Application: Machine Tool Spindles, High Speed Applications
Type: Super Precision Angular Contact Ball Bearings
Elements: Ceramic Balls, Balls made of bearing grade silicon nitride Si3N4 (hybrid bearing)
Degree: ACE, 25° contact angle, high-speed E design
CERAMIC BALLS
Ceramic hybrid bearings deliver advanced performance characteristics that can be transformational in machine tools. TKW offers silicon nitride (Si3N4) ceramic balls as a standard option for angular contact ball bearings to achieve ultra-high machining speeds, in addition to a considerable array of advantages:
› Higher rigidity and rotational accuracy, enabling high-accuracy machining
› Lower sliding friction in high-speed applications
› Lower heat generation
› Higher seizure resistance
› Longer grease life due to low heat generation.
Super-precision angular contact ball bearings includes bearings in the following dimension series:
• Ultra light 718 series • Extremely light 719 series • Light 70 series • Robust 72 series
Application of High Speed Bearing 71902 ACE/HCP4A
Super-precision, high-capacity, universally matchable single row angular contact ball bearing
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
Depending on their series and size, single row super-precision angular contact ball bearings are fitted as standard with one of the following cages:
• a cotton fabric reinforced phenolic resin cage, window-type, outer ring centred, no designation suffix
• a glass fibre reinforced PEEK cage, window type, outer ring centred, designation suffix TNHA
• a carbon fibre reinforced PEEK cage, window-type, outer ring centred, no designation suffix
• a machined brass cage, window-type, outer ring centred, designation suffix MA
The lightweight polymer cages reduce inertial and centrifugal forces while maximizing the effectiveness of the lubricant.
Designation: 71902 ACE/HCP4A
Grade: P4A
The other design: 71902 ACD/P4, 71902 CD/HCP4, 71902 CD/P4
Application: Machine Tool Spindles, High Speed Applications
Type: Super Precision Angular Contact Ball Bearings
Elements: Ceramic Balls, Balls made of bearing grade silicon nitride Si3N4 (hybrid bearing)
Degree: ACE, 25° contact angle, high-speed E design
CERAMIC BALLS
Ceramic hybrid bearings deliver advanced performance characteristics that can be transformational in machine tools. TKW offers silicon nitride (Si3N4) ceramic balls as a standard option for angular contact ball bearings to achieve ultra-high machining speeds, in addition to a considerable array of advantages:
› Higher rigidity and rotational accuracy, enabling high-accuracy machining
› Lower sliding friction in high-speed applications
› Lower heat generation
› Higher seizure resistance
› Longer grease life due to low heat generation.
Super-precision angular contact ball bearings includes bearings in the following dimension series:
• Ultra light 718 series • Extremely light 719 series • Light 70 series • Robust 72 series
Application of High Speed Bearing 71902 ACE/HCP4A
Super-precision, high-capacity, universally matchable single row angular contact ball bearing
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
Depending on their series and size, single row super-precision angular contact ball bearings are fitted as standard with one of the following cages:
• a cotton fabric reinforced phenolic resin cage, window-type, outer ring centred, no designation suffix
• a glass fibre reinforced PEEK cage, window type, outer ring centred, designation suffix TNHA
• a carbon fibre reinforced PEEK cage, window-type, outer ring centred, no designation suffix
• a machined brass cage, window-type, outer ring centred, designation suffix MA
The lightweight polymer cages reduce inertial and centrifugal forces while maximizing the effectiveness of the lubricant.
