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NTN 21314 spherical roller bearing with a 70 mm straight bore. This open bearing features a steel cage and is designed for moderate radial and axial loads in industrial machinery such as gearboxes, fans, and conveyors.
MODEL 21314
$303.51 Each
Prices are subject to change
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Returnable:No
Height
5.906
I.D.
70 mm
Length
5.906
Material
Brass/Bronze
O.D.
150 mm
Width
1.378
Technical Specifications
Type | Spherical Roller Bearing |
Bore Type | Round |
Material | Through Hardened Steel |
Cage Type | Machined |
Cage Material | Brass |
Limiting Speed - Oil | 3800 RPM |
Limiting Speed - Grease | 2900 RPM |
e | 0.25 |
Y1 | 2.69 |
Y2 | 4.00 |
Y0 | 2.63 |
Series | 213 |
Radial Internal Clearance | CN |
Ring Modification | Plain |
Tolerance | JIS-0 RBEC-1 |
Static Load Rating | 59000 lbf262000 N262.00 kN |
Dynamic Load Rating | 49500 lbf220000 N220.00 kN |
Enclosure | Open |
Weight | 6.967 lb3.160 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
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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