High-Quality Thrust Cylindrical Roller Bearings from China Suppliers and Factory - Model 811, 812 Series
Product Introduction
The cylindrical rollers are crowned to optimize raceway contact pressure distribution, enhancing axial load capacity and rigidity.
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These bearings are suitable for low-speed machinery requiring unidirectional axial load support, such as crane hooks, vertical water pumps, jacks, oil drilling rigs, and iron and steel manufacturing equipment.
The shaft washer, housing washer, and rolling elements can be installed separately, offering flexible and convenient assembly.
Cages
🔩 Thrust cylindrical roller bearings may use:
Molded glass fiber-reinforced polyamide 66 cages (designated as: TVPB, TVPB1).
Machined lightweight metal cages (designated as LPB).
Machined brass cages (designated as MB, MPB).
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These bearings can withstand very high unidirectional axial loads but cannot carry radial loads. They do not have self-aligning capability.
🔧 Thrust cylindrical roller bearings can be disassembled into:
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Thrust Cylindrical Roller & Cage Assembly
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Shaft Washer
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Housing Washer
The 811 series and 812 series thrust cylindrical roller bearings consist of a thrust cylindrical roller and cage assembly, a shaft washer, and a housing washer. The most critical component is the thrust cylindrical roller and cage assembly.
Frequently Asked Questions (FAQ)
Q
What is the main advantage of crowned cylindrical rollers in thrust bearings?
Crowned cylindrical rollers optimize the raceway contact pressure distribution, which significantly enhances axial load capacity and rigidity. This design helps reduce edge stress concentrations and extends the bearing's service life.
Q
What types of machinery are thrust cylindrical roller bearings suitable for?
These bearings are ideal for low-speed machinery that requires unidirectional axial load support. Typical applications include crane hooks, vertical water pumps, jacks, oil drilling rigs, and iron and steel manufacturing equipment.
Q
What cage materials are available for thrust cylindrical roller bearings?
Three cage types are available: molded glass fiber-reinforced polyamide 66 cages (TVPB, TVPB1), machined lightweight metal cages (LPB), and machined brass cages (MB, MPB). The choice depends on the operating environment and load requirements.
Q
Can thrust cylindrical roller bearings support radial loads?
No. Thrust cylindrical roller bearings are designed exclusively to carry very high unidirectional axial loads. They cannot support radial loads and do not possess self-aligning capability. If radial load support is needed, additional bearing arrangements must be used.
Q
Can the components of thrust cylindrical roller bearings be installed separately?
Yes. The shaft washer, housing washer, and rolling elements (thrust cylindrical roller and cage assembly) can all be installed separately. This separable design greatly simplifies mounting and maintenance procedures.
Q
What is the most critical component in the 811 and 812 series thrust cylindrical roller bearings?
In both the 811 series and 812 series, the most critical component is the thrust cylindrical roller and cage assembly. This assembly, together with the shaft washer and housing washer, forms the complete bearing unit and directly determines load-carrying performance.