Inch Tapered Roller Bearings
1780/1729 Inch Tapered Roller Bearing
25.4 × 56.896 × 19.368 mm
1780/1729 is a inch tapered roller bearing from the INCH-2 series with a 25.4 mm bore, a 56.896 mm outside diameter and a 19.368 mm overall width. It has a dynamic load rating of 38,250 N and a static load rating of 41,850 N and a speed rating of 8,640 rpm (oil lubrication), weighing about 0.238 kg. The radial cross-section (D − d) is 31.5 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
1780/1729 Specifications
| Cone / Cup No. | 1780/1729 |
|---|---|
| d (Bore) | 25.4 mm |
| D (Outer Dia.) | 56.896 mm |
| T (Overall Width) | 19.368 mm |
| B (Cone Width) | 19.837 mm |
| C (Cup Width) | 15.875 mm |
| Dynamic Load | 38,250 N |
| Static Load | 41,850 N |
| Max. RPM | 8,640 |
| Weight | 0.238 kg |
| Series | Inch Series Tapered Roller Bearings — Range 2 (23.812mm–28.575mm bore) |
Other Bearings with 25.4 mm Bore
| Bearing No. | Series | D (Outer Dia.) mm | Dynamic Load N |
|---|---|---|---|
| 07100/07196 | INCH-2 | 50.005 | 23,400 |
| 07100S/07196 | INCH-2 | 50.005 | 23,400 |
| 44643/44610 | INCH-2 | 50.292 | 25,920 |
| 07100/07204 | INCH-2 | 51.994 | 23,400 |
| 84548/84510 | INCH-2 | 57.15 | 37,800 |
| 84249/84210 | INCH-2 | 59.53 | 45,000 |
| 15578/15523 | INCH-2 | 60.325 | 35,550 |
| 15101/15243 | INCH-2 | 61.912 | 41,850 |
1780/1729 — Frequently Asked Questions
What are the dimensions of the 1780/1729 bearing?
The 1780/1729 has a bore (d) of 25.4 mm, an outside diameter (D) of 56.896 mm and a overall width of 19.368 mm, so it is written 25.4 × 56.896 × 19.368 mm.
What is the load rating of the 1780/1729?
Dynamic load rating 38,250 N and static load rating 41,850 N. The speed rating is 8,640 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Which other bearings have the same 25.4 mm bore as the 1780/1729?
Other inch tapered roller bearings with a 25.4 mm bore include 07100/07196 (50.005 mm OD), 07100S/07196 (50.005 mm OD), 44643/44610 (50.292 mm OD), 07100/07204 (51.994 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 1780/1729 bearing across India?
Yes. Logass Trade Centre supplies the 1780/1729 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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