Teach you to understand the logos and meanings on NSK bearings easily

What is updated for purchasing partners today is the professional knowledge about rolling bearings, so that they can understand the basic knowledge of the purchased raw materials when purchasing rolling bearings. Here, I would like to thank Mr. Zhang who provided the data and raw materials. Mr. Zhang specializes in selling well-known bearings at home and abroad. Brand, warmly welcome your attention, contact information: 13636672518, and also warmly welcome to add his WeChat number: 13636672518. Teach you to easily understand the logos and meanings behind NSK rolling bearings: 1 (1) Internal structure A——The internal structure design is different from the standard rolling bearing. A——Angular contact ball bearing, the contact angle is 30 degrees. A5——Angular contact ball bearing, the contact angle is 25 degrees. B——Angular contact ball bearing, the contact angle is 40 degrees. C——Angular contact ball bearing, the contact angle is 15 degrees. C——Tapered roller bearing, the contact angle is 20 degrees. D——Tapered roller bearing, the contact angle is 28 degrees. C, CA (with brass solid cage), CD (with stamping cage) - high load spherical roller bearings. E——High load cylindrical roller bearing. H——High load thrust spherical roller bearing. J——The small end diameter, angle, and width of the outer ring of the outer ring raceway of the tapered roller bearing are the same as the ISO requirements. 2 (2) Raw material g - ferrule, rolling body is carburized steel. H——ring, rolling element is stainless steel. 3 (3) cage M - copper alloy solid cage. T - synthetic resin cage. W——stamping processing cage. V——No cage. 4 (4) sealing ring, sealing cover Z, ZS - one side with a thick steel sealing cover. ZZ, ZZS——with thick steel plate sealing covers on both sides. D, DU—one side with a contact seal. DD, DDU - with contact seals on both sides. V—one side with a non-contact sealing ring. VV—with non-contact sealing rings on both sides. 5 (5) Ferrule shape K - conical hole, taper 1:12. K30——Conical hole, taper 1:30. E - There are cutouts or oil injection holes on the ferrule. E4——There is an oil groove and an oil injection hole on the outer ring. N——The outer diameter of the outer ring has a stop groove. NR——The outer diameter of the outer ring has a stop groove and a stop ring. 6 (6) fit and liner DB - installed in pairs back to back. DF - installed in pairs face to face. DT - installed in pairs in series. +K——The outer ring is lined. +L——The inner ring is lined. +KL——The inner and outer rings are lined. 7 (7) Clearance C1 - the radial clearance of the radial bearing, which is smaller than the clearance of C2. C2——The radial clearance of the radial bearing is smaller than the standard Huai clearance. CN (omitted)——the radial standard clearance of the radial bearing. C3——The radial clearance of the radial bearing is larger than the standard Huai clearance. C4——The radial clearance of the radial bearing is larger than the clearance of C3. C5 - the radial clearance of the radial bearing, which is larger than the clearance of C4. CC1——cylindrical roller bearing (not interchangeable) radial clearance, which is smaller than CC2 clearance. CC2——cylindrical roller bearing (not interchangeable) radial clearance, which is smaller than the standard Huai clearance. CC——Cylindrical roller bearing (not interchangeable) radial standard clearance. CC3——Cylindrical roller bearings (not interchangeable) radial clearance, which is larger than the standard Huai clearance. CC4——cylindrical roller bearing (not interchangeable) radial clearance, which is larger than CC3 clearance. CC5——cylindrical roller bearing (not interchangeable) radial clearance, which is larger than CC4 clearance. MC1 - small and medium-sized, miniature ball bearing radial clearance, smaller than MC2 clearance. MC2 - small and medium-sized, miniature ball bearing radial clearance, smaller than MC3 clearance. MC3——Small and medium-sized, miniature ball bearing radial clearance standard Huai clearance. MC4——Small and medium-sized, miniature ball bearing radial clearance, which is larger than MC3 clearance. MC5——Small and medium-sized, miniature ball bearing radial clearance, which is larger than MC4 clearance. MC6——Small and medium-sized, miniature ball bearing radial clearance, which is larger than MC5 clearance. CM——The radial clearance of deep groove ball bearings and cylindrical roller bearings for electric motors. CT——The radial clearance of cylindrical roller bearings for electric motors. 8 (8) Tolerance level P0 (omitted) - the tolerance level conforms to the 0 level stipulated in the standard JIS. P6——The tolerance grade conforms to the 6th grade stipulated in the standard JIS. P6X——The tolerance level conforms to the 6X level specified in the standard JIS. P5——The tolerance grade conforms to the 5th grade stipulated in the standard JIS. P4——The tolerance grade conforms to the 4th grade stipulated in the standard JIS. P2——The tolerance grade conforms to the 2nd grade stipulated in the standard JIS. 9 (9) Special specification model X26 - the application ambient temperature is limited to within 150 degrees Celsius. X28——The application environment temperature is limited within 200 degrees Celsius. X29——The application ambient temperature is limited within 250 degrees Celsius. S11——Spherical roller bearing, the application environment temperature is limited within 200 degrees Celsius.

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