TDO Double Row Tapered Roller Bearings
One double cup with two cone assemblies. TDO bearings use a back-to-back arrangement for rigid shaft support, two-way axial location, and improved moment load capacity in heavy-duty equipment.
Double Cup TDO Design
Built for combined loads, wider effective spread, and shaft positioning in both directions.
TDO Bearing Structure at a Glance
A TDO double row tapered roller bearing has one double cup and two cone assemblies. The back-to-back design gives the bearing a wider effective spread for rigid shaft support.
| Outer ring | One double cup |
|---|---|
| Inner ring | Two cone assemblies |
| Arrangement | Back-to-back |
| Axial load | Supported in both directions |
| Main advantage | Wider effective spread and higher moment stiffness |
| Setting | End play or preload can be controlled during assembly |
TDO Technical Supply Range
TEDIN supplies TDO bearings by bearing number, drawing, sample, or equipment requirement. Standard and custom designs are available.
TDO Series
Double cup with two cone assemblies for back-to-back arrangements.
Metric & Inch Sizes
Supplied by standard numbers, old part numbers, drawings, or samples.
Clearance / Preload
End play or preload can be checked according to assembly needs.
Steel or Machined Cage
Cage design selected according to load, speed, and working conditions.
Heavy-Duty Equipment
For gearboxes, reducers, wheel hubs, mining machinery, and shafts.
Standard or Custom
Replacement manufacturing for discontinued or special bearing numbers.
Send the bearing number, dimensions, drawing, quantity, application, and required setting for faster checking.
Send Bearing DetailsWhere TDO Bearings Are Commonly Used
Use TDO bearings when one position needs combined load support, two-way axial location, and higher shaft rigidity.
Radial + Axial Load
For positions carrying radial load and axial load in both directions.
Tilting Resistance
Back-to-back design helps resist moment load and shaft deflection.
Shock Load Conditions
Suitable for slow to medium speed positions with impact load.
Old Equipment Parts
Checked by bearing number, dimensions, drawing, or sample.
Key Inspection Points for TDO Bearings
Inspection focuses on dimensional accuracy, internal setting, raceway quality, and assembly consistency before shipment.
Dimensions
ID, OD, width, cup geometry, and cone dimensions are checked against drawing requirements.
Setting
End play or preload is checked according to the required operating condition.
Raceway
Raceway surface, roller contact area, and grinding finish are inspected.
Runout
Bearing runout is checked for stable rotation and accurate shaft positioning.
Assembly
Roller distribution, cage condition, and cone assembly consistency are verified.
Flanged Cup
Flange diameter, thickness, and location faces are inspected for flanged cup types.
Replacement and Interchange Support
Support for TDO bearing replacement projects based on existing bearing numbers, drawings, samples, or application requirements.
Need to replace an existing TDO bearing?
Tedin supports replacement and interchange projects for TDO double row tapered roller bearings. If the original bearing is discontinued, difficult to source, or requires a modified design, our team can review the available information and help confirm a suitable replacement solution.
Replacement review can be based on the existing bearing number, main dimensions, drawings, photos, samples, or actual working conditions. This is especially useful for maintenance, equipment rebuilds, and non-standard heavy-duty applications.
Identify
Send the existing bearing number, drawing, or photos of the current bearing.
Review
We check dimensions, structure, clearance, load direction, and application conditions.
Confirm
A standard, custom, or interchangeable TDO bearing solution can be recommended.
Information for Replacement
Please provide as much information as possible to speed up the interchange review.
- Existing bearing number or brand reference
- Bore, outside diameter, and total width
- Drawing, photos, or sample if available
- Application equipment and mounting position
- Load, speed, clearance, or preload requirement
- Quantity and expected delivery time
FAQ About TDO Double Row Tapered Roller Bearings
Answers to common purchasing, replacement, customization, and inspection questions for TDO bearings.
Can you quote if I only have an existing bearing number?
Yes. You can send the existing bearing number, brand reference, or interchange number. Our team will check whether a standard or custom TDO bearing can match the dimensional and application requirements.
Can TDO bearings be produced according to drawings or samples?
Yes. TDO double row tapered roller bearings can be produced according to drawings, samples, or confirmed dimensions. Key dimensions, clearance or preload, material, and working conditions should be reviewed before production.
Can you support non-standard or large size TDO bearings?
Yes. Tedin supports standard, large size, inch, metric, and non-standard TDO bearings according to project requirements. Customized cup design, cone assembly, cage, clearance, and preload can be discussed based on the application.
What information is needed for a TDO bearing quotation?
Please provide the bearing number, drawing or main dimensions, application equipment, load and speed, clearance or preload requirement, quantity, and delivery time. Photos or samples are helpful for replacement projects.
Can inspection records be provided with shipment?
Yes. Inspection records such as dimensional reports, hardness checks, clearance or preload checks, and material certificates can be provided upon request.
What if my application requires a different double row bearing design?
If the application requires a double cone structure instead of a double cup structure, you can also review our TDI double row tapered roller bearings page for comparison.
Need TDO Double Row Tapered Roller Bearings?
Send your bearing number, drawing, dimensions, or operating requirements. TEDIN can support TDO bearing replacement, custom production, and large-size tapered roller bearing supply for heavy-duty equipment.