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| item | value |
| Type | Roller |
| Structure | Taper |
| Applicable Industries | Building Material Shops, Machinery Repair Shops, Retail, Construction works |
| Model Number | 32008 |
| Precision Rating | P0 P5 P6 |
| Number of Row | Single row |
| Product name | Tapered Roller Beairngs |
| Model | 32008 |
Overview of tapered roller bearings
Tapered roller bearing is composed of tapered outer ring and inner ring components (including rollers and cages), and its core design feature is that all tapered extension lines meet at the same point of the bearing axis. The axial bearing capacity is determined by the Angle of the outer raceway (contact Angle α). The larger α is, the stronger the axial load capacity is. Typical contact angles range from 10° to 19°, and the clearance can be accurately controlled by adjusting the axial position of the inner and outer rings, which is suitable for precision equipment.
Main categories and features of tapered roller bearings
1.Single row bearing (such as 30200 series)
The most basic form, bearing radial load and unidirectional axial load, need to pair with another bearing to balance the axial component force.
The advantages are flexible installation, adjustable clearance, widely used in automotive hub, gearbox and other fields.
2.Double row bearings (e.g. 35200 series)
Two sets of single row bearings back to back combination, improve radial and bidirectional axial bearing capacity, suitable for heavy machinery transmission system.
3.Four row bearings (e.g. 380000 series)
Specially designed for extremely heavy load, used for rolling mill and other equipment, four rows of rollers alternately distribute load, but the limit speed is low.
4.Sealed type bearing
Integrated rubber sealing ring, dust-proof and water-proof, prolong lubrication cycle, suitable for harsh working conditions.
Core advantages and industry applications of tapered roller bearings
1.Advantages:
High bearing capacity (better than angular contact ball bearings) and rigidity, suitable for heavy loads and impact loads.
The separated design simplifies installation and maintenance, and standardized components support global interchange.
2.Application Areas:
Automobile manufacturing: wheel hub, differential, transmission.
Heavy industry: rolling mill, mining machinery, metallurgical equipment.
Construction machinery: excavator, crane drive system.
Installation and maintenance points of tapered roller bearings
1.Axial clearance adjustment: according to the working conditions (speed, load, vibration), choose the adjustment method (nut, gasm, spring pretension), high-speed heavy load should be reserved for temperature rise clearance compensation.
2.Fault diagnosis:
Fatigue spalling: pitting of raceways is accompanied by periodic vibration, mostly due to poor lubrication or long-term overload.
Wear: particle pollution leads to rough raceway, need to strengthen sealing and lubrication management.
Installation and Adjustment (critical step) of tapered roller bearings
1.Clearance and pretension: this is the core technology of tapered roller bearing application.
Clearance: refers to the small clearance existing inside the bearing. Proper clearance is necessary to ensure lubrication and avoid excessive temperature rise.
Pretension: an axial force is applied during installation to generate negative clearance inside the bearing. Preloading can improve rigidity and rotation accuracy, but it will increase friction temperature rise and reduce life. It must be controlled precisely.
2.Pair installation:
Back to back (O-shaped arrangement) : provides strong torque rigidity, can effectively resist bending deformation of the shaft.
Face to face (X arrangement) : Better adaptability to thermal elongation of the shaft.
Series (T-shaped arrangement) : Used to withstand maximum axial load in a single direction.
With its unique design, tapered roller bearings are an irreplaceable choice for applications that require heavy radial and axial loads and high rigidity. The key to ensure the best performance and prolong the life of the equipment is to understand its working principle correctly and master the selection and installation adjustment skills.
PARAMETERS
| item | value |
| Type | Roller |
| Structure | Taper |
| Applicable Industries | Building Material Shops, Machinery Repair Shops, Retail, Construction works |
| Model Number | 32008 |
| Precision Rating | P0 P5 P6 |
| Number of Row | Single row |
| Product name | Tapered Roller Beairngs |
| Model | 32008 |
Overview of tapered roller bearings
Tapered roller bearing is composed of tapered outer ring and inner ring components (including rollers and cages), and its core design feature is that all tapered extension lines meet at the same point of the bearing axis. The axial bearing capacity is determined by the Angle of the outer raceway (contact Angle α). The larger α is, the stronger the axial load capacity is. Typical contact angles range from 10° to 19°, and the clearance can be accurately controlled by adjusting the axial position of the inner and outer rings, which is suitable for precision equipment.
Main categories and features of tapered roller bearings
1.Single row bearing (such as 30200 series)
The most basic form, bearing radial load and unidirectional axial load, need to pair with another bearing to balance the axial component force.
The advantages are flexible installation, adjustable clearance, widely used in automotive hub, gearbox and other fields.
2.Double row bearings (e.g. 35200 series)
Two sets of single row bearings back to back combination, improve radial and bidirectional axial bearing capacity, suitable for heavy machinery transmission system.
3.Four row bearings (e.g. 380000 series)
Specially designed for extremely heavy load, used for rolling mill and other equipment, four rows of rollers alternately distribute load, but the limit speed is low.
4.Sealed type bearing
Integrated rubber sealing ring, dust-proof and water-proof, prolong lubrication cycle, suitable for harsh working conditions.
Core advantages and industry applications of tapered roller bearings
1.Advantages:
High bearing capacity (better than angular contact ball bearings) and rigidity, suitable for heavy loads and impact loads.
The separated design simplifies installation and maintenance, and standardized components support global interchange.
2.Application Areas:
Automobile manufacturing: wheel hub, differential, transmission.
Heavy industry: rolling mill, mining machinery, metallurgical equipment.
Construction machinery: excavator, crane drive system.
Installation and maintenance points of tapered roller bearings
1.Axial clearance adjustment: according to the working conditions (speed, load, vibration), choose the adjustment method (nut, gasm, spring pretension), high-speed heavy load should be reserved for temperature rise clearance compensation.
2.Fault diagnosis:
Fatigue spalling: pitting of raceways is accompanied by periodic vibration, mostly due to poor lubrication or long-term overload.
Wear: particle pollution leads to rough raceway, need to strengthen sealing and lubrication management.
Installation and Adjustment (critical step) of tapered roller bearings
1.Clearance and pretension: this is the core technology of tapered roller bearing application.
Clearance: refers to the small clearance existing inside the bearing. Proper clearance is necessary to ensure lubrication and avoid excessive temperature rise.
Pretension: an axial force is applied during installation to generate negative clearance inside the bearing. Preloading can improve rigidity and rotation accuracy, but it will increase friction temperature rise and reduce life. It must be controlled precisely.
2.Pair installation:
Back to back (O-shaped arrangement) : provides strong torque rigidity, can effectively resist bending deformation of the shaft.
Face to face (X arrangement) : Better adaptability to thermal elongation of the shaft.
Series (T-shaped arrangement) : Used to withstand maximum axial load in a single direction.
With its unique design, tapered roller bearings are an irreplaceable choice for applications that require heavy radial and axial loads and high rigidity. The key to ensure the best performance and prolong the life of the equipment is to understand its working principle correctly and master the selection and installation adjustment skills.
PARAMETERS
