NS-289-5

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Engineering DataHigh Grade Cast Iron HousingsDrilled & Tapped Zerk Fitting HolePrecision Ground & Super-Finished RacewaysSteel Slinger OverRST Tight Riding, Full Cover,Metal Shroud SealGrade 10 BallsRivited, Steel RetainerSold Base Housing DesignNylon Patched, Class 3A Set Screws122
Engineering DataA. Construction and features of ball bearing mounted units.PEER mounted ball bearing units consist of a double sealed, single row, deep groove ball bearing and any one ofmany types of housings. The outer ring of the self-contained ball bearing is ground to a sphere along with thematching bore of the corresponding housing to provide self alignment capabilities. Cylindrical outer ring ballbearings are also available.A. Figure 1 shows a cut away view of a standard 2-Bolt flangewith set screw locking (UC series shown).B. Figure 2 shows a cut away view of a standard pillow blockhousing with an eccentric locking collar bearing (HC Series shown).C. Figure 3 shows a cut away view of a standard pillow block housingwith a Grip-It locking bearing (GR Series).Figure 2Figure 1B. Typical features of PEER ball bearing mounted units.Figure 3(1) Internal construction of single row deep groove bearings in mounted units.The ball bearings used in mounted units are quite similar to the 6200 and 6300 series of single row, deep groove, radial ball bearings. These bearings aredesigned to operate under radial and to a lesser degree thrust loads and combined loads. They have considerably greater load carrying capacity than doublerow, self aligning bearings used in some other types of mounted units.(2) Bearing materials.52100 Bearing Grade Steel.PEER bearings inner ring, outer ring and balls are made of 52100 vacuum degassed steel. This high quality steel coupled with precision grinding and superfinishing techniques increases bearing life and reduces bearing noise.Stainless SteelPEER Bearing Company’s line of stainless steel bearings are designed to meet the demanding requirements of the FDA and USDA where wash-down and corrosionresistance are necessary. The full stainless steel bearings provide contamination and corrosion protection for long life.ComponentRingsBallsRetainerSlingersSet ScrewsSealsGreaseMaterialGrade 440 Stainless SteelGrade 440 Stainless SteelGrade 304 Stainless SteelGrade 304 Stainless SteelGrade 304 Stainless SteelSilicone (Si)FDA Approved.(3) Seals used on standard 52100 bearings. (See representative drawings on page 85)PEER offers a multitude of bearing seal designs allowing users to select the one that is best suitable for their particular application.a) The most common seal design is the PEER “R” seal. This incorporates a full shroud contact seal with rubber lip and slinger assuring positive dirt exclusion.The inboard contact seal is staked securely to the outer ring and the curved Buna-N rubber lip seals along the outside of the inner ring. The metal slinger isattached to the outside of the inner ring creating a complex path for contaminants to enter the bearing.b) The PEER “RST” seal is similar to the contact seal used in the “R” seal design but without the slinger. It has a full cover shroud and positive rubber lipcontact to the inner ring.c) The PEER “TRL” triple lip seals are full cover shroud style with three individual wiping lips for the most complete protection against contaminants.Engineering123
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GRIP-ITMEANS LONGER LASTING,IMPORTA
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Air Handling Mounted Units for use
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PEER offers a wide range ofAgricult
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Corrosion Resistant Mounted Units..
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Inner RingInner RingOuter RingOuter
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Flange Units - Standard 4 BoltUCF20
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Flange Units - Medium Duty 4 BoltUC
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Flange Units - Standard 4 BoltHCFS2
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Flange Units - Ductile 4 BoltFHF4X2
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Page 54 and 55: Inner RingInner RingOuter RingOuter
Page 74 and 75: P78_100 new++ 2010.1.27 2:02 AM Pag
Page 86 and 87: All Stainless Steel Pillow Block Un
Page 88 and 89: All Stainless Steel Flange Units 4
Page 90 and 91: All Stainless Steel Flange Units 2
Page 92 and 93: Thermoplastic Pillow BlocksSUCP200-
Page 94 and 95: Thermoplastic Flange 4 BoltSUCF200-
Page 96 and 97: Thermoplastic Flange 2 BoltSUCFT200
Page 98 and 99: Electroless Nickel plated...for mod
Page 100 and 101: Zinc Chromate Plated Insert Bearing
Page 102 and 103: Stainless Steel or Zinc Plated Inse
Page 106 and 107: Engineering Datad) The PEER “DBL
Page 108 and 109: Engineering DataC. Tolerances1. Tol
Page 110 and 111: Engineering Data2. Tolerances for c
Page 112 and 113: Engineering Data2.4 Tolerances for
Page 114 and 115: Engineering Data2.6 Tolerances for
Page 116 and 117: Engineering Data4.1 Suggested shaft
Page 118 and 119: Engineering DataCylindrical bore be
Page 120 and 121: Engineering DataCylindrical bore be
Page 122 and 123: Engineering Data5.4 Grease types.PE
Page 124 and 125: Engineering DataE. Load Capacity an
Page 126 and 127: Engineering Data2.2 Static load rat
Page 128 and 129: Engineering Data2.5 Calculating App
Page 130 and 131: 2-Bolt Flanges3-Bolt Flanges4-Bolt
Page 132 and 133: Rubber Cartridge UnitsTake-UpUnitsH
Page 134: USAPEER Bearing Headquarters2200 No
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NS-289-5

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