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Inch Double Row Tapered Roller Bearings
Inch Double Row Tapered Roller Bearings Strcture Features:
Inch double row tapered roller bearings can withstand heavy radial loads, axial loads in two directions and have a high degree of rigidity.
The outer ring (or inner ring) of the imperial double-row tapered roller bearing is a whole. The small end faces of the two inner rings (or outer rings) are similar, and there is a spacer in the middle. The clearance is adjusted by the thickness of the spacer. The thickness of the spacer can also be used to adjust the pre-interference.
They are mainly used in gearboxes, lifting equipment, rolling mills and mining machinery, such as tunnel boring machines
Imperial Taper Roller Bearings Size Chart:
| Model Number | Dimensions (mm) | Mass (kg) |
| NA484/472D | 70×120×65.09 | 2.76 |
| 598/592D | 92.075×152.4×82.55 | 5.74 |
| 687/672D | 101.6×168.275×92.075 | 8.18 |
| 861/854D | 101.6×190.5×127 | 15.59 |
| 896/892D | 136.525×228.6×123.825 | 20.6 |
| 896/892D | 136.525×228.6×123.825 | 19.9 |
| JRM3535/JRM3564XD | 35×64×18.5 | 0.511 |
| JRM3939/JRM3968XD | 39×68×18.5 | 0.541 |
| 8578/8520DC | 241.3×327.025×114.3 | 25 |
| 64450/64700D | 114.3×177.8×92.075 | 7.45 |
| NA46790-SW/46720CD | 165.1×225.425×95.25 | 10.51 |
| NA48685SW/48620D | 147.875×200.025×43.665 | 8.82 |
| 71437/71751D | 111.125×190.5×106.362 | 11.95 |
| 74550/74851ZDC | 139.7×215.9×106.362 | 9.94 |
| 82550/82932D | 139.702×236.538×131.763 | 23.4 |
| 82562/82932D | 142.875×236.538×131.763 | 23.3 |
| NA95500/95927CD | 127×234.95×142.875 | 25.4 |
| 99575/99102CD | 146.05×254×149.225 | 28 |
| EE114080/EE114161DC | 203.2×406.4×169.85 | 107 |
| EE126098/EE126161CD | 249.25×381×171.45 | 63.4 |
| HM126048/HM124618XD | 119.062×195×142.875 | – |
| HM129848/HM129814XD | 144.45×220.663×155.576 | 18.2 |
| L163149/L163110D | 355.6×444.5×136.525 | 44.6 |
| EE181453/EE19235LD | 368.249×523.857×203.2 | 184 |
| NA231400/231976CD | 355.6×501.65×146.05 | 88 |
| JH211749/JH211710/DB | 65×120×86 | 3.89 |
| KJH211749/KJH211710/DB | 65×120×86 | 3.89 |
| KHM237545/KHM237510D | 177.8×288.925×142.875 | 31.4 |
| HM237546DW/HM237510 | 177.8×288.295×123.825 | 31.5 |
| HM237545/HM237510DC | 177.8×288.925×142.875 | 30.8 |
| HM237545/237510CD | 177.8×288.925×142.875 | 33 |
| HM256849/HM256810D | 203.2×276.225×95.25 | 14.8 |
| LM239530T/LM239546TD-LM239549T | (d×D×B1/T)181.808×259.969×161.925 | 24.4 |
| EE243196/EE243251DC | (d×D×B1/T)498.475×634.873×177.8 | 127 |
| HH255149D/HH255110 | (d×D×B1/T)279.4×457.2×244.75 | 180.75 |
| HH258249TD/HH258210 | (d×D×B1/T)303.212×495.3×263.525 | 223.84 |
| HM256849/HM256810D | (d×D×B1/T)300.038×422.275×174.625 | 65.6 |
| HM256849/HM256810D | (d×D×B1/T)300.038×422.275×174.625 | 65.6 |
| HM262749TD/HM262710 | (d×D×B1/T)331.536×488.95×174.625 | 102 |
| HM269010R/HM261049D | (d×D×B1/T)333.375×469.9×342.9 | 194 |
| HM262749TD/HM262710 | (d×D×B1/T)346.175×488.95×174.625 | 103 |
| HM265049/HM265010D/P | (d×D×B1/T)368.249×523.875×214.312 | 143 |
| HM2650497DS/HM265010S | (d×D×B1/T)368.3×523.875×185.738 | 140 |
| HM266449DW/HM266410 | (d×D×B1/T)384.125×546.1×193.675 | 157.016 |
| LM272249DW/LM27221-LM272210D | (d×D×B1/T)482.6×615.95×33.02 | 252 |
| M238840/M238810D | (d×D×B1/T)177.8×269.875×119.062 | 22 |
| M238848/M238810DC | (d×D×B1/T)187.325×269.875×119.062 | 19.3 |
| M249732/M249710CD | (d×D×B1/T)228.6×358.775×152.4 | 56.7 |
| M252349D/M252310 | (d×D×B1/T)269.875×381×136.525 | 51.5 |
| M252349DW/252310 | (d×D×B1/T)269.875×381×282.575 | 101 |
| M255449TD/M255410 | (d×D×B1/T)288.925×406.4×144.463 | 58 |
| M255449TD/M255410 | (d×D×B1/T)288.93×406.4×77.788 | 30.5 |
| M268749DW/M268710 | (d×D×B1/T)415.93×590.55×209.55 | 179 |
| M270749ADW/M270710 | (d×D×B1/T)447.675×635×223.838 | 238.3 |
| M272749/M272710DC | (d×D×B1/T)479.425×679.45×276.225 | 322 |
| M278749D/M278710 | (d×D×B1/T)571.5×812.8×285.25 | 491 |
| M280049D/M280010 | (d×D×B1/T)595.312×844.55×296.862 | 523 |
| E323166D/323290 | (d×D×B1/T)419.227×736.448×406.4 | 799 |
| NA329120/329173D | (d×D×B1/T)304.8×438.048×161.925 | 65.4 |
| L357049NW/L357010D | (d×D×B1/T)304.8×393.7×50.8 | 14.6 |
Bearing Overheat Reasons and Soulutions:
(1) Reason: low bearing accuracy
Method: Use double-row tapered roller bearings with specified accuracy grades.
(2) Reason: The spindle is bent or the box hole is not concentric
Method: Repair the main shaft or box.
(3) Reason: The belt is too tight
Method: Adjust the belt to make it tight.
(4) Reason: poor lubrication
Method: Choose lubricating materials of specified grades and clean them appropriately.
(5) Reason: low assembly quality
Method: Improve assembly quality.
(6) Reason: The inner and outer shell of the bearing runs around
Method: Replace bearings and related wear parts.
(7) Too much axial force
Method: Clean and adjust the sealing ring gap between 0.2mm and 0.3mm, correct the diameter of the balance hole of the impeller and check the static balance value.
(8) Bearing damage
Method: Replace double-row tapered roller bearings.
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Questions buyers still ask while reviewing Inch Double Row Tapered Roller Bearings
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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 Double 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 Double 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 Double Row Tapered Roller Bearings?
The main takeaway is that inch double 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
