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Wear Resistant Flat Thrust Bearing GCr15 51110 Thrust Bearing For Transmission Systems
51110 Thrust Ball Bearing: 50mm ID, 70mm OD, 14mm Thick For Transmission Systems
The 51110 flat thrust bearing occupies a crucial position in the field of mechanical transmission. With its excellent design and reliable performance, it provides stable axial support for numerous pieces of equipment, ensuring their efficient operation.
Basic Dimensions
Inner Diameter (d): 50mm. Meticulously designed to fit a variety of standard shaft diameters, it forms a tight fit with the shaft, enabling efficient transmission of axial force and preventing shaft system displacement.
Outer Diameter (D): 70mm. It forms a reasonable ratio with the inner diameter, providing sufficient installation space for rolling elements and cage assemblies while conforming to compact equipment design trends.
Thickness (T): 14mm. The thickness design balances load-bearing capacity and operational flexibility, reducing friction between rolling elements and minimizing heat generation.
Structural Features
It adopts a separable structure, consisting of a shaft washer (interference-fit with the shaft and rotating with it), a housing washer (transition-fit with the equipment housing or support base and fixed in place), and a steel ball-cage assembly. This structure allows individual installation and disassembly of each component, greatly simplifying the equipment assembly process and facilitating maintenance.
Note: The 51110 flat thrust bearing can only bear unidirectional axial loads and cannot withstand radial loads. In practical applications, it needs to be paired with radial support components to form a complete shafting support solution.
Core Materials
Bearing Rings: High-carbon chromium bearing steel (SAE-52100 or GCr15) with hardness reaching HRC 60-64 after quenching and tempering. Features excellent wear resistance, fatigue resistance, and impact toughness. Stainless steel available for corrosive environments.
Rolling Elements: Bearing steel balls of the same material as the bearing rings with precision grinding. Ceramic rolling elements (silicon nitride) available for high-temperature, high-speed applications.
Cages: Conventional models use nylon materials (PA66) for lightweight, low friction, and self-lubricating properties. Stamped steel or brass cages used in high-speed or high-temperature environments.
Key Performance Parameters
Parameter
Value
Basic Dynamic Load Rating (C)
Approximately 28.8kN
Basic Static Load Rating (C₀)
Approximately 75.4kN
Limiting Speed (Grease Lubrication)
Approximately 3100r/min
Limiting Speed (Oil Lubrication)
Approximately 4800r/min
Applicable Temperature Range
-40℃ to 120℃ (extendable to 150℃ with special materials)
Lubrication Requirements
Grease Lubrication: Suitable for speeds ≤3000r/min. Lithium-based grease (Grade EP2) recommended with filling amount of 1/3-1/2 of bearing internal space.
Oil Lubrication: Applicable to high-speed (>3000r/min) or high-load conditions. ISO VG32 or VG46 extreme-pressure industrial gear oil recommended via oil bath or oil injection.
Typical Application Fields
Small and Medium-Sized Mechanical Equipment: Paper-feeding shaft support of printing machines, axial positioning of lifting mechanisms in small elevators
Transmission Systems: Axial support of reducer output shafts and motor end covers, axial limit of rotors in small compressors
Light Industry and Agricultural Equipment: Roller shafts of textile machinery, hydraulic system components of small tractors, main shafts of agricultural processing equipment
With its precise dimensions of 50mm inner diameter, 70mm outer diameter, and 14mm thickness, combined with a separable structure, high-quality wear-resistant materials, and stable load-bearing performance, the 51110 flat thrust bearing has become an ideal choice for many small and medium-sized machinery that require high axial support accuracy and space compactness.
Introduction:1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support.
2. Focusing on bearing production for 25 years, quality is our only guarantee3. Wafangdian Bearing Factory was... Introduction:1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support.
2. Focusing on bearing production for 25 years, quality is our only guarantee3. Wafangdian Bearing Factory was...