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

UC319	N/A 95 mm	N/A 200 mm7.874 in	N/A 103 mm4.055 in	N/A 119000 N26753 lbf	N/A 153000 N34396 lbf	N/A
UC320	N/A 100 mm	N/A 215 mm8.465 in	N/A 108 mm4.252 in	N/A 141000 N31698 lbf	N/A 173000 N38892 lbf	N/A
UC320-63	N/A 3 15/16 in	N/A 215 mm8.465 in	N/A 108 mm4.252 in	N/A 141000 N31698 lbf	N/A 173000 N38892 lbf	N/A
UC320-64	N/A 4 in	N/A 215 mm8.465 in	N/A 108 mm4.252 in	N/A 141000 N31698 lbf	N/A 173000 N38892 lbf	N/A
UC321	N/A 105 mm	N/A 225 mm8.858 in	N/A 112 mm4.409 in	N/A 153000 N34396 lbf	N/A 184000 N41365 lbf	N/A
UC322	N/A 110 mm	N/A 240 mm9.449 in	N/A 117 mm4.606 in	N/A 180000 N40466 lbf	N/A 205000 N46086 lbf	N/A
UC324	N/A 120 mm	N/A 260 mm10.236 in	N/A 126 mm4.961 in	N/A 185000 N41590 lbf	N/A 207000 N46536 lbf	N/A
UC326	N/A 130 mm	N/A 280 mm11.024 in	N/A 135 mm5.315 in	N/A 214000 N48110 lbf	N/A 229000 N51482 lbf	N/A
UC328	N/A 140 mm	N/A 300 mm11.811 in	N/A 145 mm5.709 in	N/A 246000 N55304 lbf	N/A 253000 N56877 lbf	N/A

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25
30
35
40
45
50
55
60
65
70
75
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85
90
95
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105
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No Preference
62
72
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90
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110
120
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140
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215
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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
3.78
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
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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