Precision Tapered Roller Bearings for Industrial Applications
Reliable bearing solutions for automotive, heavy machinery, and custom OEM projects worldwide.
Tapered Roller Bearing Structure and Components
A tapered roller bearing has four main components: the cup, cone, tapered rollers and cage. The angled raceways support combined radial and axial loads. A single-row bearing carries axial load in one direction; an opposed pair can support axial loads in both directions.
The Cup (Outer Ring)
Fits into the housing and provides the outer raceway. It can be mounted separately from the cone assembly.
The Cone (Inner Ring)
Fits onto the shaft and forms an assembly with the rollers and cage. Its large-end rib guides the rollers.
Tapered Rollers
Transfer loads between the inner and outer raceways. Roller profiling helps limit stress concentration near the ends.
The Cage (Retainer)
Keeps the rollers spaced apart and retains them in the cone assembly. Material selection depends on speed, temperature and lubrication.
Replacement check: Verify the complete cup and cone designations before ordering. Matching dimensions alone do not confirm compatibility.
Tapered Roller Bearings Series
Explore single-row, double-row and four-row bearings, along with precision designs, matched sets and custom options. Compare the arrangements below, then visit the relevant page for dimensions, mounting details and selection support.
Single Row Tapered Roller Bearings
Support radial loads and axial loads in one direction. Opposed pairs provide axial support in both directions, with clearance or preload set during assembly.
Common uses: Industrial gearboxes, wheel hubs and paired shaft supports.
View Single Row Bearings →
Double Row Tapered Roller Bearings
Two opposed roller rows support radial and bidirectional axial loads. TDO and TDI designs use different ring arrangements, with specific mounting and clearance requirements.
Common uses: Reducers and heavy machinery requiring bidirectional axial support.
View Double Row Bearings →
Four Row Tapered Roller Bearings
Four roller rows provide high load capacity for roll-neck installations. Selection depends on the mill design, available mounting space, lubrication and sealing requirements.
Common uses: Work-roll and backup-roll bearing positions in rolling mills.
View Four Row Bearings →
Gamet Type Precision Tapered Roller Bearings
Designed for spindle arrangements where running accuracy is critical. Replacement selection requires checking the original designation, bearing arrangement and preload specification.
Common uses: Precision machine tool spindles and spindle rebuilds.
View Precision Bearings →Matched Tapered Roller Bearing Sets
Combine single-row bearings with precision spacer rings in DF, DB or DT arrangements. Matching controls the specified axial clearance, preload or overall set width.
Common uses: Gearboxes, rotary tables and shafts requiring controlled axial setting.
View Matched Bearing Sets →Custom Tapered Roller Bearings
Non-standard dimensions, structures and cage options reviewed from drawings, samples or existing bearing numbers. Specifications are confirmed against the equipment's mounting and operating requirements.
Common uses: OEM projects, equipment rebuilds and discontinued bearing replacement.
View Custom Bearings →Technical Specifications
Review TEDIN's tapered roller bearing size ranges, materials and specification options. Availability depends on the bearing series, dimensions and operating requirements.
| Specification | Range / Details |
|---|---|
| Bore Diameter (d) | 50–1,000 mm |
| Outside Diameter (D) | 80–1,200 mm |
| Overall Width (T) | 12–850 mm; overall assembly width is confirmed separately for matched sets. |
| Bearing Series & Options | Single-row, double-row, four-row and Gamet-type precision bearings; matched bearing sets and custom designs. |
| Precision Class | P5, P4 and P2 options on request, subject to bearing type and size. Applicable tolerances are confirmed for each model. |
| Cage Material | Stamped steel, brass, aluminum and selected custom cage options, depending on the bearing design and operating conditions. |
| Bearing Material | 100Cr6, 52100, GCr15, GCr15SiMn and G20Cr2Ni4A, selected according to design and heat treatment requirements. |
| Axial Clearance / Preload | Specified according to the bearing arrangement. Single-row bearings are adjusted during mounting; matched sets and multi-row assemblies can be supplied with an agreed axial setting. |
| Roller Profile | Crowned or logarithmic profiles, depending on the design, to help limit contact stress concentration near the roller ends. |
| Surface Treatment | Phosphate coating, black oxide and other treatments on request, subject to material and application review. |
| Custom Options | Non-standard dimensions, ring arrangements, cages, seals, materials, precision requirements and axial settings, subject to engineering review. |
| Replacement Support | Technical review of Timken, SKF, NSK, NTN, Koyo, Nachi and other bearing references. Replacement suitability is checked against dimensions, arrangement and operating requirements. |
Range note: These figures summarize the product range across different series; not every size combination is available. Confirm model-specific dimensions, load ratings and permissible speed before selection.
Need a Specific Model or Replacement?
Send the bearing number, drawing or sample photos, along with the load, speed and mounting requirements, for technical review.
Why Choose TEDIN for Tapered Roller Bearings?
Choosing a tapered roller bearing supplier involves more than matching dimensions. TEDIN reviews the bearing arrangement, loads and mounting conditions before confirming the production specification. Material selection, grinding, heat treatment and inspection then follow those requirements.
Bearing Steel Matched to Service Conditions
Chromium bearing steels and case-hardening steels meet different design needs. We select the material and hardening method with the bearing size, load and shock conditions in mind, rather than treating one steel grade as the best choice for every application.
Precision Where Fit and Rotation Matter
Grinding controls the ring and roller geometry that affects fit and running accuracy. We check dimensional tolerances and runout to the specified precision class, with particular attention to bearing positions where shaft alignment and accurate rotation matter.
Roller Profiles That Help Limit Edge Stress
Contact stress can concentrate near the roller ends under load or misalignment. Crowned or logarithmic profiles help limit this concentration. The appropriate profile depends on the bearing geometry and operating conditions.
Hardening for Wear Resistance and Toughness
Through-hardening and case-hardening provide different combinations of surface hardness and core properties. We match the process to the selected steel and bearing design, with hardness and case-depth requirements defined where applicable.
Key Bearing Checks Before Shipment
Inspection covers the dimensions, geometry, running accuracy and axial setting specified for the order. CMM and roundness measurements support geometry checks, while inspection report requirements can be agreed before production.
A Practical Route to Non-Standard Bearings
When a catalog bearing does not fit, send a drawing, sample or existing bearing number. We review the mounting dimensions and operating conditions to identify a suitable custom or replacement design, including cage options and axial setting where needed.
Explore Custom BearingsTapered Roller Bearing Applications
Tapered roller bearings support combined radial and axial loads in vehicle, machinery and industrial shaft arrangements. Selection depends on the bearing position, load direction, speed and required axial setting.
Industrial Gearboxes
Opposed bearing pairs and matched sets support gear shafts under combined loads. In industrial gearboxes, clearance or preload must account for gear forces, mounting fits and thermal expansion.
Automotive & Transportation
Wheel hubs, axle assemblies and transmission shafts use tapered roller bearings in selected mounting arrangements. The vehicle design determines the load capacity, fits and axial setting needed for each bearing position.
Steel & Rolling Mills
Multi-row tapered roller bearings are used in work-roll and backup-roll neck positions in rolling mills. Bearing arrangement, assembly clearance and lubrication are selected around the mill layout and operating loads.
Mining & Construction
Selected shaft supports and drive units in mining equipment and construction machinery operate under shock loads and contamination. Cage design, sealing and lubrication must be considered alongside bearing capacity.
Precision Machine Tools
Our machine tool bearings range includes precision tapered roller bearing solutions for selected machine tool spindles and rotary tables. Running accuracy, stiffness, preload and thermal behavior guide the selection.
Agricultural Machinery
Selected axle, hub and transmission positions in tractors and harvesters use tapered roller bearings for combined loads. Variable duty cycles and exposure to dust or moisture make assembly sealing and lubrication important.
Bearing Ring and Roller Manufacturing at TEDIN
In-house ring and roller production connects component manufacturing with assembly requirements. Machining and inspection follow the dimensions, geometry and material specifications defined for each order.
Raceway Geometry and Surface Control
Turning and grinding establish the dimensions and geometry of inner and outer rings. Raceway form, dimensional tolerances and surface roughness are checked against the production specification before assembly.
Roller Geometry and Size Consistency
In-house production supports control of roller dimensions, contact profiles and size grouping. For tapered roller bearings, the specified profile helps limit edge stress, while consistent dimensions support matching during assembly.
Inspection Against Order Specifications
Dimensional measurements, geometry checks and hardness testing verify specified production requirements. CMM inspection supports ring geometry checks, with inspection scope and report requirements agreed for the order.
Tapered Roller Bearing Replacement Cases
Precision bearing replacement projects for roll grinder spindles and CNC rotary axes.
Gamet-Type Bearing Replacement
A heavy-duty roll grinder could not meet running accuracy requirements after spindle assembly.
Engineering focus: Raceway and roller geometry control, with clearance matched to the spindle assembly.
Verified result: Machine acceptance requirements met, followed by batch delivery.
View Case Study
Matched Bearings for a CNC B-Axis
A five-axis CNC machine tool required a matched tapered roller bearing set for its rotary B-axis.
Application requirements: High rigidity, smooth tilting motion and stable positioning accuracy.
Engineering focus: Matched-set configuration, precision grinding and final pair verification.
View Case StudyTapered Roller Bearings Purchasing Guide
Key information for quotations, bearing replacement, custom orders and supply planning.
What information should I provide for a quotation?
Start with the bearing model or drawing, required quantity and delivery destination. If available, include the application, precision grade, cage requirements and any specified clearance or preload. For replacement projects, bearing markings, photos and mounting dimensions help us review the specification. If some details are unknown, send the information you have for an initial review.
Can TEDIN cross-reference an existing bearing model?
TEDIN can review part numbers, drawings, dimensions, photos or samples to assess a replacement option. Matching dimensions alone does not confirm interchangeability. Precision, load ratings, mounting interfaces and assembly settings also need to be checked. Paired or multi-row arrangements may require review of the complete bearing set.
Do you supply standard and custom tapered roller bearings?
Yes. TEDIN supplies standard models and reviews custom requirements based on drawings, samples or application data. Options may include dimensions, precision grade, cage design and matched-set configuration. Custom specifications are subject to technical review, with load capacity assessed against the proposed design and operating conditions.
What is the minimum order quantity? Can I place a trial order?
MOQ and trial-order availability depend on the model, bearing size, stock status and production requirements. Custom or matched bearing sets may have different minimum quantities from standard models. Send the specification and preferred trial quantity so we can confirm a suitable order arrangement.
How is the delivery time confirmed?
Lead time is confirmed after reviewing the specification, quantity, stock availability and production schedule. Custom orders may require additional time for drawing approval, manufacturing and inspection. Please include your required delivery date and destination so production lead time and shipping time can be considered separately.
What inspection reports and quality documents are available?
Inspection reports and supporting quality documents can be agreed according to the bearing specification and order scope. If you require material documentation, dimensional results, running accuracy measurements or third-party inspection, confirm the document list and acceptance criteria before placing the order.
Can TEDIN support bulk orders and scheduled deliveries?
Yes. TEDIN supports bulk purchasing and repeat-order supply planning for OEMs, distributors and industrial users. Provide the bearing specifications, estimated demand and requested delivery schedule so batch quantities, inspection requirements and delivery arrangements can be reviewed together.
What packaging is available for export orders?
Packaging is selected according to bearing size, quantity and transport method, with protection for storage and shipment. Specify any special labeling, individual packing or storage requirements before ordering. For matched bearing sets, set identification and packing arrangements should also be confirmed to help prevent components from being mixed.
Related Bearing Products
Explore other bearing categories for radial loads, axial loads, misalignment accommodation and high-speed precision applications.
Cylindrical Roller Bearings
High radial load capacity for motors, gearboxes, machine tools and heavy industrial equipment.
View Cylindrical Roller Bearings →
Spherical Roller Bearings
Self-aligning bearings for heavy radial loads and applications with shaft deflection or misalignment.
View Spherical Roller Bearings →
Thrust Roller Bearings
High axial load capacity for gearboxes, cranes, rolling mills and other heavy-duty machinery.
View Thrust Roller Bearings →
Angular Contact Ball Bearings
Combined radial and axial load support for high-speed spindles and precision rotating equipment.
View Angular Contact Ball Bearings →Need a Quote for Tapered Roller Bearings?
Send your bearing model or drawing, required quantity and delivery destination. If available, include application details and any precision, clearance or preload requirements. TEDIN can review your request for standard bearings, replacement options or custom solutions.