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BRAND: MRC Bearing | MODEL: 7312PJDU | CONDITION: NEW | SKU: 1133422

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Weight: 4.09 lbs UOM: EA

Additional Description



Item Details
Manufacturer: MRC Bearing Service
Weight: 4.09 lbs.
Product Name: 7300-PJD Medium Series Duplex Ball Bearing
Description: Single Row Angular Contact Bearing, 60 mm ID x 130 mm OD x 31 mm Wide, Open, Standard Precision (ABEC 1), Brass / Bronze Cage, Normal Clearance (C0), 40° Contact Angle
Inch/MetricMetric BoreBore TypeRound Bore
I.D.60 mmO.D. [Min]
O.D. [Max]O.D.130 mm
Width [Min]Width [Max]
Width31 mmEnclosureOpen
Rows of BallsSingleMaterialSteel
O.D. TypeStraightBearing TypeAngular Contact
PrecisionStandardRadial Internal Clearance SpecificationNormal Clearance
Ambient Temperature Range [Min]Ambient Temperature Range [Max]
Ball MaterialSteelCage TypeMetal
CapacityStandard CapacityContact Angle40°
Guide TypeLubrication
Outer Ring Width31 mmPrecision LevelStandard (ABEC 1)
Preload LevelNoneSeal MaterialNone
Seal TypeUnsealedSeal Width
Dynamic Load Rating21900 lbfStatic Load Rating [Max]16200 lbf
Ball Dia.Bearing Design
Bore BCage MaterialBrass/Bronze
Collar No.Collar O.D.
Collar WidthCorner Radius [Min]
Eccentric Collar OffsetFillet Radius2 mm
Flange O.D. [Max]Flange O.D.
Flange Width [Max]Flange Width
Flush GroundHousing Shoulder Diameter [Min]
Housing Shoulder Diameter [Max]Housing Shoulder Diameter
Industry Standard Part #Inner Ring O.D.
Inner Ring OffsetInner Ring Width31 mm
Internal DesignUniversal MountingLimiting Speed
Limiting Speed - Grease4900 rpmLimiting Speed - Oil6400 rpm
Limiting Speed - SealedLocking DeviceNo Locking Device
Lube Hole CenterLubricantOil Preservative
Misalignment RangeNo. in SetSingle Bearing
No. of BallsO.D. (B)
Outer RingOuter Ring Inner Diameter
Outer Ring SizePeak Running Torque (mg-mm)
Peak Starting Torque (mg-mm)Pre Lubricant
Preload AmountRadial Internal ClearanceNormal
Radial Load Rating [Max]Radial Rigidity (lbf/µm)
Reference SpeedSeal O.D.
Seal Protection WidthSeating Washer
SeriesSet Screw Offset
Set Screw SizeShaft Shoulder Diameter [Min]
Shaft ToleranceSnap RingNo Snap Ring
Snap Ring O.D.Snap Ring Offset
Snap Ring ThicknessSpecial Features
StampingStatic Thrust Load Rating [Max]
Temperature Range [Min]Temperature Range [Max]450 °F
Use With  
Product Information
MRC angular contact bearings with a PJ suffix have one heavy race shoulder on the outer ring, opposing one heavy race shoulder and on recessed race shoulder on the inner ring. Because of this construction, it is possible for this bearing to incorporate a greater number of balls than a deep groove nonfilling notch bearing. The combination of maximum ball complement, optimum race groove depth, and the 40° contact angle results in high thrust load carrying capacity. 7000-PJ bearings are particularly suitable for positions where the thrust is always present in one direction. It should not be used where the bearing is subjected to radial load only, or combined radial and thrust load where the radial load is predominant. When heavy thrust must be taken in both directions, and angular contact bearing may be mounted in a duplex arrangement with another angular contact bearing or with a 9000-UP split inner ring bearing. 7000-PJ bearings are available with either peressed brass or machined brass, ball centered cages. The low shoulder diameters on the nonthrust sides of inner and outer rings, combined with large clearances between the land diameters and the cage, allow for large quantities of oil to flow through the bearings. The increased oil flow reduces operating temperature and theoretically increases bearing life. ABEC Grade 3 bore tolerances reduce the range of interference fits between the shaft and bearing bore. These tighter tolerances result in closer control of preload and minimize the risk of thermal runaway. 7300-PJ and PJD Series bearings are used for very heavy one-directional thrust loads or combined radial and thrust loads where thrust is predominant.