Ball Bearings vs. Roller Bearings: Which One Does Your Application Actually Need?
Both ball bearings and roller bearings serve the same fundamental purpose: reducing friction, supporting loads,

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2 in stock
The NDH QH20321DT Angular Bearing 7321-E QH-20321-DT-X3045A is a set of two high-quality Angular Contact Ball Bearings designed for industrial applications. Manufactured in the United States by NDH, these bearings have a bore diameter of 105mm, an outside diameter of 225mm, and a width of 49mm. The model number QH 20321 DT X3045A indicates the specific design and features of these bearings, making them suitable for mechanical power transmission and industrial automation systems that require reliable and durable bearings.
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| MFR / Brand | NDH |
|---|---|
| MPN | QH20321DT |
| Model | QH 20321 DT X3045A / 7321 E T DUL P4 / 7316ACD 7321A5 7321A |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 105 mm |
| OD | 225 mm |
| Width | 49 mm |
| Advertise | 1 |
|---|---|
| Material | Bearing Steel |
| Min Temp | -30 °C |
| Cage Type | Pressed |
| Dynamic Load Rating | 208 kN |
| Static Load Rating | 220 kN |
| Precision Rating | ABEC 1 / P0 |
| Series | 7300 |
| Rolling Elements | Ball |
| Max Temp | 120 °C |
| Condition | New – Open box |
| Item Weight | 12.5 lbs |
| Cage Material | Steel |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Lubricant | Oil |
| Harmonization Code | 8482.10.50.28 |
| Contact Angle | 30° |
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