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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
N 1018 KTN9/SP 90 mm 140 mm 24 mm 79.2 kN 108 kN 1.2 kg
N 1018 KTN9/HC5SP 90 mm 140 mm 24 mm 79.2 kN 108 kN 1.08 kg
N 1017 KTN9/SP 85 mm 130 mm 22 mm 73.7 kN 102 kN 0.9 kg
N 1017 KTN9/HC5SP 85 mm 130 mm 22 mm 73.7 kN 102 kN 0.8 kg
N 1016 KTNHA/SP 80 mm 125 mm 22 mm 67.1 kN 90 kN 0.88 kg
N 1016 KTNHA/HC5SP 80 mm 125 mm 22 mm 67.1 kN 90 kN 0.79 kg
N 1016 KPHA/SP 80 mm 125 mm 22 mm 66 kN 86.5 kN 0.88 kg
N 1016 KPHA/HC5SP 80 mm 125 mm 22 mm 66 kN 86.5 kN 0.73 kg
N 1015 KTN/SP 75 mm 115 mm 20 mm 56.1 kN 75 kN 0.65 kg
N 1015 KTN/HC5SP 75 mm 115 mm 20 mm 56.1 kN 75 kN 0.57 kg
N 1015 KPHA/SP 75 mm 115 mm 20 mm 52.8 kN 69.5 kN 0.64 kg
N 1015 KPHA/HC5SP 75 mm 115 mm 20 mm 52.8 kN 69.5 kN 0.53 kg
N 1014 KTNHA/SP 70 mm 110 mm 20 mm 55 kN 72 kN 0.62 kg
N 1014 KTNHA/HC5SP 70 mm 110 mm 20 mm 55 kN 72 kN 0.55 kg
N 1014 KTN/SP 70 mm 110 mm 20 mm 57.2 kN 75 kN 0.62 kg
N 1014 KTN/HC5SP 70 mm 110 mm 20 mm 57.2 kN 75 kN 0.55 kg
N 1014 KPHA/SP 70 mm 110 mm 20 mm 53.9 kN 69.5 kN 0.61 kg
N 1014 KPHA/HC5SP 70 mm 110 mm 20 mm 53.9 kN 69.5 kN 0.5 kg
N 1013 KTNHA/SP 65 mm 100 mm 18 mm 44 kN 56 kN 0.44 kg
N 1013 KTNHA/HC5SP 65 mm 100 mm 18 mm 44 kN 56 kN 0.39 kg
N 1013 KTN/SP 65 mm 100 mm 18 mm 44.6 kN 58.5 kN 0.44 kg
N 1013 KTN/HC5SP 65 mm 100 mm 18 mm 44.6 kN 58.5 kN 0.39 kg
N 1013 KPHA/SP 65 mm 100 mm 18 mm 42.9 kN 54 kN 0.43 kg
N 1013 KPHA/HC5SP 65 mm 100 mm 18 mm 42.9 kN 54 kN 0.35 kg
N 1012 KTNHA/SP 60 mm 95 mm 18 mm 41.3 kN 51 kN 0.41 kg
N 1012 KTNHA/HC5SP 60 mm 95 mm 18 mm 41.3 kN 51 kN 0.37 kg
N 1012 KTN/SP 60 mm 95 mm 18 mm 42.9 kN 53 kN 0.41 kg
N 1012 KPHA/SP 60 mm 95 mm 18 mm 40.2 kN 49 kN 0.4 kg
N 1012 KPHA/HC5SP 60 mm 95 mm 18 mm 40.2 kN 49 kN 0.33 kg
N 1011 KTNHA/SP 55 mm 90 mm 18 mm 39.1 kN 46.5 kN 0.39 kg
N 1011 KTNHA/HC5SP 55 mm 90 mm 18 mm 39.1 kN 46.5 kN 0.35 kg
N 1011 KTN/SP 55 mm 90 mm 18 mm 40.2 kN 48 kN 0.39 kg
N 1011 KTN/HC5SP 55 mm 90 mm 18 mm 40.2 kN 48 kN 0.35 kg
N 1011 KPHA/SP 55 mm 90 mm 18 mm 37.4 kN 44 kN 0.38 kg
N 1011 KPHA/HC5SP 55 mm 90 mm 18 mm 37.4 kN 44 kN 0.32 kg
N 1010 KTNHA/SP 50 mm 80 mm 16 mm 29.7 kN 34.5 kN 0.26 kg
N 1010 KTNHA/HC5SP 50 mm 80 mm 16 mm 29.7 kN 34.5 kN 0.23 kg
N 1010 KTN/SP 50 mm 80 mm 16 mm 30.8 kN 36.5 kN 0.26 kg
N 1010 KTN/HC5SP 50 mm 80 mm 16 mm 30.8 kN 36.5 kN 0.23 kg
N 1010 KPHA/SP 50 mm 80 mm 16 mm 28.6 kN 33.5 kN 0.26 kg