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NTN UC307-106D1 is a standard-duty insert bearing with a 1-3/8 in (34.9 mm) bore, double sealed for contamination resistance. The set screw locking mechanism secures the bearing to the shaft. Constructed from through hardened steel, it is suitable for general industrial applications such as conveyors and fans.
MODEL UC307-106D1
$103.56 Each
Prices are subject to change
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Returnable:No
Bearing Type
Insert bearing
Enclosure
Double sealed
Height
3.15
I.D.
1.375 in
Length
3.15
Locking Device
Set Screw
Material
Through hardened steel
O.D.
3.1496 in
Width
1.8898
Technical Specifications
Type | Insert Bearing |
Bore Type | Round |
Bearing Type | Ball Bearing |
Material | Through Hardened Steel |
Ball Material | Steel |
Limiting Speed - Grease | 4000 RPM |
Seal Type | Contact |
Seal Material | Nitrile Rubber |
Precision Rating | ISO Class 0 |
Performance | Heavy Duty |
Locking Device | Set Screw |
Lubrication | Relubricatable |
Basic Outer Ring | 307 |
Static Load Rating | 4300 lbf19100 N19.10 kN |
Dynamic Load Rating | 7550 lbf33500 N33.50 kN |
Enclosure | Double Sealed |
Weight | 1.567 lb0.711 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.375 in34.925 mm |
D | 3.1496 in80.000 mm |
C | 0.9843 in25.000 mm |
B | 1.8898 in48.000 mm |
r | 0.0787 in2.000 mm |
ds | 5/16-24 UNF |
G | 0.3150 in8.000 mm |
d4 | 1.9449 in49.400 mm |
S1 | 1.1417 in29.000 mm |
S | 0.7480 in19.000 mm |
F | 0.2677 in6.800 mm |
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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