NTN-SNR bearings for tooling machines - manufacturer's highest quality and top standards
NTN-SNR's high precision bearings meet the highest demands for product performance.
The NTN-SNR ROULEMENTS Group is the third largest bearing manufacturer in the world, specialising in the development, design and manufacture of rolling bearings. Thanks to the successful combination of the two outstanding brands NTN and SNR, the company is recognised as a market leader in high-performance industries such as automotive, general engineering and aerospace. Each division focuses on a specific segment of the global market and is aligned with the customer's business.
NTN-SNR offers both high quality standard products and customised special solutions. With the widest product range on the market, the company's specialists develop different solutions for every requirement. Innovation and extensive industry experience are key factors in the company's successful development and enable the development of new solutions that give bearings new functions. More compact, lighter, more economical, more reliable, more efficient and more environmentally friendly are just some of the features that characterise the company's products.
By focusing on environmentally friendly solutions, NTN-SNR is recognised as a reliable partner and developer for companies that look to the future and are prepared to take advantage of all market opportunities.
Together, we are shaping tomorrow's world on our planet!
NTN-SNR's corporate policy is based on genuine human values. Customer focus, professionalism, quality and expertise have been the company's core values for a century. As an industry leader, NTN-SNR has an unparalleled commitment to people around the world, staying with people and at the centre of change in a rapidly changing world.
NTN-SNR machine tool bearings - precision, strength and high speed
From metal cutting to high-speed grinding, machine tools have always been the most important tool in most manufacturing processes. When the demands of manufacturing processes require tight tolerances, high precision and time-saving machining, the company's high precision bearings today cover the most demanding market segments in bearing technology. NTN's high precision bearings are successfully used in a wide range of industries, including medical, high-speed woodworking, automotive and heavy machinery, where maximum precision and system performance are required. These bearings are also successfully used in the process lines of our own factories, whose machines perform a variety of operations and tasks, from metal cutting to grinding and polishing.
For applications requiring higher speeds, NTN offers angular contact ball bearings with ceramic balls. The special properties of these bearings enable an increase in speed without overheating, as well as an increase in the rigidity of the bearing unit and a longer service life. SNR's high precision and high performance bearings are manufactured using precision machining and the latest measuring technology. The company also offers a wide range of ball screw support bearings, high speed double row angular contact ball bearings and cylindrical roller bearings, as well as high precision locknuts.
NTN-SNR Group's general specifications for high precision bearings for machine tools include:
- Universal or customised bearing pairs
- Rings and balls made of high quality 100 Cr bearing steel
- Bearings with contact angles of 15°, 17° and 25° (SNR range)
- Bearings with contact angles of 15°, 25°, 30°, 40° and 60° (NTN range)
- Four preload levels
- High precision angular contact ball bearings with seals
- Phenolic resin multi-layer cages, centred on the inner ring (SNR standard)
- Nylon cages (NTN standard)
- Machined brass cages (NTN standard for high precision cylindrical roller bearings)
- Bearing accuracy classes ISO4 (P4) and ISO2 (P2) and customised accuracy classes on request
- Bearing bore diameter from 10 mm to 240 mm
- Bearing outer diameter up to 420 mm
High precision bearings for machine tools
NTN's and SNR's combination of high precision and high speed bearings for machine tools can be used wherever the operating conditions of the machine require increased accuracy, long service life, low noise and high speed.
SNR's MACHLINE® product range
High precision standard bearings in the MACHLINE® range
71900V and 7000V series: the perfect compromise between performance and speed, rigidity, running accuracy and load capacity
7200G1 series:
- Specially designed for applications with predominantly high axial forces
- Design variants depending on the contact angle: C for 15°, H for 25°
- Design variants according to preload: light, medium, high
Hybrid versions (with ceramic balls) available on request
High speed bearings type ML of the MACHLINE series
Designed for the most demanding high-speed applications. Up to 30% higher permissible speed due to:
- Optimised internal geometry
- Reduced ball diameter
- Increased number of balls
- Optimised centring of the cage on the outer ring
Hybrid versions (with ceramic balls) available on request.
MACHLINE bearings with MLE seals
Nitrile seals with outer ring protection, no contact with the inner ring, achieve the same speeds as open bearings, factory lubricated.
Hybrid versions (with ceramic balls) available on request.
High precision self-locking locknuts
Essential for all high precision bearing assemblies, especially where preload and long term reliability of the bearing assembly must be guaranteed or where high axial loads occur.
ULTAGE product range from NTN
Radial angular contact ball bearings Standard series: 70U, 72, 78, 79U
- Optimised internal design
- Glass fibre reinforced polyamide cage for increased rigidity, reliability, improved ball guidance and significantly reduced running noise
- Bearings with contact angles of 15° (C), 25° (AD) and 30° (-)
- Hybrid version with ceramic balls is available (prefix 5S in the bearing designation)
HSE Series High Speed Bearings
- Special bearing steel 2LA
- Optimised internal structure and high surface quality
- Phenolic resin cage
- Increased bearing availability, improved wear resistance, lower operating temperatures at maximum permissible speeds
- Bearings with contact angles of 15° (C), 25° (AD) and 30° (-)
- Hybrid version with ceramic balls available (prefix 5S in bearing designation)
HSF Series Ultra High Speed Bearings
- Special bearing steel 2LA
- Reduced diameter ceramic balls (prefix 5S in bearing designation)
- Reduced operating temperature at maximum permissible speeds and increased bearing life
- Bearing with contact angle: 25° (AD)
Sealed Bearing Series
Standard Bearing Type LLB
- 70 and 79 Series
- Bearings with contact angle 15° (CD), 25° (AD)
High speed bearings BNS LLB
- BNS0 and BNS9 series
- Bearings with contact angle 15° (CD), 25° (AD) and 30°
Cylindrical roller bearings
Double row: Standard bearing type NN (U)49 (K), NN30 (K), High speed bearing type NN30 HS (K)
- Machined brass cage
Single row: N Series, High Speed HS and Ultra High Speed HSR
- High strength machined brass cage for HS bearing
- Special moulded plastic cage for HSR bearings
- Optimised inner bearing designs enable higher speeds and lower operating temperatures
Ball screw support bearings
Type BST: open or closed single row bearings
- Improved raceway surface finish for longer bearing life and better resistance to fretting corrosion
- Sealed bearings are factory filled with a special long life grease which extends bearing life and simplifies maintenance of the bearing units.
Type BSTU: single or double row, with seals
- Highest rated load capacity
- Low friction contact seals
- Factory filled with special long life grease
- Simplified assembly
