Double Row Tapered Roller Bearings
AMIGO manufactures double row tapered roller bearings in the TDO and TDI designs, offering various features. These bearings accommodate heavy radial loads, axial loads in both directions, and provide high stiffness. They are commonly used in gearboxes, hoisting equipment, rolling mills, and mining machines like tunnelling equipment.
- High Load Capacity
Suitable for heavy radial and axial loads, with increased axial capacity as the contact angle α increases (10°–30°). - Axial Load Support
Locates the shaft in both directions with specific axial clearance or preload. - High Stiffness
Provides a stiff bearing arrangement for enhanced performance. - Low Friction
Optimized roller end design and surface finish promote lubricant film formation, reducing friction, heat, and wear, while maintaining preload and lowering noise. - Long Service Life
Crowned and logarithmic raceway profiles optimize load distribution, reducing stress peaks and misalignment sensitivity. - Operational Reliability
Enhanced surface finish on rollers and raceways ensures hydrodynamic lubrication. - Consistency
Close tolerances in roller profiles offer optimal load distribution, reduced noise, and more accurate preload settings.
AMIGO Double row tapered roller bearings with machined rings are widely used in various industries. Their availability matches their versatility across numerous applications in a wide range of designs, variants, and sizes. Examples of applications include:
- Automotive Industry
- Heavy Machinery and Equipment
- Mining and Quarrying
- Railways
- Steel and Metal Processing
- Wind Turbines and Energy Sector
- Construction Equipment
- Agricultural Machinery
- Industrial Gearboxes
- Marine Industry
Double Row Tapered Roller Bearings - Designs and Variants
TDO design bearings
TDO design bearings are double row tapered roller bearings designed to handle heavy radial and axial loads. They offer high stiffness and are suitable for applications where precise shaft alignment is needed.
TDI design bearings
TDI design bearings consist of two inner rings and one outer ring, making them ideal for applications with combined heavy radial and axial loads. They are widely used in various industrial settings.
Double Row Tapered Roller Bearings Size Chart
| Designation | d [mm] | D [mm] | T [mm] | C [mm] |
|---|---|---|---|---|
| 331945 | 228.6 | 488.95 | 254 | 152.4 |
| BT2B 328130 | 260 | 480 | 284 | 220 |
| BT2B 332504/HA2 | 300.038 | 422.275 | 174.625 | 136.525 |
| BT2B 332830 | 340 | 460 | 160 | 128 |
| BT2B 332831 | 360 | 480 | 160 | 128 |
| BT2B 332603/HA1 | 368.249 | 523.875 | 214.312 | 169.862 |
| 331197 A | 384.175 | 546.1 | 222.25 | 177.8 |
| BT2-8143/HA1 | 400 | 540 | 170 | 135 |
| 331656 | 415.925 | 590.55 | 244.475 | 193.675 |
| BT2B 332604/HA1 | 431.8 | 571.5 | 155.575 | 111.125 |
| 331657 | 479.425 | 679.45 | 276.225 | 222.25 |
| 331605 B | 498.475 | 634.873 | 177.8 | 142.875 |
| BT2B 332605 A/HA1 | 501.65 | 711.2 | 292.1 | 231.775 |
| BT2B 332446 | 536.575 | 761.873 | 311.15 | 247.65 |
| 331640 A | 558.8 | 736.6 | 225.425 | 177.8 |
| BT2B 328028/HA1 | 711.2 | 914.4 | 190.5 | 139.7 |
| 331554 A | 723.9 | 914.4 | 187.325 | 139.7 |
| BT2B 331554 B/HA1 | 723.9 | 914.4 | 187.325 | 139.7 |
| BT2B 332501/HA5 | 914.4 | 1066.8 | 193.7 | 101.6 |
| BT2B 332780/HA5 | 1160 | 1540 | 400 | 290 |
Recommended Reading
Frequently Asked Questions (FAQs)
Q: How do Double row tapered roller bearings handle axial loads?
A: These bearings are designed to carry axial loads in both directions due to the angles of the tapered rollers, which can adjust based on the load capacity and application requirements.
Q: What are the key advantages of Double row tapered roller bearings?
A: These bearings offer high load carrying capacity, enhanced stiffness, low friction, and are designed to run with minimal noise and heat generation.
Q: What materials are used in Double row tapered roller bearings?
A: Typically, high-quality steel is used for the rollers and raceways, with specialized coatings or treatments for increased wear resistance and operational longevity.
Q: Can Double row tapered roller bearings be used in high-speed applications?
A: Yes, while primarily designed for heavy loads, these bearings can also accommodate high rotational speeds depending on the specific design and lubrication used.
Q: How does the design of Double row tapered roller bearings reduce friction?
A: The optimized roller end design and surface finish on the flange of the bearing promote efficient lubricant film formation, resulting in lower friction.
Q: In what industries are Double row tapered roller bearings commonly used?
A: These bearings are widely used in industries such as automotive, construction equipment, machine tools, and heavy machinery, where both radial and axial load capacities are critical.
Q: What are the lubrication requirements for Double row tapered roller bearings?
A: Proper lubrication is essential for minimizing friction and wear, with options including grease and oil, depending on the speed and temperature conditions of the application.
Q: What is the typical service life of Double row tapered roller bearings?
A: With proper maintenance, including regular lubrication and correct mounting, these bearings can provide a long service life, even under challenging operating conditions.
Q: Can Double row tapered roller bearings be customized for specific applications?
A: Yes, bearings can be tailored for specific applications with custom dimensions, coatings, or preload settings to meet the unique demands of various industries.