Miniature Super Precision 708 CD/HCP4A Ball Bearings for Spindle Machine

Designation: 708 CD/HCP4A

The other design: 708 ACDGA/HCP4A, 708 ACD/HCP4A, 708 CD/HCP4ADBA, 708 CD/HCP4ADGA, 708 CDGA/HCP4A

Elements: Ceramic Balls

Contact Angle: 15 °

Dimension: 8*22*7mm

Weight: 0.012kg

Application: Machine Tool Spindles

Type: Super Precision Angular Contact Ball Bearings

Bearings for main spindles are available as:

• super precision angular contact ball bearings

• single row, as single bearings or in sets

• contact angle 15°, 25°

• with large or small balls

• rolling elements made from rolling bearing steel or ceramic

• rings made from rolling bearing steel or Cronidur

• Direct Lube bearings

• super precision cylindrical roller bearings

• single row

• double row

• rolling elements made from rolling bearing steel or ceramic

• cages made from brass, polyamide or PEEK

• super precision axial bearings , i.e. super precision axial angular contact ball bearings, super precision angular contact ball bearings BAX

• double direction

• contact angle 30°, 40°, 60°

• rolling elements made from rolling bearing steel

• rings made from rolling bearing steel

• cages made from brass, laminated fabric

Application of High Speed Bearing 708 ACDGA/HCP4A

These super-precision, high-capacity, single row angular contact ball bearings accommodate radial and axial loads acting simultaneously, where the axial load acts in one direction only. They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures. Being universally matchable, they can be used together in arrangements to provide effective load sharing, within a predetermined preload range, without the use of shims or similar devices.

• Very high running accuracy

• Very high load carrying capacity

• Relatively high speed and stiffness

• Universally matchable

708 Bearings we also can supply HQW 708/QC004149, GRW D608/602839 Bearings, and TKW Brand 708 bearings also finished testing by the customers, 

Advantages of 708 Bearings for turbo jet engine

■ Longer lifetime in comparison to conventional materials.

■ Exceptional corrosion resistance.

■ Improved mechanical properties due to very fine structure.

■ Low noise.

■ Standard temperature resistance to 150°C; with special heat treatment up to 400°C.

■ High chemical resistance.

■ Excellent emergency running capabilities when used in conjunction with ceramic balls