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

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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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Shaft Size d (mm)

Shaft Size d (in)

Outside Diameter (mm)

Outside Diameter (in)

Total Width (mm)

Total Width (in)

Dynamic Load Rating (N)

Dynamic Load Rating (lbf)

Part Number	Shaft Size d	Outside Diameter	Total Width	Static Load Rating	Dynamic Load Rating	CAD

UC305	N/A 25 mm	N/A 62 mm2.441 in	N/A 38 mm1.496 in	N/A 10900 N2450 lbf	N/A 21200 N4766 lbf	N/A
UC305-16	N/A 1 in	N/A 62 mm2.441 in	N/A 38 mm1.496 in	N/A 10900 N2450 lbf	N/A 21200 N4766 lbf	N/A
UC306	N/A 30 mm	N/A 72 mm2.835 in	N/A 43 mm1.693 in	N/A 15000 N3372 lbf	N/A 26700 N6002 lbf	N/A
UC307	N/A 35 mm	N/A 80 mm3.15 in	N/A 48 mm1.890 in	N/A 19300 N4339 lbf	N/A 33400 N7509 lbf	N/A
UC308-24	N/A 1 1/2 in	N/A 90 mm3.543 in	N/A 52 mm2.047 in	N/A 24000 N5395 lbf	N/A 40700 N9150 lbf	N/A
UC308	N/A 40 mm	N/A 90 mm3.543 in	N/A 52 mm2.047 in	N/A 24000 N5395 lbf	N/A 40700 N9150 lbf	N/A
UC309-28	N/A 1 3/4 in	N/A 100 mm3.937 in	N/A 57 mm2.244 in	N/A 29500 N6632 lbf	N/A 48900 N10993 lbf	N/A
UC309	N/A 45 mm	N/A 100 mm3.937 in	N/A 57 mm2.244 in	N/A 29500 N6632 lbf	N/A 48900 N10993 lbf	N/A
UC310	N/A 50 mm	N/A 110 mm4.331 in	N/A 61 mm2.402 in	N/A 38300 N8610 lbf	N/A 62000 N13938 lbf	N/A
UC311-32	N/A 2 in	N/A 120 mm4.724 in	N/A 66 mm2.598 in	N/A 45000 N10117 lbf	N/A 71600 N16096 lbf	N/A
UC311	N/A 55 mm	N/A 120 mm4.724 in	N/A 66 mm2.598 in	N/A 45000 N10117 lbf	N/A 71600 N16096 lbf	N/A
UC311-35	N/A 2 3/16 in	N/A 120 mm4.724 in	N/A 66 mm2.598 in	N/A 45000 N10117 lbf	N/A 71600 N16096 lbf	N/A
UC312	N/A 60 mm	N/A 130 mm5.118 in	N/A 71 mm2.795 in	N/A 52200 N11735 lbf	N/A 81900 N18412 lbf	N/A
UC312-39	N/A 2 7/16 in	N/A 130 mm5.118 in	N/A 71 mm2.795 in	N/A 52200 N11735 lbf	N/A 81900 N18412 lbf	N/A
UC313-40	N/A 2 1/2 in	N/A 140 mm5.512 in	N/A 75 mm2.953 in	N/A 59900 N13466 lbf	N/A 92700 N20840 lbf	N/A
UC313	N/A 65 mm	N/A 140 mm5.512 in	N/A 75 mm2.953 in	N/A 59900 N13466 lbf	N/A 92700 N20840 lbf	N/A
UC314-44	N/A 2 3/4 in	N/A 150 mm5.906 in	N/A 78 mm3.071 in	N/A 68200 N15332 lbf	N/A 104000 N23380 lbf	N/A
UC314	N/A 70 mm	N/A 150 mm5.906 in	N/A 78 mm3.071 in	N/A 68200 N15332 lbf	N/A 104000 N23380 lbf	N/A
UC315-47	N/A 2 15/16 in	N/A 160 mm6.299 in	N/A 82 mm3.228 in	N/A 77200 N17355 lbf	N/A 113000 N25404 lbf	N/A
UC315	N/A 75 mm	N/A 160 mm6.299 in	N/A 82 mm3.228 in	N/A 77200 N17355 lbf	N/A 113000 N25404 lbf	N/A
UC315-48	N/A 3 in	N/A 160 mm6.299 in	N/A 82 mm3.228 in	N/A 77200 N17355 lbf	N/A 113000 N25404 lbf	N/A
UC316	N/A 80 mm	N/A 170 mm6.693 in	N/A 86 mm3.386 in	N/A 86700 N19491 lbf	N/A 123000 N27652 lbf	N/A
UC317	N/A 85 mm	N/A 180 mm7.087 in	N/A 96 mm3.780 in	N/A 96800 N21762 lbf	N/A 133000 N29900 lbf	N/A
UC318-56	N/A 3 1/2 in	N/A 190 mm7.480 in	N/A 96 mm3.780 in	N/A 107000 N24055 lbf	N/A 143000 N32148 lbf	N/A
UC318	N/A 90 mm	N/A 190 mm7.480 in	N/A 96 mm3.780 in	N/A 107000 N24055 lbf	N/A 143000 N32148 lbf	N/A

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Email ^*
First Name ^*
Last Name ^*
Company ^*
Department ^*
Country ^*
Zip/Postal Code ^*
Phone Number

No Preference
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
120
130
140

No Preference
62
72
80
90
100
110
120
130
140
150
160
170
180
190
200
215
225
240
260
280
300

No Preference
2.441
2.835
3.15
3.543
3.937
4.331
4.724
5.118
5.512
5.906
6.299
6.693
7.087
7.480
7.874
8.465
8.858
9.449
10.236
11.024
11.811

No Preference
38
43
48
52
57
61
66
71
75
78
82
86
96
103
108
112
117
126
135
145

No Preference
1.496
1.693
1.890
2.047
2.244
2.402
2.598
2.795
2.953
3.071
3.228
3.386
3.780
4.055
4.252
4.409
4.606
4.961
5.315
5.709

No Preference
21200
26700
33400
40700
48900
62000
71600
81900
92700
104000
113000
123000
133000
143000
153000
173000
184000
205000
207000
229000
253000

No Preference
4766
6002
7509
9150
10993
13938
16096
18412
20840
23380
25404
27652
29900
32148
34396
38892
41365
46086
46536
51482
56877

Shaft Size d (mm)

Shaft Size d (in)

Outside Diameter (mm)

Outside Diameter (in)

Total Width (mm)

Total Width (in)

Dynamic Load Rating (N)

Dynamic Load Rating (lbf)

Part Number

Shaft Size d

Outside Diameter

Total Width

Static Load Rating

Dynamic Load Rating

CAD