Inch Tapered Roller Bearings
555/552A Inch Tapered Roller Bearing
50.8 × 123.825 × 38.1 mm
555/552A is a inch tapered roller bearing from the INCH-11 series with a 50.8 mm bore, a 123.825 mm outside diameter and a 38.1 mm overall width. It has a dynamic load rating of 142,200 N and a static load rating of 194,400 N and a speed rating of 3,690 rpm (oil lubrication), weighing about 2.34 kg. The radial cross-section (D − d) is 73.03 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
555/552A Specifications
| Cone / Cup No. | 555/552A |
|---|---|
| d (Bore) | 50.8 mm |
| D (Outer Dia.) | 123.825 mm |
| T (Overall Width) | 38.1 mm |
| B (Cone Width) | 36.678 mm |
| C (Cup Width) | 30.162 mm |
| Dynamic Load | 142,200 N |
| Static Load | 194,400 N |
| Max. RPM | 3,690 |
| Weight | 2.34 kg |
| Series | Inch Series Tapered Roller Bearings — Range 11 (50.8mm–52.388mm bore) |
Other Bearings with 50.8 mm Bore
| Bearing No. | Series | D (Outer Dia.) mm | Dynamic Load N |
|---|---|---|---|
| 104949/104911 | INCH-10 | 82.55 | 62,550 |
| 104949/104912 | INCH-10 | 82.931 | 62,550 |
| 18790/18720 | INCH-10 | 85 | 44,550 |
| 18790/18724 | INCH-10 | 88.9 | 44,550 |
| 368/362A | INCH-10 | 88.9 | 68,850 |
| 368A/362A | INCH-10 | 88.9 | 68,850 |
| 370A/362A | INCH-10 | 88.9 | 68,850 |
| 368A/362 | INCH-11 | 90 | 68,850 |
555/552A — Frequently Asked Questions
What are the dimensions of the 555/552A bearing?
The 555/552A has a bore (d) of 50.8 mm, an outside diameter (D) of 123.825 mm and a overall width of 38.1 mm, so it is written 50.8 × 123.825 × 38.1 mm.
What is the load rating of the 555/552A?
Dynamic load rating 142,200 N and static load rating 194,400 N. The speed rating is 3,690 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Which other bearings have the same 50.8 mm bore as the 555/552A?
Other inch tapered roller bearings with a 50.8 mm bore include 104949/104911 (82.55 mm OD), 104949/104912 (82.931 mm OD), 18790/18720 (85 mm OD), 18790/18724 (88.9 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 555/552A bearing across India?
Yes. Logass Trade Centre supplies the 555/552A 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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