Inch Tapered Roller Bearings
3984/3920 Inch Tapered Roller Bearing
66.675 × 112.712 × 30.162 mm
3984/3920 is a inch tapered roller bearing from the INCH-15 series with a 66.675 mm bore, a 112.712 mm outside diameter and a 30.162 mm overall width. It has a dynamic load rating of 107,100 N and a static load rating of 156,600 N and a speed rating of 3,870 rpm (oil lubrication), weighing about 1.18 kg. The radial cross-section (D − d) is 46.04 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
3984/3920 Specifications
| Cone / Cup No. | 3984/3920 |
|---|---|
| d (Bore) | 66.675 mm |
| D (Outer Dia.) | 112.712 mm |
| T (Overall Width) | 30.162 mm |
| B (Cone Width) | 30.048 mm |
| C (Cup Width) | 23.812 mm |
| Dynamic Load | 107,100 N |
| Static Load | 156,600 N |
| Max. RPM | 3,870 |
| Weight | 1.18 kg |
| Series | Inch Series Tapered Roller Bearings — Range 15 (66.675mm–69.952mm bore) |
Other Bearings with 66.675 mm Bore
| Bearing No. | Series | D (Outer Dia.) mm | Dynamic Load N |
|---|---|---|---|
| 812148/812111 | INCH-15 | 103.213 | 54,000 |
| 29590/29520 | INCH-15 | 107.95 | 82,350 |
| 395A/394A | INCH-15 | 110 | 80,550 |
| 395S/394A | INCH-15 | 110 | 80,550 |
| 3984/3925 | INCH-15 | 112.712 | 107,100 |
| 3994/3920 | INCH-15 | 112.712 | 107,100 |
| 39590/39520 | INCH-15 | 112.712 | 124,200 |
| 212049/212010 | INCH-15 | 122.238 | 168,300 |
3984/3920 — Frequently Asked Questions
What are the dimensions of the 3984/3920 bearing?
The 3984/3920 has a bore (d) of 66.675 mm, an outside diameter (D) of 112.712 mm and a overall width of 30.162 mm, so it is written 66.675 × 112.712 × 30.162 mm.
What is the load rating of the 3984/3920?
Dynamic load rating 107,100 N and static load rating 156,600 N. The speed rating is 3,870 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Which other bearings have the same 66.675 mm bore as the 3984/3920?
Other inch tapered roller bearings with a 66.675 mm bore include 812148/812111 (103.213 mm OD), 29590/29520 (107.95 mm OD), 395A/394A (110 mm OD), 395S/394A (110 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 3984/3920 bearing across India?
Yes. Logass Trade Centre supplies the 3984/3920 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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