320 Series Single Row Tapered Roller Bearings
320 series tapered roller bearings offer metric standard dimensions and compact axial width for gearboxes, reducers, and wheel assemblies.
320 series metric bearing solution
Compact metric sizes for reliable transmission support.
What Makes 320 Series Tapered Roller Bearings Different?
A compact metric series for standard shafts, housings, and transmission assemblies.
Metric Standard
Designed for metric shafts, housings, and common industrial equipment.
Compact Width
Suitable for bearing positions with limited axial mounting space.
Combined Loads
Supports radial load and axial load in one direction.
Easy Selection
Common models include 32005, 32008, 32010, and 32016.
How to Read 320 Series Bearing Numbers
320 series bearing numbers use a metric code to identify the series and bore size.
Series Code
320 = metric tapered roller bearing series
Bore Code
20 = 100 mm bore diameter
Rule: bore diameter = bore code × 5 mm.
320 Series Bore Code Examples
Common models from 32020 and above.
| Bearing Number | Bore Code | Bore Diameter |
|---|---|---|
| 32020 | 20 | 100 mm |
| 32022 | 22 | 110 mm |
| 32024 | 24 | 120 mm |
| 32026 | 26 | 130 mm |
| 32028 | 28 | 140 mm |
| 32030 | 30 | 150 mm |
320 Series vs 329, 302 and 322 Series Bearings
Compare thin-section, compact, general-purpose, and heavy-duty metric tapered roller bearings to choose the right balance of mounting space, load capacity, and application requirements.
329 Series
The 329 series is usually selected when the bearing position requires a very compact cross-section.
- • Extra-light design for limited mounting space.
- • Suitable for light to moderate combined loads.
- • Useful where reduced bearing size and weight matter.
320 Series
The 320 series offers a compact metric design while providing stronger load support than thin-section types.
- ✓ Compact width with better load capacity than 329 series.
- ✓ Supports combined radial and axial loads.
- ✓ Commonly used in gearboxes, reducers, and wheel assemblies.
302 Series
The 302 series is a widely used standard metric tapered roller bearing series for general machinery.
- • Balanced design for common bearing arrangements.
- • Suitable for standard shafts and transmission systems.
- • Selected when space is less restricted.
322 Series
The 322 series has a wider section and is usually chosen for applications requiring higher load capacity.
- • Wider design for heavier radial and axial loads.
- • Suitable for demanding transmission and machinery systems.
- • Requires more axial mounting width than 320 series.
Selection tip: Choose 329 series for the most compact layout, 320 series for compact size with better load balance, 302 series for general use, and 322 series when higher load capacity is the priority.
Application Areas for 320 Series Tapered Roller Bearings
320 series single row tapered roller bearings are used in compact metric shaft arrangements where combined radial load, axial load, and reliable shaft positioning must be considered together.
Gearboxes
Suitable for gear shafts where helical or bevel gears generate combined radial and axial loads.
Reducers
Used in speed reducers and drive units that require stable shaft support in compact spaces.
Wheel Hubs
Mounted in opposed pairs to improve axial location, running stability, and shaft rigidity.
Industrial Equipment
Applied in conveyor drives, material handling systems, rotating shafts, and general machinery.
Frequently Asked Questions About 320 Series Tapered Roller Bearings
Find quick answers about bearing selection, mounting arrangement, clearance adjustment, and application suitability for 320 series single row tapered roller bearings.
What are 320 series single row tapered roller bearings used for?
320 series tapered roller bearings are commonly used in gearboxes, reducers, wheel hubs, agricultural machinery, construction equipment, and general industrial transmission systems. They are suitable for applications where radial loads and single-direction axial loads occur together.
Can 320 series tapered roller bearings support axial loads in both directions?
A single 320 series bearing mainly supports axial load in one direction. For axial loads in both directions, two tapered roller bearings are usually installed in an opposed arrangement, such as back-to-back or face-to-face mounting.
What is the advantage of the separable design?
The separable structure allows the inner ring assembly and outer ring to be mounted separately. This helps simplify installation, inspection, replacement, and maintenance, especially in gearboxes and machinery with limited assembly space.
How should axial clearance or preload be controlled?
Axial clearance or preload should be adjusted according to the bearing arrangement, load condition, speed, temperature, and rigidity requirement. For paired mounting, improper clearance may cause excessive heat, vibration, or reduced bearing life.
What information is needed for bearing selection?
To recommend a suitable bearing, it is helpful to provide the bearing model, shaft diameter, housing diameter, load direction, speed, lubrication method, operating temperature, and application type. If replacing an existing bearing, photos or sample dimensions can also help.
Can TEDIN provide equivalent models or customized support?
Yes. TEDIN can help check equivalent bearing models, confirm dimensional compatibility, and provide selection support based on your working conditions. Custom requirements such as precision, clearance, material, or packaging can also be reviewed according to the project.
Explore Related Single Row Tapered Roller Bearing Pages
Compare other single row tapered roller bearing options and quickly return to the parent category page for a broader view of TEDIN metric and inch series products.
Need 320 Series Single Row Tapered Roller Bearings?
Send your bearing number, cup and cone references, drawing, dimensions, or working conditions. TEDIN can help evaluate suitable 320 series single row tapered roller bearings or custom bearing solutions for your application.
Standard, inch-size, and custom tapered roller bearing inquiries are welcome.