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The Industrial turntable bearings is made of 42CrMo high-quality tempered steel, which has excellent comprehensive bearing capacity of axial, radial and overturning moment, and its surface hardness reaches HRC 55-62, ensuring 360-degree smooth and accurate rotation of heavy-duty machinery and can be purchased in batches.
up to 15000kN
Rated static load:
HRC 55-62
Raceway hardness:
≤ 0.05mm
Processing tolerance:
Compared with ordinary 50Mn steel, the toughness of the material is increased by 25%, showing excellent fracture resistance under high frequency impact load, and extending the fatigue life under extreme conditions by more than 2 years.
precision induction quenching process is adopted, the hardness depth is controlled at 3-5mm, and the surface wear resistance is increased by 60%, effectively preventing early spalling and metal pitting on the raceway surface.
Through precision grinding technology, the backlash is strictly controlled within 0.1mm, which greatly reduces backlash wear caused by transmission and realizes micron-level positioning accuracy and ultra-quiet operation.
with excellent anti-oil and anti-aging performance, can isolate more than 99% of dust, moisture and industrial particles, the bearing grease maintenance cycle extended from 200 hours to 500 hours.
the precision hole position designed according to the specification of grade 10.9 high-strength bolt and the pre-tightening force design of 70% yield limit completely solve the safety risk of bolt loosening of the equipment under high-frequency vibration environment.
set support, rotation, transmission, fixed in a modular design, compared to the split support system saves 30% of the installation space, significantly simplifying the design and assembly process of the host.
| Parameter Category | Specifications | Industry reference standards |
| Outer diameter range | 100mm – 5000mm | ISO 492 / DIN 620 |
| Main materials | 42CrMo, 50Mn, GCr15SiMn steel ball/roller | GB/T 3077-1999 |
| Surface hardness | 55 – 62 HRC (Rollerway Area) | Surface induction hardening process |
| Accuracy level | P0, P6, P5, P4 (customizable) | ISO/JIS Level |
| Gear type | Internal tooth type, external tooth type, and toothless type are available. | Involute cylindrical gears |
| Sealing material | NBR rubber / Fluororubber (FKM) | Double-lip seal design |
| Lubricating grease | Lithium-based grease No. 2 (NLGI 2) | Regular grease injection maintenance |
Compared with similar general-purpose rotary bearings, this product significantly improves the static load limit by 40% by optimizing the contact ratio between the radius of the raceway arc surface and the diameter of the steel ball, and is especially suitable for construction and mining equipment with complex forces. Its unique 42CrMo matrix not only provides high mechanical strength, but also maintains excellent impact toughness in the extreme cold environment of minus 40 degrees to avoid brittle fracture.
To solve the risk of overloading and failure of heavy-duty equipment: for tower cranes, cranes and other high cantilever equipment, through the reinforced three-row roller structure to balance the huge overturning moment, to ensure that the equipment is still structurally stable under extreme load.
To solve the gear bite vibration and tooth breakage fault: the tooth root is specially strengthened and the tolerance of 0.1mm tooth gap is strictly controlled to avoid the impact load caused by excessive backlash and greatly reduce the maintenance cost.
Solve the corrosion failure of marine and other extreme environments: salt spray corrosion-resistant materials are used in the sealing place and special coatings can be customized to solve the problem of raceway corrosion caused by sealing aging of port machinery in salt spray and acid rain environment.
suitable for excavators, truck cranes, rotary drilling rigs and other manufacturers. Meet the reliability requirements of heavy equipment for 24 hours continuous operation of rotating parts under high load and harsh site environment.
mainly for wind turbine yaw system, blade adjustment system and solar automatic tracking bracket. Ensure that outdoor power generation equipment in more than 20 years of all-weather stable operation.
provide core support for automatic filling lines, stacking robots, and precision rotary tables. Solve the core demands of high-frequency start-stop operation for micron-level positioning accuracy, low friction resistance and fast response.
used in CT scanner, X-ray rotating machine and other medical equipment. Provide ultra-quiet, vibration-free smooth rotation support to ensure the clarity of precision image acquisition and patient safety.
Our factory
A: 50Mn performance balance and high cost performance, suitable for conventional lifting and general industrial machinery; 42CrMo has better hardenability and low temperature toughness, suitable for heavy heavy, high impact load or cold working environment.
A: Under normal working conditions, grease is injected once every 500 hours; in special environments such as humid, dusty or high temperature, it should be shortened to 100-200 hours, and professional instruments should be used regularly to detect bolt pre-tightening torque.
A: It is usually caused by slight deformation caused by excessive flatness of the mounting surface, too small adjustment of gear backlash or uneven distribution of grease in the raceway. It is recommended to re-check the flatness of the support seat and adjust the gear backlash.
A: The maximum axial force, radial force and overturning moment of the equipment shall be provided for selection. According to these data, we will check on the load curve (Load Curve) to ensure that more than 1.5 times the safety factor is reserved.
A: Yes. We use a detachable seal groove design. If it is found that the seal is cracked and aging leads to grease leakage, stop the machine immediately to clean up foreign matters and replace the original sealing ring to prevent impurities from eroding the raceway.
A: Industry standards are usually controlled mm-0.25mm 0.1. For high-precision machine tools or automated worktables, precision grinding can be customized to control the backlash within 0.05mm.
The Industrial turntable bearings is made of 42CrMo high-quality tempered steel, which has excellent comprehensive bearing capacity of axial, radial and overturning moment, and its surface hardness reaches HRC 55-62, ensuring 360-degree smooth and accurate rotation of heavy-duty machinery and can be purchased in batches.
Rated static load:
up to 15000kN
Raceway hardness:
HRC 55-62
Processing tolerance:
≤ 0.05mm
Compared with ordinary 50Mn steel, the toughness of the material is increased by 25%, showing excellent fracture resistance under high frequency impact load, and extending the fatigue life under extreme conditions by more than 2 years.
precision induction quenching process is adopted, the hardness depth is controlled at 3-5mm, and the surface wear resistance is increased by 60%, effectively preventing early spalling and metal pitting on the raceway surface.
set support, rotation, transmission, fixed in a modular design, compared to the split support system saves 30% of the installation space, significantly simplifying the design and assembly process of the host.
Through precision grinding technology, the backlash is strictly controlled within 0.1mm, which greatly reduces backlash wear caused by transmission and realizes micron-level positioning accuracy and ultra-quiet operation.
with excellent anti-oil and anti-aging performance, can isolate more than 99% of dust, moisture and industrial particles, the bearing grease maintenance cycle extended from 200 hours to 500 hours.
the precision hole position designed according to the specification of grade 10.9 high-strength bolt and the pre-tightening force design of 70% yield limit completely solve the safety risk of bolt loosening of the equipment under high-frequency vibration environment.
| Parameter Category | Specifications | Industry reference standards |
| Outer diameter range | 100mm – 5000mm | ISO 492 / DIN 620 |
| Main materials | 42CrMo, 50Mn, GCr15SiMn steel ball/roller | GB/T 3077-1999 |
| Surface hardness | 55 – 62 HRC (Rollerway Area) | Surface induction hardening process |
| Accuracy level | P0, P6, P5, P4 (customizable) | ISO/JIS Level |
| Gear type | Internal tooth type, external tooth type, and toothless type are available. | Involute cylindrical gears |
| Sealing material | NBR rubber / Fluororubber (FKM) | Double-lip seal design |
| Lubricating grease | Lithium-based grease No. 2 (NLGI 2) | Regular grease injection maintenance |
Compared with similar general-purpose rotary bearings, this product significantly improves the static load limit by 40% by optimizing the contact ratio between the radius of the raceway arc surface and the diameter of the steel ball, and is especially suitable for construction and mining equipment with complex forces. Its unique 42CrMo matrix not only provides high mechanical strength, but also maintains excellent impact toughness in the extreme cold environment of minus 40 degrees to avoid brittle fracture.
To solve the risk of overloading and failure of heavy-duty equipment: for tower cranes, cranes and other high cantilever equipment, through the reinforced three-row roller structure to balance the huge overturning moment, to ensure that the equipment is still structurally stable under extreme load.
To solve the gear bite vibration and tooth breakage fault: the tooth root is specially strengthened and the tolerance of 0.1mm tooth gap is strictly controlled to avoid the impact load caused by excessive backlash and greatly reduce the maintenance cost.
Solve the corrosion failure of marine and other extreme environments: salt spray corrosion-resistant materials are used in the sealing place and special coatings can be customized to solve the problem of raceway corrosion caused by sealing aging of port machinery in salt spray and acid rain environment.
suitable for excavators, truck cranes, rotary drilling rigs and other manufacturers. Meet the reliability requirements of heavy equipment for 24 hours continuous operation of rotating parts under high load and harsh site environment.
mainly for wind turbine yaw system, blade adjustment system and solar automatic tracking bracket. Ensure that outdoor power generation equipment in more than 20 years of all-weather stable operation.
provide core support for automatic filling lines, stacking robots, and precision rotary tables. Solve the core demands of high-frequency start-stop operation for micron-level positioning accuracy, low friction resistance and fast response.
used in CT scanner, X-ray rotating machine and other medical equipment. Provide ultra-quiet, vibration-free smooth rotation support to ensure the clarity of precision image acquisition and patient safety.
A: 50Mn performance balance and high cost performance, suitable for conventional lifting and general industrial machinery; 42CrMo has better hardenability and low temperature toughness, suitable for heavy heavy, high impact load or cold working environment.
A: Under normal working conditions, grease is injected once every 500 hours; in special environments such as humid, dusty or high temperature, it should be shortened to 100-200 hours, and professional instruments should be used regularly to detect bolt pre-tightening torque.
A: It is usually caused by slight deformation caused by excessive flatness of the mounting surface, too small adjustment of gear backlash or uneven distribution of grease in the raceway. It is recommended to re-check the flatness of the support seat and adjust the gear backlash.
A: The maximum axial force, radial force and overturning moment of the equipment shall be provided for selection. According to these data, we will check on the load curve (Load Curve) to ensure that more than 1.5 times the safety factor is reserved.
A: Yes. We use a detachable seal groove design. If it is found that the seal is cracked and aging leads to grease leakage, stop the machine immediately to clean up foreign matters and replace the original sealing ring to prevent impurities from eroding the raceway.
A: Industry standards are usually controlled mm-0.25mm 0.1. For high-precision machine tools or automated worktables, precision grinding can be customized to control the backlash within 0.05mm.
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