Bakelite Ball Knob
PDM
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Features of Ball Knobs
Round Ball Handle Knob Title:
Corrosion Resistance steel & stainless steel & aluminum & plastic thumb nuts ball knob bakelite for Machinery
Structural characteristics of Thumb Nuts:
Nut ball handle knob is a mechanical operating accessory with a standard spherical shape, primarily made of bakelite (phenolic resin). It is primarily assembled onto the operating ends of machine tools, valves, instruments, and manual tools using screws, threaded holes, or pins, and is used to transmit manually operated torque or thrust, enabling functions such as equipment start-stop, speed adjustment, and direction change.
The insulating, heat-resistant, and wear-resistant properties of bakelite, combined with the comfortable grip provided by its spherical structure, make it a classic operating component in the industrial field.
Modle Number:
Material: Bakelite, a thermosetting plastic with excellent mechanical strength and heat resistance.
Availiable in Stainless Steel,Steel,Aluminum,Iron or Other Materials.
The surface typically features a matte or semi-matte texture, with colors predominantly being black and brown.
Connector: Built-in metal threaded insert (commonly galvanized iron, stainless steel), specifications include M4-M20 metric threads, UNC/UNF imperial threads, and can also be customized with non-threaded smooth hole structure.
Through-hole type: The spherical handle has a through-hole in its center, suitable for bolt installation, allowing for flexible adjustment of the installation position.
Blind hole type: Equipped with a built-in metal threaded insert, it can be directly screwed onto the threaded rod of the equipment, providing stronger connection stability.
Non-threaded type: The center is a smooth round hole, which is fixed by a pin or a forcing screw, suitable for light-load operation scenarios.
| D | D1 | D6 | H | T |
| M4 X 0.7 | 16 | 8 | 15 | 6 |
| M5 X 0.8 | 16 | 8 | 15 | 7.5 |
| M5 X 0.8 | 20 | 12 | 18 | 7.5 |
| M6 X 1 | 16 | 8 | 15 | 9 |
| M6 X 1 | 20 | 12 | 18 | 9 |
| M6 X 1 | 25 | 15 | 23 | 9 |
| M8 X 1.25 | 25 | 15 | 23 | 12 |
| M8 X 1.25 | 30 | 16 | 28 | 12 |
| M8 X 1.25 | 32 | 18 | 29 | 12 |
| M8 X 1.25 | 36 | 17 | 33 | 18 |
| M8 X 1.25 | 40 | 20 | 37.5 | 12 |
| M10 X 1.5 | 32 | 18 | 29 | 15 |
| M10 X 1.5 | 36 | 17 | 33 | 15 |
| M10 X 1.5 | 40 | 20 | 37.5 | 15 |
| M10 X 1.5 | 45 | 20 | 43 | 15 |
| M10 X 1.5 | 50 | 22 | 48 | 15 |
| M12 X 1.75 | 40 | 20 | 37.5 | 18 |
| M12 X 1.75 | 45 | 20 | 43 | 18 |
| M12 X 1.75 | 50 | 28 | 48 | 18 |
Nut Ball Handle Knob Application:
Machine tool equipment: feed handwheels and speed adjustment knobs for lathes, milling machines, and drilling machines.
Valve fittings: On-off handles for manual gate valves, ball valves, and globe valves.
Instruments and meters: adjustment knobs for laboratory equipment and measuring instruments.
Light industrial machinery: Operating components of packaging machines, printing machines, and textile machines.
Security equipment: emergency operation handles for distribution boxes and switch cabinets.
Core advantages of the black nylon thumb nut:
Excellent insulation: Bakelite is non-conductive and can be directly used for the operating terminals of low-voltage electrical equipment, avoiding the risk of electric shock.
High temperature resistance and flame retardancy: It can operate for extended periods in extremely cold or hot environments, and is resistant to burning in the presence of open flames without dripping.
Wear-resistant and anti-aging: High surface hardness, not easily corroded by chemicals, no significant wear or deformation after long-term use.
Comfortable to hold: The spherical design conforms to the curvature of the palm, and the bakelite material provides a warm and smooth touch without a cold feeling, making it less prone to slipping during operation.
Features of Ball Knobs
Round Ball Handle Knob Title:
Corrosion Resistance steel & stainless steel & aluminum & plastic thumb nuts ball knob bakelite for Machinery
Structural characteristics of Thumb Nuts:
Nut ball handle knob is a mechanical operating accessory with a standard spherical shape, primarily made of bakelite (phenolic resin). It is primarily assembled onto the operating ends of machine tools, valves, instruments, and manual tools using screws, threaded holes, or pins, and is used to transmit manually operated torque or thrust, enabling functions such as equipment start-stop, speed adjustment, and direction change.
The insulating, heat-resistant, and wear-resistant properties of bakelite, combined with the comfortable grip provided by its spherical structure, make it a classic operating component in the industrial field.
Modle Number:
Material: Bakelite, a thermosetting plastic with excellent mechanical strength and heat resistance.
Availiable in Stainless Steel,Steel,Aluminum,Iron or Other Materials.
The surface typically features a matte or semi-matte texture, with colors predominantly being black and brown.
Connector: Built-in metal threaded insert (commonly galvanized iron, stainless steel), specifications include M4-M20 metric threads, UNC/UNF imperial threads, and can also be customized with non-threaded smooth hole structure.
Through-hole type: The spherical handle has a through-hole in its center, suitable for bolt installation, allowing for flexible adjustment of the installation position.
Blind hole type: Equipped with a built-in metal threaded insert, it can be directly screwed onto the threaded rod of the equipment, providing stronger connection stability.
Non-threaded type: The center is a smooth round hole, which is fixed by a pin or a forcing screw, suitable for light-load operation scenarios.
| D | D1 | D6 | H | T |
| M4 X 0.7 | 16 | 8 | 15 | 6 |
| M5 X 0.8 | 16 | 8 | 15 | 7.5 |
| M5 X 0.8 | 20 | 12 | 18 | 7.5 |
| M6 X 1 | 16 | 8 | 15 | 9 |
| M6 X 1 | 20 | 12 | 18 | 9 |
| M6 X 1 | 25 | 15 | 23 | 9 |
| M8 X 1.25 | 25 | 15 | 23 | 12 |
| M8 X 1.25 | 30 | 16 | 28 | 12 |
| M8 X 1.25 | 32 | 18 | 29 | 12 |
| M8 X 1.25 | 36 | 17 | 33 | 18 |
| M8 X 1.25 | 40 | 20 | 37.5 | 12 |
| M10 X 1.5 | 32 | 18 | 29 | 15 |
| M10 X 1.5 | 36 | 17 | 33 | 15 |
| M10 X 1.5 | 40 | 20 | 37.5 | 15 |
| M10 X 1.5 | 45 | 20 | 43 | 15 |
| M10 X 1.5 | 50 | 22 | 48 | 15 |
| M12 X 1.75 | 40 | 20 | 37.5 | 18 |
| M12 X 1.75 | 45 | 20 | 43 | 18 |
| M12 X 1.75 | 50 | 28 | 48 | 18 |
Nut Ball Handle Knob Application:
Machine tool equipment: feed handwheels and speed adjustment knobs for lathes, milling machines, and drilling machines.
Valve fittings: On-off handles for manual gate valves, ball valves, and globe valves.
Instruments and meters: adjustment knobs for laboratory equipment and measuring instruments.
Light industrial machinery: Operating components of packaging machines, printing machines, and textile machines.
Security equipment: emergency operation handles for distribution boxes and switch cabinets.
Core advantages of the black nylon thumb nut:
Excellent insulation: Bakelite is non-conductive and can be directly used for the operating terminals of low-voltage electrical equipment, avoiding the risk of electric shock.
High temperature resistance and flame retardancy: It can operate for extended periods in extremely cold or hot environments, and is resistant to burning in the presence of open flames without dripping.
Wear-resistant and anti-aging: High surface hardness, not easily corroded by chemicals, no significant wear or deformation after long-term use.
Comfortable to hold: The spherical design conforms to the curvature of the palm, and the bakelite material provides a warm and smooth touch without a cold feeling, making it less prone to slipping during operation.
