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S71908 ACD/HCP4A Super Precision Single Row Angular Contact Ball Bearing 7908 2RZ

Categories Precision Ball Bearings
Brand Name: CNBTZC or OEM
Model Number: S71908 ACD/HCP4A
Certification: IATF16949:2016
Place of Origin: China
MOQ: 1000
Price: Please contact us,thanks
Payment Terms: L/C,T/T
Supply Ability: 200000pcs per month
Delivery Time: 2-4 weeks
Packaging Details: plastic bag,box,carton,pallet
Part Number: S71908 ACD/HCP4A Angular Contact Ball Bearing
Structure: Angular Contact
Seals Type: Sealed,Seal on both sides,2RZ
Ring type: One-piece inner and outer rings
Lubrication: Grease
Replaceable With: SKF, NSK S7908A5SN24TRV1VP4
Coating: Without
Sealing: Without
Design: High-capacity D
Contact type: Normal contact (two-point contact)
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S71908 ACD/HCP4A Super Precision Single Row Angular Contact Ball Bearing 7908 2RZ

S71908 ACD/HCP4A 40*62*12 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Ceramic Balls High Speed

Super-precision, high-capacity design, single row angular contact ball bearing with seals


The S71908 ACD/HCP4A bearing,bore diameter is 40 mm, outside diameter is 62 mm,width is 12 mm,featuring precise dimensions, high static load capacity, P4A precision grade, and hybrid ceramic balls, delivers superior performance and reliability for applications requiring high rotational accuracy and stability.


Part NumberS71908 ACD/HCP4A
Bearing TypeAngular Contact
Measurement UnitMetric
DimensionsInner Bore Diameter (d)40 mm
Inner Bore Diameter Tolerance-0.006mm to 0
Outer Bore Diameter (D)62 mm
Outer Bore Diameter Tolerance-0.007mm to 0
Width (B)12 mm
Width Tolerance-0.2mm to 0
SpecificationsContact Angle25° (15°,40° Available)
MaterialHybrid (Chrome Steel Rings, Ceramic Balls)
Cage MaterialPhenolic
Number of Rows1 Single Row
Seal TypeSeal on both sides
Temperature Range-30°C to 150°C
LubricationGrease
Tolerance ClassP4A better than P4 (ABEC-7)
Weight0.1 kg
Matched ArrangementNo
Universal Matching BearingNo
PreloadNot applicable
Load and SpeedDynamic Radial Load11700 N
Static Radial Load8000 N
Reference Speed For Grease (r/min)24,000 rpm
Limiting Speed For Oil(r/min)38,000 rpm



What's the Performance Features of S71908 ACD/HCP4A Bearing?


The S71908 ACD/HCP4A angular contact ball bearing is engineered for high-precision and high-performance applications, featuring very tight tolerances suitable for precise machinery, the ability to handle both radial and axial loads simultaneously, high-speed operation with stability, low torque and friction for energy efficiency, enhanced rigidity for accuracy under heavy loads, durability with extended service life, effective performance across a wide temperature range.


What's the Applications of the S71908 ACD/HCP4A Bearing?


S71908 ACD/HCP4A as a high-precision angular contact ball bearing, is primarily used in industrial settings that require precise operation, high-speed performance, and the ability to withstand heavy loads. Below are its typical applications

1. Industrial Equipment and Mechanical Manufacturing

  • Machine Tools: Used in high-precision CNC machines and grinders for spindles and slides.

  • Gearboxes: Suitable for three-ring, vertical/horizontal gearboxes, offering high load capacity and stability.

  • Welding Equipment: Such as arc welders and gas shielded welders, designed for frequent start-stop cycles and high-speed operation.

2. Heavy Machinery and Engineering Equipment

  • Agricultural Machinery: Including tractors and grain processing equipment, handling complex loads and vibrations.

  • Smelting and Chemical Equipment: Like smelting plant machinery and evaporators, relying on heat resistance and sealing performance.

3. Precision Instruments and Specialized Equipment

  • Medical Devices: Such as insulating glass production lines and medical CT scanners, requiring high cleanliness and low friction.

  • Robotics: Currently in testing phase, potentially used in reducers or screw drive components.

  • Semiconductors and Precision Machining: Like ceramic engraving machines, benefiting from the corrosion resistance of hybrid ceramic balls.

4. General Machinery and Auxiliary Equipment

  • Packaging and Food Machinery: Multi-functional packaging machines and biscuit machinery, suitable for high-speed continuous operation.

  • Energy and Environmental Protection Equipment: Such as wind turbine units and kitchen exhaust purification devices.


CERTIFICATERoHS & REACH, IATF16949:2016
FeatureHigh Speed and Stiffness,High Running Accuracy,High Load Carrying Capacity
ServiceOEM&ODM Customized Services
SamplesPlease Contact Us
ServiceOnline Support,Professional Service
SizeStandard,For custom sizes ,please contact us
Factory ManufacturerYes

Quality S71908 ACD/HCP4A Super Precision Single Row Angular Contact Ball Bearing 7908 2RZ for sale
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