TIMKEN 30203 Tapered Roller Bearing Set 17x40x13.25 (Cone & Cup)
Processing time: 2-3 days
€5.01
(net)
Price for: 1pcs.
The TIMKEN 30203 (17x40x13.25 mm) tapered roller bearing delivers outstanding precision, high load capacity, and long service life in both radial and axial applications.
Engineered to global ISO standards and tested for durability, this bearing is an optimal choice for wheel hubs, gearboxes, and general machinery.
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing
Specifications and applications of TIMKEN 30203 - tapered roller bearing for combined radial and axial loads
The TIMKEN 30203 tapered roller bearing (17x40x13.25 mm) is a precision-engineered cone & cup set designed for combined radial and axial loads. Its durable design and high-grade steel make it ideal for wheel hubs, transmissions, and industrial machinery.
Technical Description
Overview
The TIMKEN 30203 is a single-row tapered roller bearing (cone & cup assembly) featuring a bore diameter of 17 mm, an outside diameter of 40 mm, and a total width of 13.25 mm.
The tapered geometry allows this bearing to sustain radial and thrust loads simultaneously — a signature advantage of Timken’s precision manufacturing.
Key Features and Benefits
-
Tapered design: handles combined radial and one-directional axial forces efficiently.
-
Cone & Cup pairing: ensures precise alignment and controlled internal clearance.
-
High reliability: premium heat-treated steel extends lifespan and fatigue resistance.
-
Separable components: simplify assembly, inspection, and lubrication.
-
Cross-compatibility: matches both metric (17x40x13.25 mm) and inch equivalents, simplifying international sourcing.
Technical Data
| Parameter | Value | Description |
|---|---|---|
| Bore (d) | 17 mm | Inner diameter |
| Outer Diameter (D) | 40 mm | Outer ring size |
| Total Width (T) | 13.25 mm | Combined width |
| Bearing Type | Single-row tapered roller bearing | Cone + cup set |
| Load Direction | Combined radial & axial | — |
| Cage Material | Steel | Standard Timken design |
| Typical Dynamic Load (C) | ~22 000 N | — |
| Typical Static Load (C₀) | ~20 000 N | — |
Applications
-
Wheel and trailer hubs (light to medium duty)
-
Gearboxes and transmissions
-
Agricultural and construction equipment
-
Industrial drives, rollers, and mechanical assemblies
Installation & Maintenance Guidelines
-
Verify fit and tolerance according to shaft/housing design.
-
Apply proper preload or clearance - follow the machine manufacturer’s procedure.
-
Lubricate with high-quality bearing grease or oil suited to speed and temperature.
-
Avoid contamination during mounting; handle only with clean tools and surfaces.
-
Pair with suitable oil seals or simmerings to retain lubricant and prevent ingress of dirt.
Search Keywords Integrated Naturally
30203 tapered roller bearing, Timken 30203 bearing, 30203 cone & cup set, 17x40x13.25 tapered roller bearing, metric tapered roller bearing 30203, wheel hub bearing, industrial bearing Timken 30203.
FAQ
Q1: What does the code “30203” represent?
It identifies the bearing’s geometry, dimensions, and tapered roller design—a standard metric series recognized across all major manufacturers.
Q2: Is this bearing suitable for axial loads?
Yes. Its tapered rollers are engineered to support radial and axial loads simultaneously in one direction.
Q3: Can I use TIMKEN 30203 in a trailer or hub assembly?
Yes. This size (17x40x13.25 mm) is commonly fitted in wheel hubs, axles, and small industrial drives.
Q4: How should it be lubricated?
Use a high-temperature lithium or calcium-based grease, or appropriate bearing oil. Maintain clean conditions and service intervals.
Q5: What is the speed capability?
Depending on lubrication and preload, the reference speed typically reaches up to 19 000 rpm.
Q6: Is this bearing interchangeable with other brands?
Yes - it corresponds dimensionally to standard 30203 models from SKF, NTN, FAG, Koyo, and NSK.
30203 TIMKEN
Processing time: 2-3 days
Data sheet
- Diameter in. (mm)
- 17
- Diameter out. (mm)
- 40
- Height (mm)
- 13,25
- Mark
- TIMKEN
The TIMKEN 30203 (17x40x13.25 mm) tapered roller bearing delivers outstanding precision, high load capacity, and long service life in both radial and axial applications.
Engineered to global ISO standards and tested for durability, this bearing is an optimal choice for wheel hubs, gearboxes, and general machinery.
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing