The Timken Company - UC 300 Wide Inner Ring Ball Bearings - Set Screw Locking

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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

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Unit of Measure

Items	UC305 UC 300 Wide Inner Ring Ball Bearings - Set Screw Locking	UC305-16 UC 300 Wide Inner Ring Ball Bearings - Set Screw Locking	UC306 UC 300 Wide Inner Ring Ball Bearings - Set Screw Locking	UC307 UC 300 Wide Inner Ring Ball Bearings - Set Screw Locking	UC308-24 UC 300 Wide Inner Ring Ball Bearings - Set Screw Locking
Bore Type	N/A Cylindrical bore
Bearing Type	N/A Ball Bearing
Shaft Size d	N/A 25 mm	N/A 1 in	N/A 30 mm	N/A 35 mm	N/A 1 1/2 in
Outside Diameter D	N/A 62 mm2.441 in	N/A 62 mm2.441 in	N/A 72 mm2.835 in	N/A 80 mm3.15 in	N/A 90 mm3.543 in
Outside Ring Width C	N/A 22 mm0.866 in	N/A 22 mm0.866 in	N/A 24 mm0.945 in	N/A 26 mm1.024 in	N/A 28 mm1.102 in
Radius r	N/A 1.1 mm0.043 in	N/A 1.1 mm0.043 in	N/A 1.1 mm0.043 in	N/A 1.5 mm0.059 in	N/A 1.5 mm0.059 in
Groove Position C1	N/A 6 mm0.236 in	N/A 6 mm0.236 in	N/A 6.5 mm0.256 in	N/A 7.5 mm0.295 in	N/A 8 mm0.315 in
Center of Bearing from End S	N/A 15 mm0.591 in	N/A 15 mm0.591 in	N/A 17 mm0.669 in	N/A 19 mm0.748 in	N/A 19 mm0.748 in
Dimension S1	N/A 23 mm0.906 in	N/A 23 mm0.906 in	N/A 26 mm1.024 in	N/A 29 mm1.142 in	N/A 33 mm1.299 in
Set Screw Distance S2	N/A 6 mm0.236 in	N/A 6 mm0.236 in	N/A 6 mm0.236 in	N/A 8 mm0.315 in	N/A 10 mm0.394 in
Set Screw Size	N/A M6×0.75	N/A M6×0.76	N/A M6×0.75	N/A M8×1	N/A M10×1.25
Number of Set Screws	N/A 2
Angle between Set Screws	N/A 120 º
Static Load Rating	N/A 10900 N2450 lbf	N/A 10900 N2450 lbf	N/A 15000 N3372 lbf	N/A 19300 N4339 lbf	N/A 24000 N5395 lbf
Dynamic Load Rating	N/A 21200 N4766 lbf	N/A 21200 N4766 lbf	N/A 26700 N6002 lbf	N/A 33400 N7509 lbf	N/A 40700 N9150 lbf
Material	N/A Bearing Steel
Weight	N/A 0.2 Kg0.5 lb	N/A 0.2 Kg0.4 lb	N/A 0.3 Kg0.6 lb	N/A 0.3 Kg0.7 lb	N/A 0.5 Kg1.1 lb
Locking Device	N/A Set Screw Locking