The Timken Company - UCF 300 Four-Bolt Flanged Mounted Bearings - Set Screw Locking

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● UCF four-bolt flanged units are suggested for industrial applications where heavy loads are encountered.
● Each unit comes assembled and ready for mounting, using bolts through the flange.
● These units use wide inner ring ball bearings with self-aligning spherical outside diameters that compensate for shaft misalignment.
● Timken UCF series Mounted Bearings feature the Timken set screw locking (UC) bearing insert.
● Bearing prelubricated and ready for immediate installation.
● Grease fitting supplied for relubrication.
● The bonded seal design is well-suited for applications involving wet or dirty environments.
● Bolt-hole spacing dimensions and shaft center location are interchangeable with competitive units.
● Housing designed for ease of bearing replacement.

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Unit of Measure

Items	UCF305 UCF 300 Four-Bolt Flanged Mounted Bearings - Set Screw Locking	UCF305-16 UCF 300 Four-Bolt Flanged Mounted Bearings - Set Screw Locking	UCF306 UCF 300 Four-Bolt Flanged Mounted Bearings - Set Screw Locking	UCF307 UCF 300 Four-Bolt Flanged Mounted Bearings - Set Screw Locking	UCF308-24 UCF 300 Four-Bolt Flanged Mounted Bearings - Set Screw Locking
Bearing Number	N/A UC305	N/A UC305-16	N/A UC306	N/A UC307	N/A UC308-24
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
Locking Style	N/A Set Screw Locking
Housing Construction	N/A Four-Bolt Square Flange
Total Length L	N/A 110 mm4.331 in	N/A 110 mm4.331 in	N/A 125 mm4.921 in	N/A 135 mm5.315 in	N/A 150 mm5.906 in
Housing Width A	N/A 29 mm1.142 in	N/A 29 mm1.142 in	N/A 32 mm1.26 in	N/A 36 mm1.417 in	N/A 40 mm1.575 in
Bolt Hole Spacing J	N/A 80 mm3.15 in	N/A 80 mm3.15 in	N/A 95 mm3.74 in	N/A 100 mm3.937 in	N/A 112 mm4.409 in
Bolt Hole Size N	N/A 16 mm0.63 in	N/A 16 mm0.63 in	N/A 16 mm0.63 in	N/A 19 mm0.748 in	N/A 19 mm0.748 in
Flange Thickness A1	N/A 13 mm0.512 in	N/A 13 mm0.512 in	N/A 15 mm0.591 in	N/A 16 mm0.63 in	N/A 17 mm0.669 in
Center of Bearing from Housing End A2	N/A 16 mm0.63 in	N/A 16 mm0.63 in	N/A 18 mm0.709 in	N/A 20 mm0.787 in	N/A 23 mm0.906 in
Inner Ring Width B	N/A 38 mm1.496 in	N/A 38 mm1.496 in	N/A 43 mm1.693 in	N/A 48 mm1.890 in	N/A 52 mm2.047 in
Center of Bearing from Bearing 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 A0	N/A 39 mm1.531 in	N/A 39 mm1.531 in	N/A 44 mm1.734 in	N/A 49 mm1.922 in	N/A 56 mm2.203 in
Bolt Size	N/A M14	N/A M14	N/A M14	N/A M16	N/A M16
Grease Nipple Size	N/A A 1/4-28UNF
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
Weight	N/A 1.30 Kg2.9 lb	N/A 1.27 Kg2.8 lb	N/A 1.9 Kg4.2 lb	N/A 2.3 Kg5.1 lb	N/A 3.08 Kg6.80 lb