Application: Machine Tool Spindles, High Speed Applications
Type: Super Precision Angular Contact Ball Bearings
Elements: Ceramic Balls
Degree: 25° contact angle, high-capacity 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.
Suffix of Super Precision Angular contact ball bearings
CD 15° contact angle, high-capacity design
ACD 25° contact angle, high-capacity design
CE 15° contact angle, high-speed E design
FE 18° contact angle, high-speed E design
ACE 25° contact angle, high-speed E design
CB 15° contact angle, high-speed B design
FB 18° contact angle, high-speed B design
ACB 25° contact angle, high-speed B design
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 high-capacity design 7201 ACD/HCP4A
What is Hybrid Bearings and Why Hybrid bearings?
Hybrid angular contact ball bearings (designation suffix HC) have rings made of bearing steel and rolling elements made of bearing grade silicon nitride (ceramic). As ceramic balls are lighter and have a higher modulus of elasticity and lower coefficient of thermal expansion than steel balls, hybrid bearings can provide the following advantages:
• higher degree of rigidity
• higher speed capability
• reduced centrifugal and inertial forces within the bearing
• minimized stress at the outer ring rolling contacts at high speeds
• reduced frictional heat • less energy consumption
• extended bearing and grease service life
• less prone to skid smearing damage and cage damage when subject to frequent rapid starts and stops
• less sensitive to temperature differences within the bearing
• more accurate preload/clearance control
Designation: 7201 ACD/HCP4A
Grade: P4A
Feature: high-capacity design
The other design: 7201 ACE/HCP4A, 7201 ACE/P4A, 7201 CE/P4A, 7201 ACD/P4A, 7201 CD/P4A, 7201 CD/HCP4A
Application: Machine Tool Spindles, High Speed Applications
Type: Super Precision Angular Contact Ball Bearings
Elements: Ceramic Balls
Degree: 25° contact angle, high-capacity 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.
Suffix of Super Precision Angular contact ball bearings
CD 15° contact angle, high-capacity design
ACD 25° contact angle, high-capacity design
CE 15° contact angle, high-speed E design
FE 18° contact angle, high-speed E design
ACE 25° contact angle, high-speed E design
CB 15° contact angle, high-speed B design
FB 18° contact angle, high-speed B design
ACB 25° contact angle, high-speed B design
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 high-capacity design 7201 ACD/HCP4A
What is Hybrid Bearings and Why Hybrid bearings?
Hybrid angular contact ball bearings (designation suffix HC) have rings made of bearing steel and rolling elements made of bearing grade silicon nitride (ceramic). As ceramic balls are lighter and have a higher modulus of elasticity and lower coefficient of thermal expansion than steel balls, hybrid bearings can provide the following advantages:
• higher degree of rigidity
• higher speed capability
• reduced centrifugal and inertial forces within the bearing
• minimized stress at the outer ring rolling contacts at high speeds
• reduced frictional heat • less energy consumption
• extended bearing and grease service life
• less prone to skid smearing damage and cage damage when subject to frequent rapid starts and stops
• less sensitive to temperature differences within the bearing
