MATCHED BEARING SETS

Matched Tapered Roller Bearing Sets

Matched tapered roller bearing sets use two or more single row tapered roller bearings with precision spacer rings. They are supplied as ready-to-mount tapered roller bearing assemblies for face-to-face, back-to-back or tandem arrangements.

Face-to-Face Arrangement
Back-to-Back Arrangement
Tandem Bearing Sets
Spacer Matched Assembly
Matched tapered roller bearing set with precision spacer rings

Spacer Matched Assembly

Controlled clearance, preload and set width.

DF / DB / DT
Matched Set Structure

Single Row Bearings Matched with Spacer Rings

Matched tapered roller bearing sets are assembled from single row tapered roller bearings. Precision spacer rings help define the total set width, axial clearance or preload before mounting.

01

Single Row Bearings

Two or more single row bearing components are measured and supplied together as one matched bearing set.

02

Spacer Rings

Inner and outer spacer rings are used to define bearing ring position and maintain the required assembly width.

03

Controlled Setting

Axial clearance or preload can be controlled through bearing matching, spacer grinding and set verification.

04

DF / DB / DT

Matched sets are available for face-to-face, back-to-back and tandem bearing arrangements.

Note: this page covers matched single row tapered roller bearing sets with spacers, not integrated double row designs such as TDO bearings or TDI bearings.
Bearing Arrangements

DF, DB and DT Matched Bearing Sets

Matched tapered roller bearing sets are supplied in face-to-face, back-to-back or tandem arrangements to suit axial load direction, shaft rigidity and mounting space requirements.

DF face-to-face matched tapered roller bearing set
DF

Face-to-Face Arrangement

Suitable for bearing pairs that need axial location in both directions while allowing a limited amount of mounting misalignment.

  • Layout Face-to-face matched pair
  • Spacer Intermediate outer spacer
  • Setting Axial clearance or preload adjusted by spacer width
DB back-to-back matched tapered roller bearing set
DB

Back-to-Back Arrangement

Used for rigid shaft supports where higher moment stiffness, stable positioning and axial load capacity in both directions are required.

  • Layout Back-to-back matched pair
  • Spacer Intermediate inner and outer spacers
  • Setting Controlled axial clearance or preload
DT tandem matched tapered roller bearing set
DT

Tandem Arrangement

Used when two or more bearings are required to share axial load in the same direction.

  • Layout Tandem matched pair or group
  • Spacer Matched inner and outer spacers
  • Setting Load sharing in one axial direction
Selection Support

Custom Matching Based on Your Operating Conditions

For matched tapered roller bearing sets, the correct arrangement and spacer design should be selected according to load direction, mounting space and required axial setting.

Custom matched tapered roller bearing set inspection and assembly
Custom Matching

From Bearing Pair to Ready-to-Mount Set

TEDIN can supply matched single row tapered roller bearings with spacer rings prepared for the required clearance, preload or assembly width.

  • Arrangement review: DF, DB or DT layout based on shaft support and axial load direction.
  • Spacer matching: inner and outer spacer rings prepared to control the final bearing setting.
  • Application fit: suitable for gearboxes, rolling mills, heavy machinery and custom bearing positions.
Load Data

Radial and axial load direction

Arrangement

DF, DB, DT or custom layout

Setting

Clearance, preload or set width

Mounting

Shaft, housing and space limits

Inquiry tip: drawings, existing bearing numbers, target clearance or preload values can help us review the matched set more efficiently.
Applications

Where Matched Tapered Roller Bearing Sets Are Used

Matched single row tapered roller bearing sets are used in bearing positions where axial setting, load sharing and shaft support rigidity must be controlled during assembly.

01

Industrial Gearboxes

Used for industrial gearboxes requiring controlled axial clearance, preload or stable bearing positioning under combined loads.

02

Rolling Mills

Suitable for rolling mills where heavy radial loads, axial loads and rigid shaft support are required.

03

Mining Equipment

Applied in mining equipment applications such as crusher and conveyor systems, as well as heavy-duty rotating equipment operating under shock load and harsh conditions.

04

Heavy Machinery

Used in large shafts, transmission units and custom bearing housings where matched mounting dimensions are important.

05

Marine & Offshore

Used in drive systems and mechanical assemblies where reliable axial support and controlled bearing setting are required.

06

Industrial Drives

Suitable for drive units, reducers and rotating machinery using DF, DB or DT matched bearing arrangements.

Application note: matched tapered roller bearing sets are typically selected when standard single bearing mounting cannot provide the required axial setting, stiffness or load distribution.
Common layouts

DF, DB and DT arrangements for different load directions and shaft support requirements.

Inquiry Checklist

Information Needed for Matched Set Inquiry

To review a matched tapered roller bearing set, please provide the bearing number, arrangement type, required setting and application details.

Required Information

The following information helps us review the matched set structure, spacer design and quotation more efficiently.

01

Bearing Number or Drawing

Original bearing number, drawing, sample details or target dimensions.

02

Arrangement Type

DF, DB, DT or custom matched layout according to your shaft design.

03

Required Setting

Target axial clearance, preload value or final assembly width.

04

Load Direction

Radial load, axial load direction and any impact or reversing load.

05

Mounting Dimensions

Shaft, housing, spacer dimensions and available installation space.

06

Application Equipment

Gearbox, rolling mill, crusher, drive unit or other equipment details.

Tip: if the original bearing set is already in use, photos of the bearing, spacers and markings can also help identify the matched set.
FAQ

FAQ About Matched Tapered Roller Bearing Sets

Answers to common questions about matched single row tapered roller bearings, spacer rings, axial setting and bearing arrangements.

01

What is a matched tapered roller bearing set?

It is a bearing set assembled from single row tapered roller bearings with spacer rings or controlled mounting dimensions to achieve a required axial clearance, preload or set width.

03

What is the difference between DF and DB arrangements?

DF is a face-to-face arrangement and is often used where alignment tolerance is important. DB is a back-to-back arrangement and is commonly selected for higher moment rigidity and stable shaft support.

04

When should DT arrangement be selected?

DT, or tandem arrangement, is used when the bearing position must carry higher axial load mainly in one direction. It is usually reviewed according to the load direction and shaft design.

05

Can matched sets be supplied with preload?

Yes. Depending on the application, matched tapered roller bearing sets can be prepared for required preload, axial clearance or final assembly width. Drawings or target values are helpful for review.

06

What information is needed for quotation?

Please provide the bearing number, arrangement type, required clearance or preload, spacer dimensions, application equipment and drawings if available.

Need technical confirmation? Send the existing bearing number, spacer details or assembly drawing so we can review the matched set structure before quotation.
Request a Matched Set Review

Need a Matched Tapered Roller Bearing Set for Your Assembly?

Send us your bearing number, existing spacer dimensions, arrangement type or assembly drawing. TEDIN can review the required DF, DB or DT matched set, axial clearance, preload and overall mounting width before quotation.

Bearing Number DF / DB / DT Spacer Dimensions Clearance or Preload

Replacement samples, existing bearing codes, spacer drawings and custom matched tapered roller bearing inquiries are welcome.

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