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●   The UC wide inner ring ball bearing uses a popular set screw locking mechanism and is suggested for industrial applications where heavy loads are encountered.
●   The set screw mounting feature is ideal for reversing load applications.
●   Bearing prelubricated and ready for immediate installation.
●   The wide inner ring provides effective shaft support for a broad range of industrial applications.
●   The positive contact of the land-riding bonded nitrile seal helps protect against harmful contaminants and retains lubricant under severe operating conditions.
●   An external steel flinger provides additional protection from contamination.
●   The UC series features superfinished raceways, grade-10 balls for smooth running and low noise operation.
●   UC series wide inner ring ball bearings have spherical outside diameters for use in housings with corresponding spherical
Mounted Bearings_U-Series_UC305
Mounted Bearings-U-Series-UC-Line-Drawing
Unit of Measure
1 2 

Part Number

Shaft Size d

Outside Diameter

Total Width

Static Load Rating

Dynamic Load Rating

CAD

UC305 N/A N/A 2.441 in N/A 1.496 in N/A 10900 N2450 lbf N/A 21200 N4766 lbf N/A CAD Icon (for items table)
UC305-16 N/A 1 in N/A 2.441 in N/A 1.496 in N/A 10900 N2450 lbf N/A 21200 N4766 lbf N/A CAD Icon (for items table)
UC306 N/A N/A 2.835 in N/A 1.693 in N/A 15000 N3372 lbf N/A 26700 N6002 lbf N/A CAD Icon (for items table)
UC307 N/A N/A 3.15 in N/A 1.890 in N/A 19300 N4339 lbf N/A 33400 N7509 lbf N/A CAD Icon (for items table)
UC308-24 N/A 1 1/2 in N/A 3.543 in N/A 2.047 in N/A 24000 N5395 lbf N/A 40700 N9150 lbf N/A CAD Icon (for items table)
UC308 N/A N/A 3.543 in N/A 2.047 in N/A 24000 N5395 lbf N/A 40700 N9150 lbf N/A CAD Icon (for items table)
UC309-28 N/A 1 3/4 in N/A 3.937 in N/A 2.244 in N/A 29500 N6632 lbf N/A 48900 N10993 lbf N/A CAD Icon (for items table)
UC309 N/A N/A 3.937 in N/A 2.244 in N/A 29500 N6632 lbf N/A 48900 N10993 lbf N/A CAD Icon (for items table)
UC310 N/A N/A 4.331 in N/A 2.402 in N/A 38300 N8610 lbf N/A 62000 N13938 lbf N/A CAD Icon (for items table)
UC311-32 N/A 2 in N/A 4.724 in N/A 2.598 in N/A 45000 N10117 lbf N/A 71600 N16096 lbf N/A CAD Icon (for items table)
UC311 N/A N/A 4.724 in N/A 2.598 in N/A 45000 N10117 lbf N/A 71600 N16096 lbf N/A CAD Icon (for items table)
UC311-35 N/A 2 3/16 in N/A 4.724 in N/A 2.598 in N/A 45000 N10117 lbf N/A 71600 N16096 lbf N/A CAD Icon (for items table)
UC312 N/A N/A 5.118 in N/A 2.795 in N/A 52200 N11735 lbf N/A 81900 N18412 lbf N/A CAD Icon (for items table)
UC312-39 N/A 2 7/16 in N/A 5.118 in N/A 2.795 in N/A 52200 N11735 lbf N/A 81900 N18412 lbf N/A CAD Icon (for items table)
UC313-40 N/A 2 1/2 in N/A 5.512 in N/A 2.953 in N/A 59900 N13466 lbf N/A 92700 N20840 lbf N/A CAD Icon (for items table)
UC313 N/A N/A 5.512 in N/A 2.953 in N/A 59900 N13466 lbf N/A 92700 N20840 lbf N/A CAD Icon (for items table)
UC314-44 N/A 2 3/4 in N/A 5.906 in N/A 3.071 in N/A 68200 N15332 lbf N/A 104000 N23380 lbf N/A CAD Icon (for items table)
UC314 N/A N/A 5.906 in N/A 3.071 in N/A 68200 N15332 lbf N/A 104000 N23380 lbf N/A CAD Icon (for items table)
UC315-47 N/A 2 15/16 in N/A 6.299 in N/A 3.228 in N/A 77200 N17355 lbf N/A 113000 N25404 lbf N/A CAD Icon (for items table)
UC315 N/A N/A 6.299 in N/A 3.228 in N/A 77200 N17355 lbf N/A 113000 N25404 lbf N/A CAD Icon (for items table)
UC315-48 N/A 3 in N/A 6.299 in N/A 3.228 in N/A 77200 N17355 lbf N/A 113000 N25404 lbf N/A CAD Icon (for items table)
UC316 N/A N/A 6.693 in N/A 3.386 in N/A 86700 N19491 lbf N/A 123000 N27652 lbf N/A CAD Icon (for items table)
UC317 N/A N/A 7.087 in N/A 3.78 in N/A 96800 N21762 lbf N/A 133000 N29900 lbf N/A CAD Icon (for items table)
UC318-56 N/A 3 1/2 in N/A 7.480 in N/A 3.78 in N/A 107000 N24055 lbf N/A 143000 N32148 lbf N/A CAD Icon (for items table)
UC318 N/A N/A 7.480 in N/A 3.78 in N/A 107000 N24055 lbf N/A 143000 N32148 lbf N/A CAD Icon (for items table)
Unit of Measure
1 2