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2022 High quality Rubber Sealed Ball Bearings - NN3012KTN/SP Super-precision Double-row cylindrical roller bearing – CWL

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2022 High quality Rubber Sealed Ball Bearings - NN3012KTN/SP Super-precision Double-row cylindrical roller bearing – CWL Detail:

These bearings are therefore particularly well suited for machine tool spindles where the bearing arrangement must accommodate heavy radial loads and high speeds, while providing a high degree of stiffness, double row bearings are more suitable for heavier loads.

Double-row cylindrical roller bearings have two structures: cylindrical inner bore and conical inner bore (the bearing rear code plus K). The conical inner hole can also play the role of micro-adjustment of the clearance, and can simplify the structure of the positioning device and facilitate installation and disassembly.

Commonly used double row cylindrical roller bearings have the following types: NN series, NNU series, and NNF series.Tolerances: SP, UP, SP and UP for 1:12 tapered bore.

NN3012KTN/SP Super-precision Double-row cylindrical roller bearing Suffix description
K:Tapered Bore, Taper 1:12
TN: PA66 cage
SP:Special Precision Class For Machine Tool Bearings: Dimensional Accuracy Approximately To P5, Running Accuracy Approximately To P4

Super-precision cylindrical roller bearings are characterized by:
High speed capability
High radial load carrying capacity
High rigidity
Low friction
Low cross-sectional height

NN3012KTN/SP Double-row cylindrical roller detail Specifications

Main Dimensions
Bore diameter (d):60mm
Outer diameter(D):95mm
Width(B): 26mm
Limiting rating Pu:12.7Kn
Dynamic load ratings (Cr): 73.7KN
Static load rating (Cor): 106KN
Limiting speeds grease :9000 rpm
Limiting speeds oil:10000rpm

ABUTMENT DIMENSIONS
Abutment diameter shaft (da)min.:66.5mm
Abutment diameter housing(Da)min.:87mm
Abutment diameter housing(Da)max.:88.5mm
Oil nozzle position (not for variants with TNHA cage) dn:85mm


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2022 High quality Rubber Sealed Ball Bearings - NN3012KTN/SP Super-precision Double-row cylindrical roller bearing – CWL detail pictures


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We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for 2022 High quality Rubber Sealed Ball Bearings - NN3012KTN/SP Super-precision Double-row cylindrical roller bearing – CWL , The product will supply to all over the world, such as: Egypt, Cologne, Greenland, Our continual availability of high grade products in combination with our excellent pre-sale and after-sales service ensures strong competitiveness in an increasingly globalized market. welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!
  • Speaking of this cooperation with the Chinese manufacturer, I just want to say"well dodne", we are very satisfied.
    5 Stars By Athena from San Diego - 2018.12.14 15:26
    The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
    5 Stars By Lilith from Ukraine - 2017.06.16 18:23
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