ZKLDF120

Inner diameter:
120 mm
Outer diameter:
210 mm
Width:
40 mm
Mass:
4.8 kg

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ZKLDF120

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Specifications

Seris - ZKLDF120

Rolling element type : Ball
Measurement system : Metric
Precision level : P4
Mass : 4.8 kg
Inner diameter (d) : 120 mm
Outer diameter (D) : 210 mm
Overall height (H) : 40 mm
H1 : 26 mm
D1 (MAX) : 185 mm
D2 : 159 mm
D3 : 181 mm
J : 135 mm
J1 : 195 mm
a : 6.2 mm
Fixing holes inner ring (d1) : 7 mm
Fixing holes inner ring (d2) : 11 mm
Fixing holes inner ring quantity : 22
Fixing holes outer ring (d3) : 7 mm
Fixing holes outer ring quantity : 21
Quantity Xt : 24X15°
Threaded extraction hole (G) : M8
Threaded extraction hole quantity : 3
Screw tightening torque (MA) : 14 Nm
Basic dynamic load rating,axial : 76000 N
Basic static load rating,axial : 315000 N
Limiting speed : 4300 rpm
Axial caL : 1.5 kN/μm
Radial crl : 0.4 kN/μm
Tilting rigidity ckl : 5.5 kNm/mrad
Rigidity of rolling element set axial cal : 2.5 kN/μm
Rigidity of rolling element set radial crl : 0.4 kN/μm
Rigidity of rolling element set tilting rigidity ckl : 8 kNm/mrad
Temperature : -30℃ to +120°C
Seal type : Open Type
ZKLDF120
Download ZKLDF120 Drawing

Description

Mass, Inner diameter (d), Outer diameter (D), Overall height (H), H1, D1 (MAX), D2, D3, J, J1, a, Fixing holes inner ring (d1), Fixing holes inner ring (d2), Fixing holes inner ring quantity, Fixing holes outer ring (d3), Fixing holes outer ring quantity, Quantity Xt, Threaded extraction hole (G), Threaded extraction hole quantity, Screw tightening torque (MA), Basic dynamic load rating,axial, Basic static load rating,axial, Limiting speed , Axial caL , Radial crl, Tilting rigidity ckl , Rigidity of rolling element set axial cal , Rigidity of rolling element set radial crl , Rigidity of rolling element set tilting rigidity ckl,

QIBR - ZKLDF120 Combined Precision Bearing Advantages and Applications

ZKLDF120 Combined Precision Bearing, high rigidity, high precision, Inner diameter (d) is 120 mm, Outer diameter (D) is 210 mm, Overall height (H) is 40 mm, Mass is 4.8 kg, suitable for port cranes, ladle turrets, reach stackers and stacker-reclaimers, etc., and is the most widely used bearing in working conditions with high precision requirements.

Mass, Inner diameter (d), Outer diameter (D), Overall height (H), H1, D1 (MAX), D2, D3, J, J1, a, Fixing holes inner ring (d1), Fixing holes inner ring (d2), Fixing holes inner ring quantity, Fixing holes outer ring (d3), Fixing holes outer ring quantity, Quantity Xt, Threaded extraction hole (G), Threaded extraction hole quantity, Screw tightening torque (MA), Basic dynamic load rating,axial, Basic static load rating,axial, Limiting speed , Axial caL , Radial crl, Tilting rigidity ckl , Rigidity of rolling element set axial cal , Rigidity of rolling element set radial crl , Rigidity of rolling element set tilting rigidity ckl,

QIBR - ZKLDF120 Combined Precision Bearing Characteristics

ZKLDF120 Combined Precision Bearing, long bearing life, save space and cost. ZKLDF120 Combined Precision Bearing, can withstand radial load, axial load and overturning moment, suitable for mechanical equipment with high stability requirements.

ZKLDF120 Combined Precision Bearing Features and Advantages

High load capacity: Combined precision bearing can withstand axial loads, radial loads, and overturning moments, making them suitable for high-load applications.

High Precision: The dimensional accuracy is at P5 level, and the rotational accuracy is at P4 level, ensuring high rotational precision.

Superior Rigidity: These bearings exhibit higher stiffness when subjected to overturning moments, maintaining good performance under high load conditions.

Low Operating Noise: They generate low noise during operation, making them ideal for use in noise-sensitive environments.

Application: Combined precision bearing are widely used in precision rotary tables, vertical grinding machines, indexing heads, gear hobbing machines, CNC machine tools, radar systems, and high-precision medical equipment.

QIBR - ZKLDF120 Combined Precision Bearing Optimization

High-performance materials: The bearing materials can be replaced based on different working conditions, such as GCr15, GCr15SiMn, S165M, etc.

Cage Material: The cage material can be replaced according to customer requirements, such as using 20# steel, brass, or polyamide nylon.

Grease Replacement: The grease can be substituted with other lubricants, such as Mobilith SHC 220 or Shell Gadus S2 V220.

Grease replacement: QIBR technicians can recommend grease according to the working conditions of the bearing or replace grease according to customer needs, such as Mobil, Shell, SKF, Fuchs and other brands.

More customization: QIBR can design and optimize bearings based on customer specifications and operational requirements.

QIBR - ZKLDF120 Combined Precision Bearing quality control

Dimension measurement: Various high-precision instruments are used to measure multiple dimensions of the bearings, achieving a maximum accuracy of 0.001mm.

Rotation accuracy: A dial gauge is employed to measure small defects or deviations on the bearing surface, with measurement accuracy reaching 0.001mm.

Hardness measurement: The surface hardness of the bearings is measured using a hardness tester, with an accuracy of ±0.5HRC.

Metallographic analysis: Professional metallographic microscopes are used to analyze the internal metallographic structure of the metal.

Geometric tolerance: A profile projector is used to measure the geometric shape and relative position of the bearings.

Noise monitoring: Vibration monitors are utilized to track the vibration conditions during operation, providing noise data.

Raw material control: Steel and components are sourced from suppliers with ISO 14001 certification, ensuring product stability while promoting sustainable development.

Features & Benefits

Precision Combined Bearing is a high-precision bearing unit that integrates radial bearings, thrust bearings, rolling elements (balls, rollers or needles), seals, lubrication structures and other modules. Its design optimizes the matching relationship between components to achieve high rigidity, high speed, and multi-directional load-bearing capacity, and is widely used in high-demand fields such as industrial automation, robots, and precision machine tools.
ZKLDF120
High-purity special high-quality bearing steel processed by high-speed forging + cold rolling process, and the raceway surface is carbonitrided.
High-purity special high-quality bearing steel processed by high-speed forging + cold rolling process, and the raceway surface is carbonitrided.
balls are rolling elements, which is the most crucial components of bearings and the most commonly used rolling elements in the bearing industry.
Steel cages feature high strength and a relatively light material, enabling them to withstand large loads and stresses.
Its role serves two purposes: Firstly, to prevent the loss of lubricating grease or oil inside the bearing, ensuring proper lubrication. Secondly, to shield the bearing from external dust or harmful gases, thus preventing damage.
Anti-Rust Oil for bearings

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