BALL BEARING UNITS
omBALL BEARING UNITSfy h b e a r i nBALL BEARING UNITS.csg f y hb e ar ingsm.coCAT.NO.3300NIPPON PILLOW BLOCK CO.,LTD.CAT.No.33002007.11.10000DSNIPPON PILLOW BLOCK CO.,LTD.ISO 9001JIS Q 9001QMS AccreditationR004
Ball Bearing Units (contents)Technical sectionTechnical section1 Structure and features .32 Models .63 Selection of units . 16TechnicalsectionPillow type units4 Rating life of bearings . 195 Bearing load . 226 Allowable rotating speed . 297 Operating temperature and bearing specifications . 30Square four-bolt flangetype units8 Strength of housings . 319 Design of shaft and base . 3610 Nomenclature . 41Oval flange type units11 Accuracy and internal clearance . 4312 Materials . 4813 Performance . 5014 Handlings. 52Round flange cartridgetype unitsStamped steel plate flangetype unitsAppendix tableTake-up type units1 Simplified chart of ball bearing unit combinations . 2402 Tightening torques of housings andcast iron cover mounting bolts . 2423 Tightening torques of inner rings andeccentric locking collar set screws . 243Cartridge type units4 Tightening torques of adapter lock nuts (reference) . 2435 Machining dimensions of holes of housing dowel pins . 244Hanger type units6 Dimensional tolerances of shafts . 2467 Dimensional tolerances of housing bores . 2488 Basic tolerance values . 2509 SI unit conversion charts . 251Ball bearing inserts10 Inch-meter conversion chart . 25211 Hardness conversion chart . 25312 Viscosity conversion chart . 254Parts and accessoriesParts andaccessoriesExample of useExampleof useAppendix tableAppendixtable13 Mechanical properties of metal materials (reference) . 25514 Hexagon socket head cap screws(abstract from JIS B 1176) . 25615 Hexagon head bolts (abstract from JIS B 1180) . 25816 Hexagon head nuts (abstract from JIS B 1181) . 26017 Comparison table of Part No. by manufacturers(cylindrical bore type) . 261
Ball Bearing UnitsContentsTechnical section1 Structure and features8 Strength of housings1.1 Structure .38.1 Strength of cast iron housings . 311.2 Features .48.2 Strength of cast steel housings . 358.3 Strength of stamped steel housings . 352 Models8.4 Strength of stainless steel housings . 352.1 Model list .62.2 Models and features .82.3 Units for special use . 143 Selection of units8.5 Strength of die-cast housings . 359 Design of shaft and base9.1 Design of shaft . 369.2 Mounting base design . 393.1 Outline of selection . 163.2 Selection of model specifications . 179.3 Machining of pin hole forlocating housings . 403.3 Selection of bearings froma maintenance viewpoint . 1810 Nomenclature . 414 Rating life of bearings11 Accuracy and internal clearance4.1 Basic rating life and basic load rating . 1911.1 Accuracy of bearings . 434.2 Calculation of rating life . 1911.2 Accuracy of housings . 454.3 Grease life . 2111.3 Internal bearing clearance . 475 Bearing load12 Materials5.1 Loads applied to bearings . 2212.1 Bearing material . 485.2 Distribution of bearing load . 2412.2 Housing material . 485.3 Dynamic equivalent load . 2412.3 Materials of parts and accessories . 495.4 Basic static load rating andstatic equivalent load . 255.5 Example of applied calculation . 2613 Performance13.1 Bearing friction torque . 5013.2 Bearing temperature increase . 506 Allowable rotating speed6.1 Allowable rotating speed . 296.2 Rotational speed adjustment due toshaft fit . 3013.3 Dustproof and waterproof performance. 5114 Handlings14.1 Installation . 527 Operating temperature andbearing specifications14.2 Test run inspection . 5514.3 Periodic inspection . 567.1 Operating temperature range . 3014.4 Supply of grease . 567.2 Operating temperature andinternal clearance of bearings . 3014.5 Replacing bearings . 59
Unit dimensional table15 Dimensional tables forball bearing units . 60Parts and accessories16 Parts and accessories16.1 Part No. of steel plate covers . 2341 Pillow type unitsPillow type units . 6216.2 Part No. of cast iron covers . 235Thick pillow type units . 8616.3 Nominal code and dimensions ofgrease nipples and reducing socket . 236Tapped-base pillow type units . 90High centerheight pillow type units . 92Lightweight pillow type units . 9416.4 Nominal code and dimensions ofAllen key wrench . 236Clean series pillow type units . 96Stainless steel series pillow type units . 9817 Example of use . 237Steel plate pillow type units . 10418 Appendix table (contents) . 2392 Square four-bolt flange type unitsSquare four-bolt flange type units . 106Square four-bolt flange cartridge type units . 124Stainless steel series square four-bolt flangetype units . 1283 Oval flange type unitsOval two-bolt flange type units . 130Adjustable oval two-bolt flange type units . 146Three-bolt flange type units . 148Lightweight oval two-bolt flange type units . 1501 Simplified chart of ball bearing unitcombinations . 2402 Tightening torques of housings andcast iron cover mounting bolts . 2423 Tightening torques of inner rings andeccentric locking collar set screws . 2434 Tightening torques of adapter lock nuts(reference) . 243Clean series oval two-bolt flange type units . 1525 Machining dimensions of holes ofhousing dowel pins . 244Stainless steel series oval two-bolt flangetype units . 1546 Dimensional tolerances of shafts . 2464 Round flange cartridge type units . 1587 Dimensional tolerances of housing bores . 2488 Basic tolerance values . 2505 Stamped steel plate flange type units9 SI unit conversion charts . 251Stamped steel plate round three-bolt flangetype units . 16810 Inch-meter conversion chart . 252Stamped steel plate oval two-bolt flangetype units . 17011 Hardness conversion chart . 25312 Viscosity conversion chart . 2546 Take-up type unitsTake-up type units . 172Stainless steel series take-up type units . 188Section steel frame take-up type units . 190Channel steel frame take-up type units . 192Steel plate frame take-up type units . 1987 Other unitsCartridge type units . 202Hanger type units . 2088 Ball bearing inserts . 2109 Bearing adapters . 23013 Mechanical properties of metal materials(reference) . 25514 Hexagon socket head cap screws(abstract from JIS B 1176) . 25615 Hexagon head bolts(abstract from JIS B 1180) . 25816 Hexagon head nuts(abstract from JIS B 1181) . 26017 Comparison table of Part No. bymanufacturers (cylindrical bore type) . 261
FYH BALL BEARING UNITSCATALOG. NO. 3300We produce a broad range of mounted bearings from small lightweight units to large heavyduty units to meet a wide variety of industries and applications worldwide.The Ceraball Bearing Series, a revolutionary style of bearing, was started by our uniqueidea of combining the highest grades of ceramic and steel, and now meets various needs inleading Japanese biochemical industries, information technology, aerospace, automotivemanufacturing, and ocean development businesses.This catalog introduces a section of “Ceraball Bearings for special environments”. Webelieve this new line will help to reduce bearing maintenance as well as minimize maintenancecosts and downtime.The contents of this catalogue are subject to change without prior notice. Everypossible effort has been made to ensure that the data listed in this catalog is correct. However, we can not assume responsibility for any errors or omissions.All rights reserved.
1 Structure and featuresFYH Ball Bearing Units are manufactured to exactingstandards comprising grease sealed deep groove ball bearings and housings in various forms. Self-aligning units allowfor easy installation and are supplied with grease nipples inorder to facilitate quick and convenient re-lubrication.1.1 StructureFYH Ball Bearing Units are constructed of hig-h carbonchromium bearing steel and have precision honed raceways and riveted steel cages (Fig. 1.1).Grease nippleOuter ring with spherical outside surfaceGrease holeSlingerSealBall and cageWide inner ringHexagon socket set screwHousing (pillow-type)LLsealseal unitFig. 1.1Structure of ball bearing units (representative example)3
1 Structure and features1 Supreme load capacity and accuracyFYH Ball Bearing Units feature an internal structureidentical to single row deep groove ball bearings andbear significant radial load, as well as a great deal ofaxial load in both directions. The hardened steel ballsexhibit a high degree of “roundness” and the races arehighly polished to accommodate a smoother ride at awide range of speeds.2 Rational self-aligning mechanism and optimal fitFYH Ball Bearing Units have the special ability to selfalign inside the housing because of the spherical shapeof the outer diameter of the bearing insert and the concave shape of the inner diameter of the housing intowhich it fits. This design allows the bearing unit to selfadjust for shaft deviation and thereby eliminate abnormalbearing load. Therefore, the original rated life of thebearing can be guaranteed.Since the spherical outside surface of the bearing isprecision ground and the spherical bore of the housing ismachined by a boring machine with great accuracy,optimal fitting of the bearing and the housing can beobtained, as well as superior aligning performance.The allowable aligning angle of standard ball bearingunits is 3º, while units with covers is 1º.AligningangleFig. 1.2AligningangleAllowable aligning angle of ballbearing unitsStandard typeTriple lip seal type(Suffix code : L3)Steel plate cover typeCast iron cover type(Accessory code : C)(Accessory code : C, FC)(Accessory code : CD)(Accessory code : CD, FCD)Open typeFYH Ball Bearing Units have many features and areavailable in various models. A wide selection of mountedunits is offered to fit virtually any application.3 Superior sealing performanceFYH Ball Bearing Units efficiently prevent grease fromleaking out of the interior of the bearing, and performextremely well at keeping contaminates, such as dustand water, from entering. This is achieved by installingthe seal to the outer ring of the bearing and installing theslinger to the inner ring of the bearing.The seal is made of synthetic rubber with supreme oilproof characteristics, and the lip of the seal contacts withthe inner ring of the bearing with optimal tension.When operating in moist or dusty environments, thetriple lip seal unit (suffix code : L3) or a covered unit(accessory code : C, CD, FC, FD) is recommended.The triple lip seal unit or unit with cover helps preventingress of water and dust from the outside, and extendsthe rated life of the bearing.Open & Closed type1.2 FeaturesUnit with coversFig. 1.34Sealing mechanism of ball bearingunits
4 Simple lubricationFYH Ball Bearing Units are tapped to accept a greasenipple which is also supplied with every mounted unit.Bearings are pre-lubricated at the factory and do notrequire additional grease upon installation. When operating in excessively moist, dusty, or hot environments it isrecommended that grease be supplied at regular intervals. If appropriately maintained, the rated life of thebearing can be extended.The grease nipples that are supplied with FYHmounted units include 1/4-28 for smaller units and 1/8 PTfor larger units. Additional styles are available uponrequest.5 Highly rigid and rugged cast iron housingsFYH Ball Bearing Units housings are designed so thatthey are optimized for reduction of deformation due tocentralization of stress and load. Only the best material isselected to be cast by a highly advanced technique orpress working technique, depending on the housing.Since any abnormal load on the bearing is eliminatedby the housing, the life of the bearing can be extended. Aspecial baked on coating helps resist corrosion andprotect the surface of the housing for an extended periodof time.7 Series and modelsFYH Ball Bearing Units are available in various seriesand models.Reliability of machinery or equipment, used togetherwith these units, can be improved by selecting and usingunits optimal for the application and operating conditions. Triple seal bearing series Unit with cover seriesWater, dust, and debris protection Heat and cold resistant series Clean seriesCompact, lightweight, and corrosion resistant Stainless steel seriesCorrosion resistant Cast steel seriesRugged housings Ceraball seriesAbility to withstand severe environments, exposureto water, chemicals, high temperature, or high speed6 Simple installation and handlingFYH Ball Bearing Units interchange with many different models and can be bolted to machinery without anymodification. The exact amount of clearance is allowedbetween the bore and the shaft to allow a perfect fit.Therefore, FYH Ball Bearing Units do not require anyadditional lubrication or seal installation. As a result,handling and downtime can be drastically reduced.Three different locking mechanisms are available :(1) set screw(2) eccentric locking collar(3) tapered adapterMounting the bearing to the shaft can be executedeasily and securely by adopting any of these methods.5
2 Models2 Models2.1 Model listTable 2.1 and Table 2.2 show the models of FYH BallBearing Units and ball bearing inserts.Table 2.1Model1 Pillow typeType(1) StandardFYH Ball Bearing Units modelsBearing bore dia. Surface(fixing to shaft)/2 2 /1612 75P.68NAPK1/2 2 /1612 75P.70UKP3/4 4 1/220 125P.72Cylindrical bore (with set screws)UCP-sc7/8 425 140P.78Tapered boreUKP-sc3/4 4 1/220 125P.82(with adapter)(with adapter)1515Cylindrical bore (with set screws)UCIP1 1/2 440 140P.86Tapered boreUKIP1 1/4 4 1/235 125P.88/2 212 50P.90/2 212 50P.92/2 1 9/1612 40P.94P.96(with adapter)UCPA1(5) High centerheight typeCylindrical bore (with set screws)UCPH1(6) Lightweight typeCylindrical bore (with set screw locking)BLPCylindrical bore(with eccentric locking collar)ALP1(7) Clean seriesCylindrical bore (with set screws)UPN/A10 30(8) Stainless steel seriesCylindrical bore (with set screws)UCSP-H1S6N/A20 50P.98UCSPA-H1S6N/A20 40P.100USP-S6N/A10 30P.102/2 1 1/412 30P.104/2 412 140P.106/2 3 7/1612 85P.112/2 2 7/1612 60P.116/4 4 1/220 125P.1181 425 140P.124/4 4 1/220 125P.126N/A20 50P.128/2 412 130P.130/2 3 1/412 85P.136/2 2 /1612 55P.140/ 4 4 /220 115P.142/2 2 3/1612 55P.146/2 212 50P.148/2 1 7/1612 35P.150(1) StandardCylindrical bore (with set screw locking)SBPPCylindrical bore(with eccentric locking collar)SAPPCylindrical bore (with set screws)UCF1UCF-E1Cylindrical bore(with eccentric locking collar)NANF1Tapered boreUKF3(with adapter)1Cylindrical bore (with set screws)UCFSTapered boreUKFS(with adapter)3(3) Stainless steel seriesCylindrical bore (with set screws)UCSF-H1S6(1) Two-bolt typeCylindrical bore (with set screws)UCFL1UCFL-E1NANFL1UKFL3(2) Adjustable oval two-bolt typeCylindrical bore (with set screws)UCFA1(3) Three-bolt typeCylindrical bore (with set screws)UCFB1(4) Lightweight two-bolt typeCylindrical bore (with set screw locking)BLFCylindrical bore(with eccentric locking collar)ALFTapered bore(with adapter)311(5) Clean series two-bolt typeCylindrical bore (with set screws)UFLN/A8 30P.152(6) Stainless steel series twobolt typeCylindrical bore (with set screws)UCSFL-H1S6N/A20 50P.154Cylindrical bore (with set screws)UCFC4 Round flangecartridge typeN/A10 30P.156/2 412 100P.1581 425 100P.1623/4 3 1/220 90P.1641/2 1 7/1612 35P.1681/2 1 7/1612 35P.170USFL-S61UCFCX-ETapered bore(1) Round three-bolt flange type(2) Oval two-bolt flange type6P.62NAPCylindrical bore(with eccentric locking collar)5 Stamped steelplate flange type12 140/2 4Cylindrical bore (with set screws)(2) Piloted cartridge flange type3 Oval flange typeDimensiontable1(4) Tapped-base type(9) Steel plate type2 Square four-boltflange type(mm)1Tapered bore(3) Thick type(inch)UCPCylindrical bore (with set screws)Cylindrical bore(with eccentric locking collar)(2) Cast steel typeShaft dia.Model code(with adapter)UKFCCylindrical bore (with set screw locking)SBPFCylindrical bore(with eccentric locking collar)SAPFCylindrical bore (with set screw locking)Cylindrical bore(with eccentric locking collar)SBPFLSAPFL
Table 2.1Model6 Take-up typeFYH Ball Bearing Units models (continued)Bearing bore dia. Surface(fixing to shaft)Type(1) StandardCylindrical bore (with set screws)Tapered bore(with adapter)Shaft dia.Model code(inch)DimensiontableUCT1/2 412 140P.172UCT-E1/2 3 7/1612 85P.178UKT3/4 4 1/220 125P.182N/A20 50P.188(2) Stainless steel seriesCylindrical bore (with set screws)UCST-H1S6(3) Section steel frame typeCylindrical bore (with set screws)UCTH(4) Channel steel frame typeCylindrical bore (with set screws)UCTLUCTUN/A40 90P.194(5) Steel plate frame typeCylindrical bore (with set screws)SBPTHN/A12 25P.198N/A12 25P.200Cylindrical bore (with set screws)UCC1/2 412 140P.202Tapered boreUKC3/4 4 1/220 125P.206UCHA1/2 312 75P.2081SBNPTH7 Cartridge type8 Hanger type(with adapter)Cylindrical bore (with set screws)Table 2.2ModelBall bearinginserts(mm)Type/2 2 1/212 65P.190N/A20 45P.192Bearing insert modelsBearing bore dia. Surface(fixing to shaft)Shaft dia.Model code(inch)(mm)Dimensiontable(1) StandardCylindrical bore (with set screws)UC1/2 412 140P.210(2) StandardTapered bore(with adapter)UK3/4 4 1/220 125P.218(3) StandardCylindrical bore(with eccentric locking collar)NA1/2 312 75P.224SB1/2 1 /212 40P.210SA1/2 1 /1612 40SA-F1/2 2 3/1612 55(4) LightweightCylindrical bore (with set screws)(5) LightweightCylindrical bore(with eccentric locking collar)19(6) CleanCylindrical bore (with set screws)SUN/A8 30(7) Stainless steelCylindrical bore (with set screws)UC-S6N/A20 50SU-S6N/A10 30(8) Cylindrical outside surface(with lubricating mechanismand snap ring)Cylindrical bore (with set screws)(9) Cylindrical outside surfaceCylindrical bore (with set screws)(10) AdapterER1/2 2 7/16RB1/2 1 9/16H300XH2300X3/4 33/4 4 1/2P.224P.210P.21612 60P.22812 40P.22820 8020 125P.2307
2 ModelsNote 1) Descriptions of codes for units with covers are shownin the table below. (common to all the models)2.2 Models and featuresFYH Ball Bearing Units are available in a variety of stylesand sizes.Models and features of the Ball Bearing Units are shownbelow.Diameter series2CodeC, CDDescriptionsStamped steel plate cover typeFC, FCDCast iron cover typeXC, CDFrom X05 to X17 : stamped steel plate cover typeX18 and X20 : cast iron cover type3C, CDCast iron cover type1 Pillow type units1 Pillow type units : P.62UCP3 Tapped-base pillow type units : P.90UCPACylindrical bore (with set screws)L34 High centerheight pillow type units : P.92UKPCylindrical bore (with set screws)L3C, CD (FC, FCD)1)Cylindrical bore (with eccentric locking collar)Tapered bore (with adapter)L3C, CD (FC, FCD)1)UCPHCylindrical bore (with set screws)L32 Thick pillow type units : P.865 Lightweight pillow type units : P.94UCIPBLPALPCylindrical bore (with set screw locking)Cylindrical bore (with eccentric locking collar)6 Clean series pillow type units : P.96UKIPCylindrical bore (with set screws)L3C, CD (FC, FCD)1)Tapered bore (with adapter)L3C, CD (FC, FCD)1)8UPCylindrical bore (with set screws)C, CD : Rubber coating cover type
7 Stainless steel series pillow type units : P.98UCSP-H1S62 Square four-bolt flange cartridge type units : P.124USP-S6UCFSUKFSCylindrical bore (with set screws)L3C, DTapered bore (with adapter)L3C, DUCSPA-H1S6Cylindrical bore (with set screws)C, CD : Stainless steel plate cover typeCompactC, CD : Rubber coating cover type3 Stainless steel series square four-boltflange type units : P.1288 Steel plate pillow type units : P.104UCSF-H1S6Cylindrical bore (with set screws)C, D : Stainless steel plate cover typeSBPPSAPPCylindrical bore (with set screw locking)Cylindrical bore (with eccentric locking collar)3 Oval flange type units1 Oval two-bolt flange type units : P.1302 Square four-bolt flange type units1 Square four-bolt flange type units : P.106UCFLUCFUKFCylindrical bore (with set screws)L3C, D (FC, FD)1)Cylindrical bore (with eccentric locking collar)Tapered bore (with adapter)L3C, D (FC, FD)1)UKFLCylindrical bore (with set screws)L3C, D (FC, FD)1)Cylindrical bore (with eccentric locking collar)Tapered bore (with adapter)L3C, D (FC, FD)1)9
2 Models(3 Oval flange type units)2 Adjustable oval two-bolt flange type units : P.1466 Stainless steel series oval two-bolt flangetype units : P.154UCFACylindrical bore (with set screws)L33 Three-bolt flange type units : P.148UCSFL-H1S6USFL0-S6Cylindrical bore (with set screws)C, D : Stainless steel cover typeCompactC, D : Rubber coating cover type4 Round flange cartridge type unitsRound flange cartridge type units : P.158UCFBCylindrical bore (with set screws)L34 Lightweight oval two-bolt flange type units : P.150UCFCUKFCCylindrical bore (with set screws)L3C, D (FC, FD)1)Tapered bore (with adapter)L3C, D (FC, FD)1)5 Stamped steel plate flange type unitsBLFALFCylindrical bore (with set screw locking)Cylindrical bore (with eccentric locking collar)1 Stamped steel plate round three-boltflange type units : P.1685 Clean series oval two-bolt flange type units : P.152SBPFSAPFCylindrical bore (with set screw locking)Cylindrical bore (with eccentric locking collar)UFLCylindrical bore (with set screws)C, D : Rubber coating cover typeAs for the descriptions of Note 1), see page 8.10
3 Section steel frame take-up type units : P.1902 Stamped steel plate oval two-boltflange type units : P.170SBPFLSAPFLUCTHCylindrical bore (with set screw locking)Cylindrical bore (with eccentric locking collar)Cylindrical bore (with set screws)L3C, CD (FC, FCD)1)6 Take-up type units1 Take-up type units : P.172UCT4 Channel steel frame take-up type units : P.192UKTCylindrical bore (with set screws)L3C, CD (FC, FCD)1)Tapered bore (with adapter)L3C, CD (FC, FCD)1)UCTLCylindrical bore (with set screws)L3C, CD (FC, FCD)1)5 Steel plate frame take-up type units : P.1982 Stainless steel series take-up type units : P.188SBPTHUCST-H1S6SBNPTHCylindrical bore (with set screws)Cylindrical bore (with set screws)C, CD : Stainless steel plate cover typeAs for the descriptions of Note 1), see page 8.11
2 Models8 Ball bearing inserts7 Other units1 UC type bearing : P.2101 Cartridge type units : P.202UCCUKCCylindrical bore (with set screws)L3Tapered bore (with adapter)L3UCCylindrical bore (with set screws)L32 UK type bearing : P.2182 Hanger type units : P.208UKUCHACylindrical bore (with set screws)L3Tapered bore (with adapter)L33 NA type bearing : P.2243 Ceraball bearing seriesNACylindrical bore (with eccentric locking collar)Cylindrical bore (with set screws)UC2 (X, 3).Y1 typeUC2 S6.Y2 type4 SB type bearing : P.210SBCylindrical bore (with set screws)12
5 SA type bearing : P.224SASA-FCylindrical bore (with eccentric locking collar)6 SU type bearing (clean series) : P.210SUCylindrical bore (with set screws)7 ER bearing inserts : P.228ERCylindrical bore (with set screws),cylindrical outside surface, lubricating mechanism,set screw8 RB bearing inserts : P.228RBCylindrical bore (with set screws),cylindrical outside surface13
2 Models2.3 Units for special useTo meet customer requests for bearings with specialpurposes FYH offers a variety of bearing options to meettheir needs. Various features allow FYH bearings to work inmany non-standard environments and conditions.The following information shows some of the ways FYHcan offer solutions to your non-standard bearing needs.1 LⅢ (L3) unitsThe triple lip seal is composed of a three lip seal gluedto the steel shield plate with vulcanized adhesive. Thetriple lip seal prevents dust, mud, & water from accessingthe raceway of the bearing. The triple lip ensures longbearing life in even the most severe environmental conditions.The L3 seals are fit to the outer ring of the bearing anddo not require the insert to be handled any differentlythan a standard model. The L3 seal allows for the sameamount of misalignment as a standard insert. The L3seal retains its’ sealing performance for the life of theunit.The L3 unit is helpful in keeping contaminant out of theinsert, prolonging life and minimizing bearing changeouts. The L3 insert in available in the UC series as wellas the UK series.block where shafting will not pass through. The covershelp ensure that dust and other environmental contaminants will not reach the insert. The covers help improvethe rating life of bearing units where conditions havecaused other bearings to fail.Open pressed steel covers use C, open cast ironcovers use FC. Closed covers use D for pressed steeland FD for the cast iron type. Pillow blocks can havecovers on both sides, and can come in open/open oropen/closed designs.Steel plate cover typeOpen & closed typeOpen typeCast iron cover typeOpen typeFig. 2.2Open & closed typeModel and structure of units with cover3 High temperature / Low temperature units(accessory code high temperature D1K2re-lube, D9K2 pre-lube low temperature D2K2)Fig. 2.1Structure of LⅢ units2 Units with covers (accessory code C, D, FC, FD)Covers can be fitted onto most types of housings withsome machining necessary. The covers come in bothpressed steel type as well as cast iron. Covers are available in open and closed designs. The open design has ahole with a rubber seal that allows shafting to passthrough it. The closed design would be used on a pillowTable 2.3CategorySpecial codeFor applications that require bearing units to be usedat a higher or lower temperature range than our standardmodels FYH offers several options. For high temperatureunits that require lubrication please specify D1K2 type ofinserts. For high temperature units that do not requirelubrication specify D9K2. The D9K2 insert uses a fluorogrease, that allows for high heat resistance and operationfor a long period of time. Specifications of the high temperature and low temperature grease units are shown inTable 2.3.Specifications of heat resistant units and cold resistant unitsOperating temperatureGreaseSeal rubber materialOrdinary(no code) 20 to 100Stainless steelHeat resistantHeat resistantHeat resistantCold resistantS6D1K2D9K2D9P4D2K2 20 to 100 40 to 180 20 to 220 20 to 250 50 to 120Alvania No.2, Gold No.3A orequivalence (lithium soap)BEL. RAY NO TOXHD2TCSH44M (lithium soap)DemnumL-200 (fluorinated grease
fy h b e a r i n g s. c o m fyh b e a r i n g s . c o m NIPPON PILLOW BLOCK CO.,LTD. NIPPON PILLOW BLOCK CO.,LTD. CAT.NO.3300 BALL BEARING UNITS CA
SXV and SXR Ball Bearing Take-Up Bearing from 3/4” through 2-7/16” shaft size. DL Ball Bearing Take-Up Bearing from 3/4” through 1-7/16” shaft size. LT700 and LT1000 SOLlDLUBE Take-Up Bearing from 3/4” through 2-1/2” shaft size. Six sizes of Wide Slot Ball Bearing
Ball Screw Selection White Paper Ball Screw Basics A ball screw assembly consists of a ball screw and a ball nut with recirculating ball bearings. (Figure 1) The interface between the screw and the nut is made by ball bearings that roll in matching forms in the ball screw and ball nut. The load on the ball screw
cooper bearing craft du bearing dual vee economy bushing edt elges fag bearing federal bronze fk bearing frantz bearing fyh bearing general bearing ggb bearing tech graphalloy hepco hiwin hub city hudson bearing hyatt
Table 3.1 and Table 3.2 shows the models of FYH Ball Bearing Units and ball bearing inserts. Table 3.1 FYH Ball Bearing Units models Model Type Bearing bore dia. Surface (fixing to shaft) Model code Shaft dia. Dimension table (inch) (mm) min. max. min. max. 1 Pillow Block Units (1)
(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 .
Spherical Roller Bearing Units FYH Ball Bearing Units are manufactured to exacting standards comprising of grease sealed deep groove ball bearings and housings in various forms. Self-aligning units allow for easy installation and are supplied with grease fittings. Double contact seal w
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2 NH Norma Hoffmann Bearing Corporation - U.S.A. NICE Nice Ball Bearing Co. - Div. SKF Industries - U.S.A. NMB Nippon Miniature Bearing Co. Ltd. – Japan NSK NSK Bearing Corp. - Japan NTN NTN-Toyo Bearing Co. Ltd. - Japan RBC Roller Bearing Co. of America - U.S.A. RHP Ransome Hoffmann Pollard Ltd. - England 1 R&a
