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| Place of Origin: | Japan |
| Brand Name: | NSK |
| Certification: | ISO 9001 2000 |
| Model Number: | 18590R/18520R |
The NSK 18590R/18520R is an inch-series, single-row tapered roller bearing engineered to support combined radial and axial loads. It consists of a cone assembly (inner ring, tapered rollers, and cage) and a separate cup (outer ring). Its tapered raceway design delivers reliable load distribution, smooth rotation, and durable performance under demanding operating conditions.
| Bearing Model | 18590R/18520R |
| Bearing Type | Single-Row Tapered Roller Bearing |
| Cone Part Number | 18590R |
| Cup Part Number | 18520R |
| Bore Diameter (d) | 41.275 mm |
| Outside Diameter (D) | 73.025 mm |
| Total Width (T) | 16.667 mm |
| Inner Ring Width (B) | 17.462 mm |
| Outer Ring Width (C) | 12.7 mm |
| Cage Material | Stamped Steel |
| Bearing Design | Inch Series, Separable Cone and Cup |
| Metric Bearing No. | d (mm) | D (mm) | T (mm) | B (mm) | C (mm) | R (mm) | r (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 33012 | 60.000 | 95.000 | 27.000 | 26.000 | 21.000 | 1.5 | 1.5 | 0.666 |
| 33013 | 65.000 | 100.000 | 27.000 | 27.000 | 21.000 | 1.5 | 1.5 | 0.740 |
| 33016 | 80.000 | 125.000 | 36.000 | 36.000 | 29.500 | 1.5 | 1.5 | 1.615 |
| 33019 | 95.000 | 145.000 | 39.000 | 39.000 | 32.500 | 2.0 | 2.0 | 2.260 |
| 33021 | 105.000 | 160.000 | 43.000 | 43.000 | 34.000 | 2.5 | 2.0 | 2.980 |
| 33108 | 40.000 | 75.000 | 26.000 | 26.000 | 20.500 | 1.5 | 1.5 | 0.484 |
| 33109 | 45.000 | 80.000 | 26.000 | 26.000 | 20.500 | 1.5 | 1.5 | 0.536 |
| 33110 | 50.000 | 85.000 | 26.000 | 26.000 | 20.000 | 1.5 | 1.5 | 0.595 |
| 33113 | 65.000 | 110.000 | 34.000 | 34.000 | 26.500 | 1.5 | 1.5 | 1.300 |
| 33116 | 80.000 | 130.000 | 37.000 | 37.000 | 29.000 | 2.0 | 1.5 | 1.864 |
| 33118 | 90.000 | 150.000 | 45.000 | 45.000 | 35.000 | 2.5 | 2.0 | 3.130 |
For purchasing 18590R/18520R taper roller bearings, contact our professional team:
Email: sales@transmission-chain.com
WhatsApp: 008615006175975
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