Application: Machine Tool Spindles, High Speed Applications
Type: Super Precision Angular Contact Ball Bearings
Elements: Ceramic Balls
Degree: 25° contact angle, high-capacity design
The ceramic material used for rolling elements in TKW super-precision bearings is a bearing grade silicon nitride in accordance with ISO 26602. It consists of fine elongated grains of beta-silicon nitride in a glassy phase matrix.
It provides a combination of favourable properties especially for high-speed bearings:
• high hardness
• high modulus of elasticity
• low density
• low coefficient of thermal expansion
• high electrical resistivity
• low dielectric constant
• no response to magnetic fields
Cages Of TKW Super Precision Bearings
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, windowtype, 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.
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 7001 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
What is Super Precision 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: 7001 ACE/HCP4A
The other design: 7001 CE/HCP4A, 7001 ACD/HCP4A, 7001 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
The ceramic material used for rolling elements in TKW super-precision bearings is a bearing grade silicon nitride in accordance with ISO 26602. It consists of fine elongated grains of beta-silicon nitride in a glassy phase matrix.
It provides a combination of favourable properties especially for high-speed bearings:
• high hardness
• high modulus of elasticity
• low density
• low coefficient of thermal expansion
• high electrical resistivity
• low dielectric constant
• no response to magnetic fields
Cages Of TKW Super Precision Bearings
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, windowtype, 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.
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 7001 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
What is Super Precision 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
