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31
RONWIN
HS Code: 8431390000
3112, 3125, 3138,3151, 3176
Various loading ball diameter of 12mm, 25mm, 38mm, 51mm and 76mm for different loading requirement. It has a sturdy machined steel body with a bearing steel ball, a zinc-plated surface treatment, a base flange fixing, and is appropriate for use with a ball that is applied up or down.
| Model No. | Loading Capacity (kg) | Dimensions (mm) | Weight (g) | |||||||||
| Material | Suggest | Max. | d | D | h1 | h2 | H | L | P | a | ||
| 3112 | BS/CS | 8 | 15 | 12.7 | 24 | 3 | 17 | 24 | 45 | 35 | 4 | 180 |
| 3125 | BS/CS | 150 | 200 | 25.4 | 45 | 5.3 | 31.7 | 42 | 57 | 45 | 5.6 | 460 |
| 3138 | BS/CS | 300 | 400 | 38.1 | 60 | 12 | 37 | 62 | 76 | 58 | 7 | 2900 |
| 3151 | BS/CS | 450 | 550 | 51 | 102 | 14.3 | 64.7 | 98 | 127 | 102 | 11 | 5500 |
| 3176 | BS/CS | 600 | 700 | 76 | 135 | 15 | 95 | 125 | 170 | 135 | 16.5 | 11500 |
Often referred to as a "flange-mounted heavy-duty ball transfer bearing" or "flange-type heavy-duty ball transfer unit," this is a mechanical component designed to withstand substantial vertical loads while enabling smooth, low-friction, multi-directional movement.
Its core function is to convert sliding friction into rolling friction, allowing heavy equipment or loads to move easily and precisely in any direction on a horizontal plane.
The name can be precisely broken down into three key features:
Flange Mounting
The unit features a circular mounting flange with evenly distributed bolt holes.
This design ensures extremely secure and stable installation, better withstands heavy loads and impact forces, and prevents shifting or loosening under load.
Heavy-Duty
Refers to the product’s ability to withstand extremely high vertical downward pressure (rated dynamic/static load).
It utilizes high-load-capacity balls, special ball seat designs, and high-strength materials (e.g., hardened steel, stainless steel, sometimes chrome-plated balls).
Downward-Pointing
Clearly indicates the primary load-bearing direction.
The ball transfer unit is installed with the ball facing downward, meaning the load platform is above the ball, and the weight presses vertically onto the ball. The ball contacts and rolls against the track or bearing surface below.
Ball Transfer Unit
The core is a high-precision ball that rotates freely within a ball housing (socket). A single ball can create multiple rolling contact points in various directions.
Imagine a "marble" placed on the ground—you can push an object above it in any horizontal direction. The flange-mounted heavy-duty ball transfer unit industrializes and scales up this principle:
Load-Bearing: Heavy loads press onto the flange of the unit via the mounting platform, transferring force to the ball.
Guidance and Rolling: When the load platform needs to move horizontally, the ball rotates within its housing while rolling against the fixed track or surface below, enabling smooth, multi-directional movement.
Reset: High-quality ball transfer units feature precise housing structures and reset springs, ensuring the ball remains centered and slightly protruding when the load is removed or partially unloaded, ready for the next load-bearing cycle.
Extremely High Load Capacity: A single heavy-duty ball transfer unit can bear several tons to tens of tons (depending on the model), with even greater capacity when used in combination.
Very Low Friction Coefficient: Rolling friction is significantly lower than sliding friction, reducing the force required to move heavy loads by 80%–95%, saving energy and reducing equipment wear.
Precise and Flexible Movement: Enables accurate positioning and unrestricted directional movement, suitable for precision heavy equipment requiring adjustment.
Secure Installation and High Stability: The flange is fixed with multiple bolts, offering strong resistance to impact and lateral forces, ensuring long service life.
Wear Resistance and Maintenance-Free: Typically made of high-strength alloy steel with surface hardening and pre-filled high-performance grease, allowing long-term maintenance-free operation even in harsh industrial environments.
This component is a critical "joint" in heavy industry, large-scale equipment, and logistics systems.
Heavy Machinery Movement and Assembly:
Large molds (injection molds, die-casting molds) for moving, positioning, and alignment.
Installation and positioning of machine tools, stamping presses, marine engines, etc.
Maintenance platforms for wind turbine bearings.
Heavy Material Handling Systems:
Rotary platforms and turntables: For rotating, inspecting, and processing heavy products.
Skid loading systems: Sliding large equipment (e.g., transformers, reactors) into position without heavy lifting equipment.
Shipbuilding and aerospace: For moving large sections or fuselage components.
Specialized Industrial Fields:
Stage machinery: For moving large rotating stages, lift orchestras, etc.
Military and defense: For moving heavy radar systems, launch devices, etc.
Testing equipment: As mobile bases for heavy-duty vibration tables or fatigue testers.
Key Parameters:
Rated Dynamic/Static Load: Must be selected based on the maximum load, with a safety factor considered.
Flange Dimensions and Bolt Hole Pattern: Must match the mounting platform.
Ball Diameter and Material: Larger diameters generally offer higher load capacity; material selection should consider environmental factors (rust resistance, corrosion resistance).
Installation Height: Determines the gap between the load platform and the track surface.
Installation Points:
The mounting surface must be flat and sturdy to withstand bolt preload and load transmission.
When multiple ball transfer units are used in combination, ensure all ball tops are on the same level plane. Otherwise, the load will be borne by the highest few units, causing overload damage. Adjustable-height models or precision shims are often used.
The track or bearing surface must have sufficient hardness and smoothness (typically hardened steel or stainless steel plates) to provide a smooth rolling surface and reduce wear.
Bolts must be tightened to the specified torque and inspected regularly.
Flange-mounted heavy-duty downward universal balls are core components of modern heavy-duty translation technology. They make seemingly cumbersome movements flexible, precise, and efficient, providing a classic solution to the engineering challenge of 'how to easily move massive objects.' Their value lies not only in the performance of individual components but also in offering a modular, low-friction, and highly reliable mobility solution for heavy-duty engineering.
3112, 3125, 3138,3151, 3176
Various loading ball diameter of 12mm, 25mm, 38mm, 51mm and 76mm for different loading requirement. It has a sturdy machined steel body with a bearing steel ball, a zinc-plated surface treatment, a base flange fixing, and is appropriate for use with a ball that is applied up or down.
| Model No. | Loading Capacity (kg) | Dimensions (mm) | Weight (g) | |||||||||
| Material | Suggest | Max. | d | D | h1 | h2 | H | L | P | a | ||
| 3112 | BS/CS | 8 | 15 | 12.7 | 24 | 3 | 17 | 24 | 45 | 35 | 4 | 180 |
| 3125 | BS/CS | 150 | 200 | 25.4 | 45 | 5.3 | 31.7 | 42 | 57 | 45 | 5.6 | 460 |
| 3138 | BS/CS | 300 | 400 | 38.1 | 60 | 12 | 37 | 62 | 76 | 58 | 7 | 2900 |
| 3151 | BS/CS | 450 | 550 | 51 | 102 | 14.3 | 64.7 | 98 | 127 | 102 | 11 | 5500 |
| 3176 | BS/CS | 600 | 700 | 76 | 135 | 15 | 95 | 125 | 170 | 135 | 16.5 | 11500 |
Often referred to as a "flange-mounted heavy-duty ball transfer bearing" or "flange-type heavy-duty ball transfer unit," this is a mechanical component designed to withstand substantial vertical loads while enabling smooth, low-friction, multi-directional movement.
Its core function is to convert sliding friction into rolling friction, allowing heavy equipment or loads to move easily and precisely in any direction on a horizontal plane.
The name can be precisely broken down into three key features:
Flange Mounting
The unit features a circular mounting flange with evenly distributed bolt holes.
This design ensures extremely secure and stable installation, better withstands heavy loads and impact forces, and prevents shifting or loosening under load.
Heavy-Duty
Refers to the product’s ability to withstand extremely high vertical downward pressure (rated dynamic/static load).
It utilizes high-load-capacity balls, special ball seat designs, and high-strength materials (e.g., hardened steel, stainless steel, sometimes chrome-plated balls).
Downward-Pointing
Clearly indicates the primary load-bearing direction.
The ball transfer unit is installed with the ball facing downward, meaning the load platform is above the ball, and the weight presses vertically onto the ball. The ball contacts and rolls against the track or bearing surface below.
Ball Transfer Unit
The core is a high-precision ball that rotates freely within a ball housing (socket). A single ball can create multiple rolling contact points in various directions.
Imagine a "marble" placed on the ground—you can push an object above it in any horizontal direction. The flange-mounted heavy-duty ball transfer unit industrializes and scales up this principle:
Load-Bearing: Heavy loads press onto the flange of the unit via the mounting platform, transferring force to the ball.
Guidance and Rolling: When the load platform needs to move horizontally, the ball rotates within its housing while rolling against the fixed track or surface below, enabling smooth, multi-directional movement.
Reset: High-quality ball transfer units feature precise housing structures and reset springs, ensuring the ball remains centered and slightly protruding when the load is removed or partially unloaded, ready for the next load-bearing cycle.
Extremely High Load Capacity: A single heavy-duty ball transfer unit can bear several tons to tens of tons (depending on the model), with even greater capacity when used in combination.
Very Low Friction Coefficient: Rolling friction is significantly lower than sliding friction, reducing the force required to move heavy loads by 80%–95%, saving energy and reducing equipment wear.
Precise and Flexible Movement: Enables accurate positioning and unrestricted directional movement, suitable for precision heavy equipment requiring adjustment.
Secure Installation and High Stability: The flange is fixed with multiple bolts, offering strong resistance to impact and lateral forces, ensuring long service life.
Wear Resistance and Maintenance-Free: Typically made of high-strength alloy steel with surface hardening and pre-filled high-performance grease, allowing long-term maintenance-free operation even in harsh industrial environments.
This component is a critical "joint" in heavy industry, large-scale equipment, and logistics systems.
Heavy Machinery Movement and Assembly:
Large molds (injection molds, die-casting molds) for moving, positioning, and alignment.
Installation and positioning of machine tools, stamping presses, marine engines, etc.
Maintenance platforms for wind turbine bearings.
Heavy Material Handling Systems:
Rotary platforms and turntables: For rotating, inspecting, and processing heavy products.
Skid loading systems: Sliding large equipment (e.g., transformers, reactors) into position without heavy lifting equipment.
Shipbuilding and aerospace: For moving large sections or fuselage components.
Specialized Industrial Fields:
Stage machinery: For moving large rotating stages, lift orchestras, etc.
Military and defense: For moving heavy radar systems, launch devices, etc.
Testing equipment: As mobile bases for heavy-duty vibration tables or fatigue testers.
Key Parameters:
Rated Dynamic/Static Load: Must be selected based on the maximum load, with a safety factor considered.
Flange Dimensions and Bolt Hole Pattern: Must match the mounting platform.
Ball Diameter and Material: Larger diameters generally offer higher load capacity; material selection should consider environmental factors (rust resistance, corrosion resistance).
Installation Height: Determines the gap between the load platform and the track surface.
Installation Points:
The mounting surface must be flat and sturdy to withstand bolt preload and load transmission.
When multiple ball transfer units are used in combination, ensure all ball tops are on the same level plane. Otherwise, the load will be borne by the highest few units, causing overload damage. Adjustable-height models or precision shims are often used.
The track or bearing surface must have sufficient hardness and smoothness (typically hardened steel or stainless steel plates) to provide a smooth rolling surface and reduce wear.
Bolts must be tightened to the specified torque and inspected regularly.
Flange-mounted heavy-duty downward universal balls are core components of modern heavy-duty translation technology. They make seemingly cumbersome movements flexible, precise, and efficient, providing a classic solution to the engineering challenge of 'how to easily move massive objects.' Their value lies not only in the performance of individual components but also in offering a modular, low-friction, and highly reliable mobility solution for heavy-duty engineering.
