Japan NSK 45X75X16mm 7009CTRDULP4Y paired angular contact ball bearing

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Angular contact ball bearing description
Single row angular contact ball bearings are self-retaining units with solid inner and outer rings and ball and cage assemblies with polyamide, sheet metal or brass cages. The raceways of the inner and outer rings are offset from each other along the bearing axis. The bearings are available in open and sealed designs. Their angular adjustment facility is very limited.

Radial and axial load capacity
Single row angular contact ball bearings can support axial forces in one direction and high radial forces. They must be axially adjusted against a second bearing fitted in a mirror image arrangement.
The axial load carrying capacity is dependent on the contact angle; i.e. the larger the angle, the higher the load to which the bearing can be subjected. Due to the contact angle of 40°, these bearings can support high axial loads.
Universal design
Single row angular contact ball bearings of universal design have the suffix UA, UL or UO and are intended for fitting in pairs in an X, O or tandem arrangement or fitting in groups. These bearings can be fitted in any arrangement required. For tandem arrangements
The suffix UA indicates small axial internal clearance, the suffix ULindicates slight preload and the suffix UO indicates freedom from clearance in an X or O arrangement.When ordering bearings, the total quantity of bearings must be stated, not the number of bearing pairs or bearing groups.
Sealing
Bearings with the suffix 2RS have lip seals on both sides. ContactRS seals are suitable for giving protection against dust, contamination and damp atmospheres.
Operating temperature
Open angular contact ball bearings can be used at operating temperatures from –30 °C to +150 °C. Bearings with a diameterD > 240 mm are dimensionally stable up to +200 °C.Angular contact ball bearings with cages made from glass fibre reinforced polyamide are suitable for operating temperatures up to+120 °C, restricted by the cage material.Sealed bearings are suitable for operating temperatures from –30 °C to+110 °C, restricted by the lubricant and the seal material.
Cages
Angular contact ball bearings with solid cages made from glass fibre reinforced polyamide have the suffix TVP or TVH. Solid brass cages have the suffix MP.The bearings are also available with universally applicable sheet steel window cages (suffix JP).Check the chemical resistance of polyamide to synthetic greases and lubricants with EP additives.Aged oil and additives in the oil can impair the operating life of plastic cages at high temperatures.
The oil change intervals must be observed.
Features
Angular Contact Ball bearings are composed of Inner rings,Outer Rings,Balls and Cage.
a. Ring 's Material: Bearing Steel ZGCr15/GCr15
b. Balls' Material: Carbon chromium steel/Si3N4
c. Cage Material: Phenolic,Nylon,Plastic,Brass etc.
d. Angle: C -15°contact angle, AC-25°contact angle, B-40°contact angle
e. Tolerance Class: ABEC7,ABEC9 (P4,P2)
f. Preload: A-Light Preload , B-Medium Preload, C-Heavy Preload

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