Inch Tapered Roller Bearings
2578/2523 Inch Tapered Roller Bearing
28.575 × 69.85 × 23.812 mm
2578/2523 is a inch tapered roller bearing from the INCH-3 series with a 28.575 mm bore, a 69.85 mm outside diameter and a 23.812 mm overall width. It has a dynamic load rating of 62,100 N and a static load rating of 73,350 N and a speed rating of 6,840 rpm (oil lubrication), weighing about 0.483 kg. The radial cross-section (D − d) is 41.27 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
2578/2523 Specifications
| Cone / Cup No. | 2578/2523 |
|---|---|
| d (Bore) | 28.575 mm |
| D (Outer Dia.) | 69.85 mm |
| T (Overall Width) | 23.812 mm |
| B (Cone Width) | 25.357 mm |
| C (Cup Width) | 19.05 mm |
| Dynamic Load | 62,100 N |
| Static Load | 73,350 N |
| Max. RPM | 6,840 |
| Weight | 0.483 kg |
| Series | Inch Series Tapered Roller Bearings — Range 3 (28.575mm–31.75mm bore) |
Other Bearings with 28.575 mm Bore
| Bearing No. | Series | D (Outer Dia.) mm | Dynamic Load N |
|---|---|---|---|
| 1985/1930 | INCH-2 | 56.896 | 36,450 |
| 15590/15520 | INCH-2 | 57.15 | 35,550 |
| 1985/1932 | INCH-2 | 58.738 | 36,450 |
| 1988/1932 | INCH-2 | 58.738 | 36,450 |
| 15590/15523 | INCH-3 | 60.325 | 35,550 |
| 1985/1931 | INCH-3 | 60.325 | 36,450 |
| 15112/15245 | INCH-3 | 62 | 41,850 |
| 15113/15245 | INCH-3 | 62 | 41,850 |
2578/2523 — Frequently Asked Questions
What are the dimensions of the 2578/2523 bearing?
The 2578/2523 has a bore (d) of 28.575 mm, an outside diameter (D) of 69.85 mm and a overall width of 23.812 mm, so it is written 28.575 × 69.85 × 23.812 mm.
What is the load rating of the 2578/2523?
Dynamic load rating 62,100 N and static load rating 73,350 N. The speed rating is 6,840 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Which other bearings have the same 28.575 mm bore as the 2578/2523?
Other inch tapered roller bearings with a 28.575 mm bore include 1985/1930 (56.896 mm OD), 15590/15520 (57.15 mm OD), 1985/1932 (58.738 mm OD), 1988/1932 (58.738 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 2578/2523 bearing across India?
Yes. Logass Trade Centre supplies the 2578/2523 Pan India with technical support, from single pieces to bulk orders. Use the quote button to share your quantity and brand preference.
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We supply sizes, brands and special versions of inch tapered roller bearings that are not listed on this page. Type the exact size or designation you need and send it to us for a quote.
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