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34
RONWIN
HS Code: 8431390000
3419, 3422, 3425, 3438, 3451
A heavy-duty ball transfer unit with bolt thread is a robust ball transfer component specifically designed to withstand extremely high loads and harsh operating conditions. It integrates an oversized, high-hardness ball and a sturdy housing with a heavy-duty bolt thread. Its core design objective is to provide omnidirectional, low-friction movement while ensuring structural integrity and long service life under high pressure, high impact, and continuous operation. It essentially serves as a "powerful joint" in industrial applications for moving extremely heavy loads.
Static Load Capacity: The maximum safe load (in tons or kN) it can bear in a stationary state.
Dynamic Load Capacity: The recommended load (in tons or kN) it can withstand while rolling.
Bolt Thread Specification: e.g., M20x2.5, M30x3.5, 1"-8UNF, etc.
Ball Diameter: Directly relates to load capacity and rolling smoothness.
Mounted Height: The total height after installation, affecting worktable design.
Material and Heat Treatment: The material and hardness of the ball and socket.
Operating Temperature Range: Determined by the grease and seal materials used.
| Model No. | Loading Capacity (kg) | Dimensions | Weight (g) | ||||||||
| Material | Suggest | Max. | d | D | h1 | h2 | H | h3 | M | ||
| 3419 | BS/CS | 60 | 70 | 19 | 42 | 3 | 33 | 58 | 25 | M12 | 250 |
| 3422 | BS/CS | 120 | 150 | 22 | 48 | 3 | 40 | 70 | 30 | M12 | 380 |
| 3425 | BS/CS | 150 | 200 | 25.4 | 55 | 4 | 46 | 81 | 35 | M16 | 700 |
| 3438 | BS/CS | 300 | 400 | 38.1 | 80 | 8 | 70 | 115 | 45 | M22 | 2100 |
| 3451 | BS/CS | 450 | 550 | 51 | 100 | 12 | 95 | 145 | 50 | M24 | 4400 |
This product typically consists of the following key components:
Heavy-Duty Ball:
Material: Typically uses ultra-high load-capacity materials such as high-carbon chromium bearing steel (GCr15), stainless steel hardened to HRC 60 or above (e.g., 440C), or surface-hardened alloy steel. Some versions may undergo phosphating or zinc plating to enhance rust resistance.
Size: The ball diameter is large, commonly ranging from 25mm to 100mm or even larger, to provide a larger contact area and greater load capacity.
Heavy-Duty Ball Socket/Race:
Made of hardened steel or high-strength bronze, precision ground to form a high-precision, low-friction pair with the ball, capable of uniformly distributing immense pressure.
Reinforced Housing and Bolt Thread:
Housing: Manufactured from high-strength steel via forging or precision casting, featuring a thick and robust structure to withstand significant radial and axial loads.
Bolt Thread: This is the key mounting component. Typically consists of metric coarse threads (e.g., M12, M16, M20, M30) or imperial UNC threads. The threaded section is short and strong, ensuring it can withstand high shear forces and bending moments, and can be securely screwed into threaded holes in the equipment base.
Sealing and Lubrication System:
Heavy-Duty Seals: Usually equipped with multiple seal rings (e.g., NBR or polyurethane seals) to effectively prevent the ingress of dust, metal chips, and moisture, adapting to harsh workshop environments.
Grease Fitting: Standard grease fittings (e.g., Zerk fittings) are included to facilitate regular replenishment of high-temperature or extreme-pressure grease, ensuring smooth operation and reduced wear under heavy loads.
Extremely High Load Capacity: Designed specifically for heavy-duty applications, with static load capacities reaching several tons and high dynamic load ratings.
Exceptional Durability and Impact Resistance: The rugged construction and high-quality materials enable it to withstand severe impact and vibration, resisting deformation or damage.
Omnidirectional Flexible Rolling: Maintains low-friction omnidirectional rolling even under high pressure, making the movement of heavy workpieces effortless.
Easy Installation and Maintenance: The bolt thread design allows for very straightforward installation – simply screw it into a pre-tapped hole and tighten. Standard lubrication interfaces facilitate easy maintenance.
Robust Sealing: Excellent sealing design ensures long life and reliability in harsh environments like those with dust and moisture.
High Temperature Resistance: Many models use high-temperature greases and materials, making them suitable for high-temperature applications such as welding platforms.
Its basic principle is the same as standard ball transfers, but reinforced for heavy loads:
Fixing: The entire ball transfer unit is securely installed onto workbenches, slides, or equipment bases via the heavy-duty bolt thread at its bottom.
Load Bearing: Heavy workpieces (e.g., steel billets, molds, large machinery components) press down on the ball. The weight is transferred through the ball to the heat-treated socket and reinforced housing.
Rolling: When the workpiece needs to be moved, a lateral force is applied. The ball rolls within its socket, converting sliding friction between the workpiece and the base into rolling friction, allowing very heavy objects to be moved with minimal force.
This component is a core part of heavy industry and is widely used in:
Mold Changing and Adjustment: Used on large presses and injection molding machines to support and move molds weighing tens of tons.
Steel Plate and Material Handling: Facilitates feeding, discharging, and positioning of steel plates on material storage racks, shearing machines, and laser cutting machine worktables.
Heavy Machinery Assembly and Maintenance: Used for moving large gears, bearing housings, and other components, facilitating alignment and installation.
Welding Positioners and Fixturing Platforms: Supports heavy welded structures and allows them to be easily rotated into the optimal welding position.
Shipbuilding and Heavy Vehicle Manufacturing: Used for moving large ship sections or vehicle frames.
The heavy-duty ball transfer unit with bolt thread is a powerful tool for solving the challenge of moving heavy materials. Through its reinforced structure, oversized hardened ball, and convenient bolt mounting method, it converts significant sliding friction into controllable rolling friction. This greatly reduces the labor intensity of moving heavy objects, improves work efficiency and equipment safety, making it an indispensable key component for labor-saving and automation in heavy industry.
3419, 3422, 3425, 3438, 3451
A heavy-duty ball transfer unit with bolt thread is a robust ball transfer component specifically designed to withstand extremely high loads and harsh operating conditions. It integrates an oversized, high-hardness ball and a sturdy housing with a heavy-duty bolt thread. Its core design objective is to provide omnidirectional, low-friction movement while ensuring structural integrity and long service life under high pressure, high impact, and continuous operation. It essentially serves as a "powerful joint" in industrial applications for moving extremely heavy loads.
Static Load Capacity: The maximum safe load (in tons or kN) it can bear in a stationary state.
Dynamic Load Capacity: The recommended load (in tons or kN) it can withstand while rolling.
Bolt Thread Specification: e.g., M20x2.5, M30x3.5, 1"-8UNF, etc.
Ball Diameter: Directly relates to load capacity and rolling smoothness.
Mounted Height: The total height after installation, affecting worktable design.
Material and Heat Treatment: The material and hardness of the ball and socket.
Operating Temperature Range: Determined by the grease and seal materials used.
| Model No. | Loading Capacity (kg) | Dimensions | Weight (g) | ||||||||
| Material | Suggest | Max. | d | D | h1 | h2 | H | h3 | M | ||
| 3419 | BS/CS | 60 | 70 | 19 | 42 | 3 | 33 | 58 | 25 | M12 | 250 |
| 3422 | BS/CS | 120 | 150 | 22 | 48 | 3 | 40 | 70 | 30 | M12 | 380 |
| 3425 | BS/CS | 150 | 200 | 25.4 | 55 | 4 | 46 | 81 | 35 | M16 | 700 |
| 3438 | BS/CS | 300 | 400 | 38.1 | 80 | 8 | 70 | 115 | 45 | M22 | 2100 |
| 3451 | BS/CS | 450 | 550 | 51 | 100 | 12 | 95 | 145 | 50 | M24 | 4400 |
This product typically consists of the following key components:
Heavy-Duty Ball:
Material: Typically uses ultra-high load-capacity materials such as high-carbon chromium bearing steel (GCr15), stainless steel hardened to HRC 60 or above (e.g., 440C), or surface-hardened alloy steel. Some versions may undergo phosphating or zinc plating to enhance rust resistance.
Size: The ball diameter is large, commonly ranging from 25mm to 100mm or even larger, to provide a larger contact area and greater load capacity.
Heavy-Duty Ball Socket/Race:
Made of hardened steel or high-strength bronze, precision ground to form a high-precision, low-friction pair with the ball, capable of uniformly distributing immense pressure.
Reinforced Housing and Bolt Thread:
Housing: Manufactured from high-strength steel via forging or precision casting, featuring a thick and robust structure to withstand significant radial and axial loads.
Bolt Thread: This is the key mounting component. Typically consists of metric coarse threads (e.g., M12, M16, M20, M30) or imperial UNC threads. The threaded section is short and strong, ensuring it can withstand high shear forces and bending moments, and can be securely screwed into threaded holes in the equipment base.
Sealing and Lubrication System:
Heavy-Duty Seals: Usually equipped with multiple seal rings (e.g., NBR or polyurethane seals) to effectively prevent the ingress of dust, metal chips, and moisture, adapting to harsh workshop environments.
Grease Fitting: Standard grease fittings (e.g., Zerk fittings) are included to facilitate regular replenishment of high-temperature or extreme-pressure grease, ensuring smooth operation and reduced wear under heavy loads.
Extremely High Load Capacity: Designed specifically for heavy-duty applications, with static load capacities reaching several tons and high dynamic load ratings.
Exceptional Durability and Impact Resistance: The rugged construction and high-quality materials enable it to withstand severe impact and vibration, resisting deformation or damage.
Omnidirectional Flexible Rolling: Maintains low-friction omnidirectional rolling even under high pressure, making the movement of heavy workpieces effortless.
Easy Installation and Maintenance: The bolt thread design allows for very straightforward installation – simply screw it into a pre-tapped hole and tighten. Standard lubrication interfaces facilitate easy maintenance.
Robust Sealing: Excellent sealing design ensures long life and reliability in harsh environments like those with dust and moisture.
High Temperature Resistance: Many models use high-temperature greases and materials, making them suitable for high-temperature applications such as welding platforms.
Its basic principle is the same as standard ball transfers, but reinforced for heavy loads:
Fixing: The entire ball transfer unit is securely installed onto workbenches, slides, or equipment bases via the heavy-duty bolt thread at its bottom.
Load Bearing: Heavy workpieces (e.g., steel billets, molds, large machinery components) press down on the ball. The weight is transferred through the ball to the heat-treated socket and reinforced housing.
Rolling: When the workpiece needs to be moved, a lateral force is applied. The ball rolls within its socket, converting sliding friction between the workpiece and the base into rolling friction, allowing very heavy objects to be moved with minimal force.
This component is a core part of heavy industry and is widely used in:
Mold Changing and Adjustment: Used on large presses and injection molding machines to support and move molds weighing tens of tons.
Steel Plate and Material Handling: Facilitates feeding, discharging, and positioning of steel plates on material storage racks, shearing machines, and laser cutting machine worktables.
Heavy Machinery Assembly and Maintenance: Used for moving large gears, bearing housings, and other components, facilitating alignment and installation.
Welding Positioners and Fixturing Platforms: Supports heavy welded structures and allows them to be easily rotated into the optimal welding position.
Shipbuilding and Heavy Vehicle Manufacturing: Used for moving large ship sections or vehicle frames.
The heavy-duty ball transfer unit with bolt thread is a powerful tool for solving the challenge of moving heavy materials. Through its reinforced structure, oversized hardened ball, and convenient bolt mounting method, it converts significant sliding friction into controllable rolling friction. This greatly reduces the labor intensity of moving heavy objects, improves work efficiency and equipment safety, making it an indispensable key component for labor-saving and automation in heavy industry.
