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Super Precision Cylindrical Roller Bearings

ZHIO® cylindrical roller bearings have many designs, dimension series and sizes. The majority is single row bearings with a cage. Single and double row full complement bearings (without cage) complete the ZHIO® standard assortment for general engineering. Bearings with a cage can accommodate heavy radial loads and operate at high speeds. Full complement cylindrical roller bearings are suitable for very heavy radial loads at moderate speeds.

The rollers of ZHIO® cylindrical roller bearings are key components. Their geometry, the so-called logarithmic profile, provides an optimum stress distribution in the contact zones in the bearing. Their surface finish maximizes lubricant film formation and optimizes rolling motion of the rollers. The benefits derived from this compared with traditional designs include enhanced operational reliability and a greater insensitivity to misalignment.

The range of ZHIO® cylindrical roller bearings comprises the basic types.
ZHIO® single row cylindrical roller bearings, caged, mainly of the NU, NJ, NUP and N designs.
ZHIO® double row cylindrical roller bearings, caged, mainly of the NNUand NN designs.
ZHIO® single row full complement cylindrical roller bearings, mainly of the NCF and NJG designs.
ZHIO® double row full complement cylindrical roller bearings, mainly of the NNF design.

ZHIO® cylindrical roll bearings have the following design features:
1. Optimized design in ribs and rollers to enhance the axial load capacity
2. Optimized design in the geometric surface between rollers and raceway to balance the radial load distribution
3. Limit the width of raceway undercut, increase the contact area between raceway and rollers and enhance the radial load capacity
4. High standard material, strictly control the element content, e.g. Ti<30ppm
5. Low noise design, reaches to V1 grade noise level, contributes to the quieter running of automobile engine and gearbox.

Dimension(mm) Radial Load
Model inside Outside Height Dynamic Static Maximum Speed Weight
NN 3014 KTN/SPVR521 70 mm 110 mm 30 mm 96.8 kN 150 kN 1 kg
NN 3014 KTN/SPVS019 70 mm 110 mm 30 mm 96.8 kN 150 kN 1 kg
NN 3014 KTN/SP 70 mm 110 mm 30 mm 96.8 kN 150 kN 1 kg
NN 3014 KTN/HC5SP 70 mm 110 mm 30 mm 96.8 kN 0.84 kg
NN 3013 TN/SPW33 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 TN/SPC2W33 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 TN/SP 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/W33VQ497 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/VQ497 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/UPW33 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/UPVR522 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/UPVR521 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/UP 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/SPW33VR521 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/SPW33 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/SPVR521 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3013 KTN/SP 65 mm 100 mm 26 mm 76.5 kN 116 kN 0.7 kg
NN 3012 TN/SPW33 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 TN/SP 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/VQ497 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/VQ055 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/UPVR522 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/UP 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/SPW33VR522 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/SPW33 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/SPVR521 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/SPVM127 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/SP 60 mm 95 mm 26 mm 73.7 kN 106 kN 0.65 kg
NN 3012 KTN/HC5SP 60 mm 95 mm 26 mm 73.7 kN 0.54 kg
NN 3011 TN/SPW33 55 mm 90 mm 26 mm 69.3 kN 96.5 kN 0.6 kg
NN 3011 TN/SP 55 mm 90 mm 26 mm 69.3 kN 96.5 kN 0.6 kg
NN 3011 KTN/UPVR522 55 mm 90 mm 26 mm 69.3 kN 96.5 kN 0.6 kg
NN 3011 KTN/UP 55 mm 90 mm 26 mm 69.3 kN 96.5 kN 0.6 kg
NN 3011 KTN/SPW33 55 mm 90 mm 26 mm 69.3 kN 96.5 kN 0.6 kg
NN 3011 KTN/SPVR522 55 mm 90 mm 26 mm 69.3 kN 96.5 kN 0.6 kg
NN 3011 KTN/SPVR521 55 mm 90 mm 26 mm 69.3 kN 96.5 kN 0.6 kg
NN 3011 KTN/SP 55 mm 90 mm 26 mm 69.3 kN 96.5 kN 0.6 kg
NN 3010 TN/SPW33 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 TN/SP 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/W33VQ497 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg