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NTN NA6910R is a machined ring needle roller bearing with a 50 mm bore. This open bearing features a steel cage and is constructed from high carbon chrome steel. It is designed for applications requiring high radial load capacity in a compact cross-section, such as gearboxes, pumps, and industrial machinery.
MODEL NA6910R
$182.20 Each
Prices are subject to change
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Returnable:No
Bearing Type
Needle roller bearing
Cage
Steel
Enclosure
Open
Height
2.835
I.D.
50 mm
Length
2.835
Material
High carbon chrome steel
O.D.
72 mm
Width
1.5748
Technical Specifications
| Type | Needle Roller Bearing |
|---|---|
| Bore Type | Round |
| Material | High Carbon Chrome Steel |
| Cage Material | Steel |
| Limiting Speed - Oil | 7000 RPM |
| Limiting Speed - Grease | 4700 RPM |
| Precision | ISO Class 0 |
| Configuration | Two |
| Enclosure | Open |
| Bearing Design | w/ Inner Ring |
| Oil Hole | w/ Oil Hole |
| Radial Internal Clearance | CN |
| Static Load Rating | 31500 lbf139000 N139.00 kN |
| Dynamic Load Rating | 16600 lbf74000 N74.00 kN |
| Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
| d | 1.9685 in50.000 mm |
|---|---|
| D | 2.8346 in72.000 mm |
| F | 2.2835 in58.000 mm |
| B | 1.5748 in40.000 mm |
| r | 0.0236 in0.600 mm |
| s | 0.0197 in0.500 mm |
| da min | 2.1260 in54.000 mm |
| Da max | 2.6772 in68.000 mm |
| ras max | 0.0236 in0.600 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.
| Brand | Gates Rubber |
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| Brand | Siemens Controls |
| Model | 6SL3055-0AA00-5HA3 |
