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Inch Single Row Tapered Roller Bearings
Inch Single Row Tapered Roller Bearings Structure:
Inch single row tapered roller bearings contain outer ring, inner ring, cage and rollers. The outer ring (cup) can be separated from the inner ring assembly(cone).
Generally, the tapered angle of the outer ring raceway of a single-row tapered roller bearing is 10°~19°, which can bear the combined action of bearing load and radial load at the same time. The greater the cone angle, the greater the ability to withstand axial load.
Bearings with large taper angle, add B to the suffix code, and the taper angle is between 25°~29°, which can bear larger axial load.
In addition, users can adjust the clearance of single-row tapered roller bearings during the installation process.
Features:
1. Rated dynamic load ratio 1.5～2.5
2. Bearings can bear unidirectional axial load, additional axial force will be generated under the action of radial load, generally used in pairs
3. Single row tapered bearings can limit the axial displacement of the shaft and the housing in one direction
4. Low limit speed
Inch Single Row Tapered Roller Bearing Size Chart:
| Model Number | Dimensions | Weight | ||
| d | D | B | ||
| 342S/332 | 42.875 | 80.000 | 22.403 | 0.430 |
| 344A/332 | 40.000 | 80.000 | 21.000 | 0.472 |
| 350A/354A | 40.000 | 85.000 | 20.638 | 0.550 |
| 355/354A | 44.450 | 85.000 | 21.692 | 0.500 |
| 355A/354A | 44.450 | 85.000 | 20.638 | 0.500 |
| 358/354 | 45.000 | 80.000 | 20.638 | 0.523 |
| 359A/354A | 40.038 | 85.000 | 20.639 | 0.510 |
| 368A/362A | 50.800 | 88.900 | 20.638 | 0.504 |
| 368/362 | 50.800 | 90.000 | 20.000 | 0.507 |
| 368S/362A | 51.592 | 88.900 | 22.225 | 0.490 |
| 377/372 | 52.388 | 100.000 | 22.225 | 0.830 |
| 375/374 | 50.800 | 93.264 | 22.225 | 0.590 |
| 385A/382A | 50.800 | 96.868 | 21.946 | 0.670 |
| 385AX/382A | 50.800 | 96.868 | 21.946 | 0.680 |
| 387A/362S | 57.150 | 96.838 | 25.400 | 0.669 |
| 387/382S | 57.120 | 96.838 | 25.400 | 0.654 |
| 387A/382A | 57.150 | 96.838 | 21.000 | 0.599 |
| 387AS/382A | 57.150 | 96.838 | 21.000 | 0.587 |
| 387A/382 | 57.150 | 98.425 | 21.000 | 0.646 |
| 390A/394A | 57.150 | 110.000 | 21.999 | 0.840 |
| 392/394A | 61.912 | 110.000 | 22.000 | 0.860 |
| 395/394A | 63.500 | 110.000 | 21.999 | 0.830 |
| 398/394A | 50.800 | 110.000 | 22.000 | 1.030 |
| 399/394A | 68.262 | 110.000 | 22.000 | 0.750 |
| 3187/20 | 30.162 | 72.656 | 29.997 | 0.590 |
| 3188/20 | 31.750 | 72.626 | 29.997 | 0.580 |
| 3196/3120 | 33.338 | 72.626 | 29.997 | 0.550 |
| 3197/3120 | 33.338 | 72.626 | 29.997 | 0.570 |
| 3379/20 | 34.925 | 80.167 | 29.370 | 0.714 |
| 3384/20 | 41.275 | 80.167 | 29.370 | 0.264 |
| 3386/20 | 39.688 | 80.167 | 29.370 | 0.651 |
| 3478/20 | 34.925 | 79.375 | 29.771 | 0.700 |
| 3479/20 | 36.512 | 79.375 | 29.771 | 0.680 |
| 3490/20 | 38.100 | 79.375 | 29.370 | 0.650 |
| JRM3535/64XD | 35.000 | 64.000 | 18.500 | 0.511 |
| 3578/3520 | 44.450 | 84.138 | 30.886 | 0.680 |
| 3578/25 | 44.450 | 83.312 | 30.162 | 0.789 |
| 3659/20 | 23.812 | 61.912 | 30.416 | 0.430 |
| 3767/3720 | 52.388 | 93.264 | 30.302 | 0.810 |
| 3775/20 | 50.800 | 93.264 | 30.302 | 0.850 |
| 3775/30 | 50.800 | 93.264 | 30.302 | 0.870 |
| 3780/3720 | 50.800 | 93.254 | 30.162 | 0.856 |
| 3780/26 | 50.800 | 93.250 | 30.302 | 0.890 |
| 3780/30 | 50.800 | 93.264 | 30.162 | 0.850 |
| 3782/3720 | 44.450 | 93.264 | 30.162 | 0.970 |
How to Use Inch Single Row Tapered Roller Bearings
The correct installation of tapered roller bearings affects accuracy, life and performance.
The correct use steps are usually as follows，
(1) Clean the bearing and its related parts
(2) Check the size and finishing of related parts
(3) Installation
(4) Inspection after bearing installation
(5) Supply lubricant
Questions buyers still ask while reviewing Inch Single Row Tapered Roller Bearings
Which next options usually help after reviewing Inch Single Row Tapered Roller Bearings?
Most buyers benefit from one broader family destination, one more commercial route, and one supporting guide that answers the next practical question. That combination usually turns research into a clearer shortlist.
Why add related bearing destinations beside Inch Single Row Tapered Roller Bearings?
Because the first answer often leads to a second question about fit, applications, supplier choice, or repeat-order confidence. Keeping those next destinations close reduces unnecessary backtracking.
When is it worth moving from reading into a quote or product review?
That move usually makes sense once the topic has narrowed the likely bearing family and the remaining unknowns are commercial, dimensional, or application-specific rather than purely educational.
What usually makes the next bearing decision easier after Inch Single Row Tapered Roller Bearings?
The process is often easier when the wider family view, the more commercial destination, and one practical guide stay visible together. That keeps the decision grounded in both application detail and buying reality.
Buyer FAQ
Questions buyers ask before choosing the next bearing option
What is the main takeaway from Inch Single Row Tapered Roller Bearings?
The main takeaway is that inch single row tapered roller bearings should be checked against the bearing family, dimensions, load direction, speed, and operating conditions instead of relying on the title or size alone.
When should I use this guide before requesting a quote?
Use the guide when you are comparing bearing models, checking suffix meanings, confirming seal or clearance choices, planning maintenance, or preparing details for replacement, production, or OEM sourcing.
How does this topic connect to taper roller bearings?
The topic supports the Taper Roller Bearings decision path by helping buyers understand fit, performance, specification details, or maintenance factors before choosing a product page or contacting the team.
Can this guide replace a final specification check?
No. The guide helps prepare the decision, but a final check should still confirm the part number, dimensions, load, speed, seal, clearance, precision, application, and order quantity.
What should I send if I need help after reading this guide?
Send the bearing number, measured size, photos if available, application, quantity, and any special operating conditions. That gives the team enough context to recommend the right product family or quote route.
Need help checking fit, price, or lead time? Request a bearing quote
