3979/3920 Bearing 3979 – 3920 Inch Roller Bearing 57.150×112.712×30.048
Cone Number: 3979
Cup Number: 3920
Inner Diameter (d): 57.150mm/ 2.25 inch
Outer Diameter (D): 112.712mm/ 4.4375 inch
Cone Width (B): 30.048mm/ 1.1830 inch
Bearing Width (T): 30.163mm/ 1.1875 inch
Mass: 1.37kg/ 3.02lb
Category: single row taper roller bearing
3979/3920 Bearing Specification:
3979/3920 bearing features a single row roller bearing.
As for this bearing,
Cone Number: 3979
Cup Number: 3920
Inner Diameter (d): 57.150mm/ 2.25 inch
Outer Diameter (D): 112.712mm/ 4.4375 inch
Cone Width (B): 30.048mm/ 1.1830 inch
Bearing Width (T): 30.163mm/ 1.1875 inch
Mass: 1.37kg/ 3.02lb
Cage: stamped steel
Bearing Material: bearing steel
Precision: standard precision ABEC1
Category: single row taper roller bearing
Interchange Numbers: 3979 – 3920, 3979-3920, 3979/20, 3979-99401
Durable Imperial Taper Roller Bearings We Offer:
| Bearing Model | Dimensions (d*D*T) | Mass (kg) |
| 42346/42584 | 87.960×148.430×28.575 | 1.960 |
| 42346/42587 | 87.960×149.225×31.750 | 2.100 |
| LL217849/LL217810 | 88.900×121.442×15.083 | 0.470 |
| L217849/L217810 | 88.900×123.825×20.638 | 0.740 |
| L217849/L217813 | 88.900×127.000×20.638 | 0.850 |
| 42350/42584 | 88.900×148.430×28.575 | 1.930 |
| 42350/42587 | 88.900×149.225×31.750 | 2.070 |
| 593A/JM719113 | 88.900×150.000×35.966 | 2.440 |
| 593/JM719113 | 88.900×150.000×35.966 | 2.470 |
| 593/593X | 88.900×150.000×35.992 | 2.460 |
| 593/592A | 88.900×152.400×39.688 | 2.750 |
| 593A/592A | 88.900×152.400×39.688 | 2.700 |
| HM518445/HM518410 | 88.900×152.400×39.688 | 2.790 |
| 759/752A | 88.900×159.995×47.625 | 3.940 |
| 6580/6525X | 88.900×160.000×53.975 | 4.520 |
| 69350X/69630 | 88.900×160.096×30.124 | 2.400 |
| 759/752 | 88.900×161.925×47.625 | 4.070 |
| 766/752 | 88.900×161.925×47.625 | 4.020 |
| 6580/6535 | 88.900×161.925×53.975 | 4.660 |
| 6580/6536 | 88.900×161.925×53.975 | 4.680 |
| 679/672 | 88.900×168.275×41.275 | 3.980 |
| 759/753 | 88.900×168.275×47.625 | 4.540 |
| 766/753 | 88.900×168.275×47.625 | 4.490 |
| 850/832 | 88.900×168.275×53.975 | 5.040 |
FAQ:
Q1: What loads can it (single row taper roller bearing) handle?
A1: It handles heavy radial loads and axial (thrust) loads in one direction; axial capacity rises with larger contact angles.
Q2: Is the bearing separable?
A2: Yes. The cone (inner ring, rollers, cage) separates from the cup (outer ring) for easier mounting and maintenance.
Q3: What applications suit this bearing?
A3: Use it in gearboxes, axles, transmissions, heavy machinery, and any shaft arrangement needing combined radial and axial support.
Q4: What materials and cage types are typical?
A4: Rings and rollers use hardened bearing steel; cages commonly use steel.
Shipping Method:
1. Sea shipping for mass cargos (GW > 500KGS)
2. Air shipping (GW between 100KGS – 500 KGS)
3. Express, such as DHL, TNT, Fedex, UPS for small cargos ( GW < 100KGS)
4. If you have shipping agent in China, we can send goods to your shipping agent's warehouse

Payment Terms:
We accept T/T, W/U, PAYPAL, L/C etc

