races in Sealmaster MountedSpherical Roller Bearings compensates for /-2 of misalignment – upto twice an SAF – while maintaining catalog load ratings and sealingeffectiveness. The Sealmaster Mounted Spherical Roller Bearing hasa replaceable cartridge insert that consists of a double-row sphericalroller bearing with patented race-mounted seals. These integrallysealed, one-piece cartridge inserts can also be used for mountingin cylindrical-bore housings for an even wider range of applications,including extruders, mill equipment and coating lines, where space isat a premium.The wide outer race, coupled with innovative rolling-elementgeometries, provides higher load capacity and more insert stabilityin the housing. More important, the wide outer race provides forbetter sealing and creates a large internal grease chamber, for moregrease capacity. The outer races are black oxide coated for corrosionprotection. All Sealmaster Unitized Spherical Roller Bearings (USRB)contain high-capacity double-row spherical roller bearings designedto handle a combination of loads. New geometries developed bySealmaster engineers result in an innovative double-row sphericalroller bearing with load capacity, misalignment and speed capability.
Permanent metal nametagwith part-number description,bore size and date code,for easy identificationProvision for lifting lugPermanently embossedSealmaster and industry SAFnumber on each housing cap,for easy reorder and replacementPry slots for easy cap removaland quick cartridge replacementLarge pads and dimples on thehousing cap, for easy mountingof vibration- and temperaturemonitoring devicesCast-in centerline marks forpositioningDimples for dowel-pin drillingSplit Cast Iron HousingsDurable split cast iron housingsavailable for shaft sizes from5 7/16 – 8 .Collar MountSealmaster performance mounted roller bearing pillow blocksare anchored to the shaft with two concentric locking collars andsetscrews at 120 , providing a balanced three-point contact andextra holding power.Adapter Mount**Shown with Adapter Mount SystemThe Sealmaster performance mounted roller bearings grip the shaftwith an advanced adapter mount system (patent pending), for fastinstallation and removal. Our advanced integral locking systemincorporates axial cap screws that let you mount and dismount thebearing from one side. The result: this highly engineered lockingsystem requires less force and installs up to six times more quicklythan competitive bearings. Sealmaster Mounted Spherical RollerBearings are also shaft ready and require only a hex key and torquewrench to install; no special tools or feeler gauges are required.4
Pillow BlockUSRB 5000Two Bolt Base, Collar MountNomenclatureShaft DiameterAB(Inches)USRB5000-1021 1/8USRB5000-1031 3/16USRB5000-1041 1/4USRB5000-1061 3/8USRB5000-1071 7/16USRB5000-1081 /2USRB5000-1111 11/16USRB5000-1121 3/4USRB5000-1151 /16USRB5000-2002CMin.Max.DGHJLM*1 3/46 5/164 1/252 3/161 1/163 3/42 3/42 49/642 3/431 7/86 7/84 11/165 5/162 3/161 3/163 7/82 3/42 49/642 3/41/22 1/87 3/85 3/165 13/162 3/161 5/164 1/42 7/82 3/42 51/641/22 1/48 3/85 5/166 9/162 3/161 3/84 9/162 7/832 25/325/82 1/28 7/86 9/167 1/162 7/161 5/853 1/83 1/43 5/645/82 3/49 1/46 13/167 7/162 11/161 3/45 11/163 3/843 9/325/83 1/410 7/167 13/168 7/162 13/162 1/46 7/163 7/83 3/43/43 3/4139 1/410 3/43 3/162 1/47 1/24 15/325 5/164 15/647/84 1/814 1/41011 3/43 9/162 1/28 7/164 15/1664 23/32/8115USRB5000-2032 3/16USRB5000-2072 7/16USRB5000-2082 1/2USRB5000-2112 11/16USRB5000-2122 3/4USRB5000-2152 15/16USRB5000-3003USRB5000-3033 3/16USRB5000-3073 7/16USRB5000-3083 1/2USRB5000-3113 11/16USRB5000-3153 15/16USRB5000-4004* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.5Bolt Size417/321
Pillow BlockUSRB 5000ATwo Bolt Base, Adapter MountNomenclatureShaft DiameterAB(Inches)USRB5000A-1021 1/8USRB5000A-1031 3/16USRB5000A-1041 1/4USRB5000A-1061 3/8USRB5000A-1071 7/16USRB5000A-1081 /2USRB5000A-1111 11/16USRB5000A-1121 3/4USRB5000A-1151 /16USRB5000A-2002CMin.Max.DGHJLM*Bolt Size1 3/46 5/164 1/252 3/161 1/163 3/43 23/642 47/643 11/323/81 7/86 7/84 11/165 5/162 3/161 3/163 7/83 23/642 47/643 11/321/22 1/87 3/85 3/165 13/162 3/161 5/164 1/43 29/642 63/643 3/81/22 1/48 3/85 5/166 9/162 3/161 3/84 9/163 1/23 3/163 13/325/8115USRB5000A-2032 3/162 1/28 7/86 9/167 1/162 7/161 5/853 57/643 29/643 27/325/8USRB5000A-2072 7/162 1/22 3/49 1/46 13/167 7/162 11/161 3/45 11/164 5/163 63/644 7/325USRB5000A-208/8USRB5000A-2112 11/163 1/410 7/167 13/168 7/162 13/162 1/46 7/164 31/644 25/644 3/83/43 3/4139 1/410 3/43 3/162 1/47 1/25 35/645 15/325 21/647/84 1/814 1/41011 3/43 9/162 1/28 7/165 15/165 13/165 23/32USRB5000A-2122 3/4USRB5000A-2152 15/16USRB5000A-3003USRB5000A-3033 3/16USRB5000A-3073 7/16USRB5000A-3083 1/2USRB5000A-3113 11/16USRB5000A-3153 15/16USRB5000A-40041* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.6
Pillow BlockUSRBF 5000Four Bolt Base, Collar MountNomenclatureShaft DiameterAB(Inches)USRBF5000-2072 7/16USRBF5000-2082 1/2USRBF5000-2112 /16USRBF5000-2122 3/4USRBF5000-2152 15/16CMin.Max.DEGHJLM*43 43/641/2/324 19/645/8Bolt Size2 3/49 1/46 7/87 5/83 1/41 3/41 3/45 11/163 3/83 1/410 7/167 7/88 3/83 3/41 7/82 1/46 7/163 7/83 3/4139 1/410 3/43 7/822 1/47 1/24 15/325 5/164 19/323/44 1/415 1/411134 1/22 1/42 5/88 9/164 15/1665 13/643/44 3/416 3/6413144 5/82 1/22 3/49 3/86 3/46 1/25/643/45 /218 /215165 /82 /4310 /87 /6476 /327/811USRBF5000-3003USRBF5000-3033 3/16USRBF5000-3073 7/16USRBF5000-3083 /2USRBF5000-3113 11/16USRBF5000-3153 15/16USRBF5000-4004USRB5000-4074 7/16USRB5000-4084 1/2USRB5000-4154 /164171151113727333Pillow BlockUSRB 5500Four Bolt Base, Collar MountNomenclatureShaft DiameterACB(Inches)DMin.Max.EGJLM*Bolt SizeUSRB5532-5075 7/166 11/162217 3/819 1/46 1/43 3/42 5/813/329 1/328 1/27 27/321USRB5534-5155/167 1/1624 3/419 3/821 5/86 3/44 1/42 3/414 31/329 25/32108 15/321USRB5536-6076 7/16120 /823 /87 /854 /836115 /6410 /21116 1/226 /41USRB5536-6087 /239 /641USRB5538-6156 15/16USRB5538-70077 7/82821 5/824 3/87 1/24 1/23 1/816 9/1610 1/2119 13/641 1/41575* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.7H171
Pillow BlockUSRBF 5000AFour Bolt Base, Adapter MountNomenclatureShaft DiameterAB(Inches)USRBF5000A-2072 7/16USRBF5000A-2082 1/2USRBF5000A-2112 11/16USRBF5000A-2122 3/4USRBF5000A-2152 15/16USRBF5000A-3003USRBF5000A-3033 3/16USRBF5000A-3073 7/16USRBF5000A-3083 /2USRBF5000A-3113 11/16USRBF5000A-3153 15/16USRBF5000A-4004USRB5000A-4074 7/16USRB5000A-4084 1/2USRB5000A-4154 15/16USRB5000A-5005CMin.Max.DEGHJLM*Bolt Size2 3/49 1/46 7/87 5/83 1/41 3/41 3/45 11/164 5/163 63/644 39/641/23 1/410 7/167 7/88 3/83 3/41 7/82 1/46 7/164 31/644 25/644 29/325/83 3/4139 1/410 3/43 7/822 1/47 1/25 35/645 15/325 43/643/44 1/415 1/411134 1/22 1/42 5/88 9/165 15/165 13/166 13/643/44 3/416 3/6413144 5/82 1/22 3/49 3/86 27/646 11/326 31/643/45 1/218 1/215165 1/82 3/4310 7/87 1/87 13/647 3/327/81Pillow BlockUSRB 5500AFour Bolt Base, Adapter MountNomenclatureShaft DiameterACB(Inches)DMin.Max.EGHJLM*Bolt SizeUSRB5532A-5075 7/166 11/162217 3/819 1/46 1/43 3/42 5/813/327 35/647 47/648 17/641USRB5534A-5155/167 1/1624 3/419 3/821 5/86 3/44 1/42 3/414 31/328 17/328 1/29 7/641USRB5536A-6076 7/16120 /823 /87 /854 /836115 /6439 /8119 /16136 1/226 /41USRB5536A-6087 /239 /161USRB5538A-6156 15/16USRB5538A-70077 7/82821 5/824 3/87 1/24 1/23 1/816 9/169 3/89 11/16101 1/4USRB5544A-7087 1/2USRB5544A-7157 15/169 1/232 3/424 3/427 7/88 3/45 1/43 3/419 5/810 13/3211 7/6411 3/81 1/2USRB5544A-80081575* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.178
Flange BlockUSFB 5000Four Bolt Base, Collar MountNomenclatureShaft DiameterABB.C.D52 1/16GH*JLM3/42 25/322 3/42 49/643 7/81/2Bolt Size(Inches)USFB5000-1061 3/8USFB5000-1071 7/16USFB5000-1081 1/2USFB5000-1111 11/16USFB5000-1121 3/4USFB5000-1151 15/16USFB5000-2002USFB5000-2032 3/16USFB5000-2072 7/16USFB5000-2082 1/2USFB5000-2112 /164 5/8317/3253 57/645 1/22 1/43/42 29/322 7/82 3/44 1/21/25 3/164 1/165 3/42 1/43/42 29/322 7/834 3/41/25 7/84 1/26 3/82 7/1613/163 5/323 1/83 1/45 1/85/816 /8494 /6436 /42 /321 /32133 /323 /8435 /45/87 3/165 9/167 7/82 7/8/163 57/643 7/8/326 5/83/48 3/86 23/329 1/23 7/321 1/84 1/24 15/325 5/167 5/83/49 1/27 19/3210 3/43 1/21 1/84 31/324 15/1668 3/87/821111USFB5000-2122 3/4USFB5000-2152 15/16USFB5000-3003USFB5000-3033 3/16USFB5000-3073 7/16USFB5000-3083 1/2USFB5000-3113 11/16USFB5000-3153 15/16USFB5000-400415* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.93417
Flange BlockUSFB 5000AFour Bolt Base, Adapter MountNomenclatureBoreABB.C.D52 1/16GH*JLMBolt Size3/43 3/83 23/642 47/643 7/81/23 29/642 63/644 1/21/23 1/23 3/164 3/41/2(Inches)USFB5000A-1061 3/8USFB5000A-1071 7/16USFB5000A-1081 1/2USFB5000A-1111 11/16USFB5000A-1121 3/4USFB5000A-1151 15/16USFB5000A-20024 5/8317/3253 57/645 1/22 1/43/43 31/645 3/164 1/165 3/42 1/43/4313/163 29/323 57/643 29/645 1/85/81 /324 /6454 /16633 /6435 /45/84/644 31/644 25/646 5/83/417/32USFB5000A-2032 3/165 7/84 1/26 3/82 7/16USFB5000A-2072 7/1612 1/24 /643USFB5000A-2086 /8496 /42 /32USFB5000A-2112 /167 3/165 9/167 7/82 7/88 3/86 23/329 1/23 7/321 1/85 19/325 35/645 15/327 5/83/49 1/27 19/3210 3/43 1/21 1/85 63/645 15/165 13/168 3/87/82112111USFB5000A-2122 3/4USFB5000A-2152 15/16USFB5000A-3003USFB5000A-3033 3/16USFB5000A-3073 7/16USFB5000A-3083 1/2USFB5000A-3113 11/16USFB5000A-3153 15/16USFB5000A-400415/1633* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.10
Flange CartridgeUSFC 5000Collar MountNomenclatureShaft DiameterH*JLMNPR/321 7/162 3/42 49/643 1/21 9/323 5/8–15/321 27/642 7/82 3/441 7/164 1/492 1/417/321 25/642 7/834 3/81 15/324 1/219632 /817/32371 /6413 /813 /434 /4151 /325156 1/22 9/1619/321 19/323 3/845 5/161 5/85 1/258 3/47 1/22 7/823/321 63/643 7/861 27/326 3/810 1/48 5/83 7/6453/642 13/324 15/325 5/167 3/161 27/3210 7/89 3/83 1/231/322 21/324 15/1667 3/42 1/16H*JLAB.C.DG5 1/44 3/82 1/16156 1/85 1/82 1/46 3/85 3/817 /87 5/8Bolt 001 3/81 7/161 1/21 11/161 3/41 15/1622 3/162 7/162 1/22 11/162 3/42 15/1633 3/163 7/163 1/23 11/163 15/164417/323/8/167/16/327/321/2/81/219/325/87 3/819/323/48 1/89/163/4/16* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.Flange BracketUSBF 5000Three Bolt, Collar MountNomenclatureBoreABCDEFGMPBolt Size(Inches)/82 25/322 3/42 49/643 3/42 1/41/2/162 29/322 7/834 1/42 1/41/2/43 13/323 3/845 11/162 21/325/8USBF5000-1071 7/164 1/43 1/422 3/86 1/81 1/45USBF5000-1151 15/165 3/1642 3/42 15/167 5/161 5/896 1/44 7/833 3/49 3/321 3/43Four Bolt, Collar MountUSBF5000-2072 7/16* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.11
Flange CartridgeUSFC 5000AAdapter MountNomenclatureAB.C.D5 1/44 3/82 1/16156 1/85 1/82 1/46 3/85 3/817 /87 5/8Shaft Diam.eterGH*JLMNPRBolt Size/322 3/643 23/642 47/643 1/21 9/323 5/8–315/3223 29/642 63/6441 7/164 1/49/167/162 1/417/322 1/643 1/23 3/164 3/81 15/324 1/219/327/16632 /817/322 /32573 /64293 /6434 /4151 /32515/321/26 1/22 9/1619/322/324 5/163 63/645 5/161 5/85 1/25/81/28 3/47 1/22 7/823/322 19/324 31/644 25/6461 27/326 3/819/325/810 1/48 5/83 7/6453/643 1/25 35/645 15/327 3/161 27/327 3/819/323/410 7/89 3/83 1/231/323 21/325 15/165 13/167 3/42 1/168 1/89/163/4H*JL3 000A-315USFC5000A-4001 3/81 7/161 1/21 11/16 11 3/43 9/162 1/48 1/24 15/1664 23/32Housings are ductile iron.* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.15H174171
Pillow BlockUSRBE 5000ATwo Bolt Base, Adapter Mount with Type E DimensionsNomenclatureShaft DiameterAB(Inches)USRBE5000A-1151 15/16USRBE5000A-2002USRBE5000A-2032 3/16USRBE5000A-2072 7/16USRBE5000A-2082 1/2USRBE5000A-2112 /16CMin.Max.DGHJL3 1/23 3/162 1/48 7/867 1/82 7/161 5/1642 1/29 5/86 1/27 7/82 1/21 7/164 31/323 57/643 29/6432 /410 /876 /858 /8132 /1691 /1655 /84 5/163 1/811 5/87 7/89 5/82 5/81 5/86 1/163 3/413 1/29 3/811 1/43 1/82 1/164 1/814 1/41011 3/43 9/162 1/43/83 7/85/8633 /64194 /645/84 31/644 25/644 17/643/47 3/85 35/645 15/325 19/647/88 1/25 15/165 13/165 23/32319/32Bolt Size517/32M*11USRBE5000A-2122 3/4USRBE5000A-2152 15/16USRBE5000A-3003USRBE5000A-3033 3/16USRBE5000A-3073 7/16USRBE5000A-3083 1/2USRBE5000A-3113 11/16USRBE5000A-3153 15/16USRBE5000A-40041Housings are ductile iron.* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.16
Flange BlockUSFBE 5000Four Bolt Base, Collar Mount with Type E DimensionsNomenclatureShaft DiameterGH*JLM/82 29/322 7/834 31/321/22 5/813 5/323 1/83 1/45 15/325/87 19/322 11/1613 13/323 3/846 3/325/868 31/642 3/41 1/163 57/643 7/8/326 53/643/48 5/879 29/323 1/41 1/44/644 15/325 5/167 31/323/49 1/27 19/3210 3/43 11/161 1/44 31/324 15/1668 27/647/8ABB.C.D5 1/24 3/86 3/162 9/166 3/164 7/86 57/646 3/45 3/87 5/8Bolt Size(Inches)USFBE5000-1151 15/16USFBE5000-2002USFBE5000-2032 3/16USFBE5000-2072 7/16USFBE5000-2082 1/2USFBE5000-2112 11/16USFBE5000-2122 3/4USFBE5000-2152 15/16USFBE5000-3003USFBE5000-3033 3/16USFBE5000-3073 7/16USFBE5000-3083 1/2USFBE5000-3113 11/16USFBE5000-3153 15/16USFBE5000-40047Housings are ductile iron.* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.1733417
Flange BlockUSFBE 5000AFour Bolt Base, Adapter Mount with Type E DimensionsNomenclatureShaft DiameterABB.C.D5 1/24 3/86 3/162 9/166 3/164 7/86 57/646 3/45 3/87 5/8GH*JLM3 1/23 3/164 31/321/2Bolt Size(Inches)USFBE5000A-1151 15/16USFBE5000A-2002USFBE5000A-2032 3/16USFBE5000A-2072 7/16USFBE5000A-2082 1/2USFBE5000A-2112 11/16USFBE5000A-2122 3/4USFBE5000A-2152 15/16USFBE5000A-3003USFBE5000A-3033 3/16USFBE5000A-3073 7/16USFBE5000A-3083 1/2USFBE5000A-3113 11/16USFBE5000A-3153 15/16USFBE5000A-4004/832 5/813 29/323 57/643 29/645 15/325/87 19/322 11/1614 21/644 5/163 63/646 3/325/868 31/642 3/41 1/164/644 31/644 25/646 53/643/48 5/879 29/323 1/41 1/45 19/325 35/645 15/327 31/323/49 1/27 19/3210 3/43 11/161 1/45 63/645 15/165 13/168 27/647/871733/32Housings are ductile iron.* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.18
Flange CartridgeUSFCE 5000Collar Mount with Type E DimensionsNomenclatureShaft DiameterAB.C.DGH*JLMNP6 3/85 3/82 7/1611 57/642 7/834 1/21 1/164 1/23/817 /8612 /21631 /6413 /813 /474 /811 /851/257 /816 /22 /1611 /1692 /643 /8435 /811 /815 /21/28 3/47 1/22 9/16/162 27/643 7/8/326 1/41 1/46 3/85/810 1/48 5/83 1/81 7/162 15/164 15/325 5/167 1/81 5/167 3/83/410 7/89 3/83 1/21 1/162 21/324 15/1667 3/42 1/168 1/83/4Bolt Size(Inches)USFCE5000-1151 15/16USFCE5000-2002USFCE5000-2032 /16USFCE5000-2072 7/16USFCE5000-2082 1/2USFCE5000-2112 11/16USFCE5000-2122 3/4USFCE5000-2152 15/163USFCE5000-3003USFCE5000-3033 3/16USFCE5000-3073 7/16USFCE5000-3083 /2USFCE5000-3113 11/16USFCE5000-3153 15/16USFCE5000-40049153171Housings are ductile iron.* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.194
Flange CartridgeUSFCE 5000AAdapter Mount with Type E DimensionsNomenclatureShaft DiameterJLMNP3 1/23 3/164 1/21 1/164 1/23132 /4573 /64293 /6474 /811 /851/21 /1653 /6454 /16633 /6435 /811 /815 /21/2/163 3/644 31/644 25/646 1/41 1/46 3/85/83 1/81 7/164 1/325 35/645 15/327 1/81 5/167 3/83/43 1/21 1/163 21/325 15/165 13/167 3/42 1/168 1/83/4AB.C.DG6 3/85 3/82 7/16117 /8612 /257 /816 /22 /168 3/47 1/22 9/1610 1/48 5/810 7/89 3/8H*Bolt Size(Inches)USFCE5000A-1151 15/16USFCE5000A-2002USFCE5000A-2032 /16USFCE5000A-2072 7/16USFCE5000A-2082 1/2USFCE5000A-2112 11/16USFCE5000A-2122 3/4USFCE5000A-2152 15/163USFCE5000A-3003USFCE5000A-3033 3/16USFCE5000A-3073 7/16USFCE5000A-3083 /2USFCE5000A-3113 11/16USFCE5000A-3153 15/16USFCE5000A-40049115233/64/81Housings are ductile iron.* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.20
Flange BlockUSF3B 5000Three Bolt Base, Collar MountNomenclatureShaft DiameterAB.C.D5 1/44 1/22 1/4135 1/452 1/413GH*JLMBolt Size/162 25/322 3/42 49/643 15/163/162 25/322 3/42 49/643 15/161(Inches)USF3B5000-1021 1/8USF3B5000-1031 3/16USF3B5000-1041 /4USF3B5000-1061 3/8USF3B5000-1071 7/16USF3B5000-1081 /21* For expansion bearings, this dimension can increase by the corresponding value listed in Table 7 on page 28.21/81/2
Spherical InsertSpherical InsertUSI 5000USI 5000ACollar MountAdapter 607USI5000-608USI5000-615USI5000-7001 1/81 3/161 1/41 3/81 7/161 1/21 11/161 3/41 15/1622 3/162 7/162 1/22 11/162 3/42 15/1633 3/1673 /163 1/23 11/163 15/1644 7/164 1/24 15/165 7/165 15/166 7/166 1/26 15/167Nomenclature1 15/642 3/412 49/643.14931 7/322 7/81 3/642 3/43.34621 17/642 7/81 1/1633.54301 23/643 1/81 9/643 1/43.93671 11/163 3/81 5/1644.72421 23/323 7/81 25/644/325.11802 1/84 15/321 45/645 5/166.29882 13/324 15/161 55/6467.08612 11/166 3/43 3/86 1/27.87403 /643 21/324 25/647 /649 1/329 25/323 /324 33/644 57/6478 1/2109.05519.841911.41674 55/6410 1/25 1/41112.5976212723Note:- 1 1/8 - 4 bore sizes have a single-lock collar.- 4 7/16 - 7 bore sizes have double-lock A-715USI5000A-8001 1/81 3/161 1/41 3/81 7/161 1/21 11/161 3/41 15/1622 3/162 7/162 1/22 11/162 3/42 15/1633 3/1673 /163 1/23 11/163 15/1644 7/164 1/24 15/1655 7/165 15/166 7/166 1/26 15/16771/2157 /168M(Nominal)1 15/643 23/6412 47/643.14931 7/323 29/641 3/642 63/643.34621 17/643 1/21 1/163 3/163.54301 23/643 57/641 9/643 29/643.93671 11/164 5/161 5/163 63/644.72421 23/324 31/641 25/644 25/645.11802 1/85 35/641 45/645 15/326.29882 13/325 15/161 55/645 13/167.08612 11/166 27/642 5/646 11/327.87403 21/647 1/82 27/647 13/649.05513 21/324 25/647 35/648 1 7/322 39/643 1/647 47/648 1/29.841911.41674 55/649 3/83 5/169 11/1612.59765 15/6410 13/323 19/3211 7/6414.173222
Spherical Roller Bearing Life CalculationsThis section outlines the formula used to select bearing size or calculateexpected bearing life for USRB spherical roller bearings.Bearing Symbols for Spherical Life CalculationsSpherical Roller Bearing Life Calculations C Basic Dynamic Rating (lbs.) 1,000,000 rev.P Equivalent Radial Load (lbs.)L10 Rated Life (hrs.)Fa Applied Thrust LoadFr Applied Radial Loadn Speed RPMX Radial FactorY Thrust Factore Geometry RatioShock / Vibration FactorTable 1Steady Loading1.0Light Shock / Vibration0.5Moderate Shock / Vibration0.3Multiply the theoretical life by the above factors todetermine adjusted theoretical life.23
Combined Load Calculation1. Calculate Fa/Fr and compare the value to the “e” value6. If L10 is not acceptable, select another bearing size asfound in Table 2. Fa/Fr must be less than 1.appropriate and recalculate the L10 life. Continue this2. Choose values for “X” and “Y” from Table 2.iterative process until an acceptable L10 is obtained.3. Calculate equivalent load using the following equation:NOTE: Always use (1) fixed and (1) floating spherical rollerP XFr YFa4. Calculate the expected L10 life using the life equation onbearing.page 23.Max. thrust for adapter mount units is C/30 lbs.5. Determine if the calculated L10 meets applicationrequirements.X & Y Values for Combined Loading EquationTable 2Basic Dynamic RatingBasic Static RatingCCoeX1 1/8 – 1 1/220368236090.341 11/16 – 1 3/422689280211 15/16 – 223520299182 3/1628
Spherical Roller Bearings compensates for /-2 of misalignment – up to twice an SAF – while maintaining catalog load ratings and sealing effectiveness. The Sealmaster Mounted Spherical Roller Bearing has a replaceable cartridge insert that consists of a double-row spherical roller bearing
In 1919, SKF invented the spherical roller bearing. SKF has continued to further develop and refine the design, including the way it is sealed. The best proof of the total quality of SKF spherical roller bearings is their success. Twice as many SKF spherical roller bearings are used today as those of any other bearing manufacturer.
Spherical Roller Bearings Spherical Roller Bearings EX SERIES Outer & Inner rings Floating guide ring Provided with a floating guide ring to control the roller movement. Cages Rollers Provided with a high-strength, high-rigidity steel pressed cage to enclose the entire roller. Impact resistance performance has been greatly improved by
{Spherical Roller Bearings {Cylindrical Roller Bearings {Tapered Roller Bearings {Thrust Roller Bearings {Housed Unit Bearings {Ball Bearings {Couplings {Chain DOWNLOAD. Once you have selected a CAD file, download and insert it into your solution.
Spherical plain bearings are divided into two main groups: 1. spherical plain bearings requiring maintenance 2. maintenance free spherical plain bearings Factors reducing the lifetime of spherical plain bearings are for example dirt, humidity and vibrations. For critical applications please contact RBL
NTN spherical plain bearings are classified broadly into the self-lubricating type with a solid PTFE based liner and the lubrication type in which contact between the inner and outer rings is metal-to-metal. 1. Types of Spherical Plain Bearings 1.1 Self-lubricating type spherical plain bearings Self-lubricating spherical plain bearings are .
(RCT bearings), ball screw support bearings, turntable bearings, as well as rectilinear motion bearings (linear ball bearings, linear roller bearings and linear flat roller bearings). A-5 Outerring Inner ring Cage Ball Deep groove ball bearing Fig 1.1 Ball Cage Outer ring Inner ring Angular contact ball bearing Fig. 1.2 Inner ring Outer ring .
cam followers stainless steel needle roller bearings stainless steel roller followers cam followers inner rings needle roller bearings combined needle roller bearings separable needle roller bearings machined ring needle roller bearings stainless steel rna49, rna59, rna69, rna48, nk (p.60-77) na49, na59, na69, na48, nki (p.78-87) rna49uu .
The Project Gutenberg EBook of First Course in the Theory of Equations, by Leonard Eugene Dickson This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org Title: First Course in the Theory of Equations .
