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Single Row 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
NU 308 ECML 40 mm 90 mm 23 mm 93 kN 78 kN 0.73 kg
NU 308 ECM 40 mm 90 mm 23 mm 93 kN 78 kN 0.77 kg
NU 308 ECJ 40 mm 90 mm 23 mm 93 kN 78 kN 0.67 kg
NU 2308 ECPH 40 mm 90 mm 33 mm 129 kN 120 kN 0.93 kg
NU 2308 ECP 40 mm 90 mm 33 mm 129 kN 120 kN 0.93 kg
NU 2308 ECML 40 mm 90 mm 33 mm 129 kN 120 kN 1.07 kg
NU 2308 ECJ 40 mm 90 mm 33 mm 129 kN 120 kN 0.96 kg
NU 2208 ECPH 40 mm 80 mm 23 mm 81.5 kN 75 kN 0.48 kg
NU 2208 ECP 40 mm 80 mm 23 mm 81.5 kN 75 kN 0.49 kg
NU 2208 ECML 40 mm 80 mm 23 mm 81.5 kN 75 kN 0.55 kg
NU 2208 ECJ 40 mm 80 mm 23 mm 81.5 kN 75 kN 0.5 kg
NU 208 ECPH 40 mm 80 mm 18 mm 62 kN 53 kN 0.37 kg
NU 208 ECP 40 mm 80 mm 18 mm 62 kN 53 kN 0.37 kg
NU 208 ECML 40 mm 80 mm 18 mm 62 kN 53 kN 0.43 kg
NU 208 ECM 40 mm 80 mm 18 mm 62 kN 53 kN 0.43 kg
NU 208 ECJ 40 mm 80 mm 18 mm 62 kN 53 kN 0.38 kg
NU 1008 ML 40 mm 68 mm 15 mm 28.5 kN 26 kN 0.23 kg
NJ 308 ECPH 40 mm 90 mm 23 mm 93 kN 78 kN 0.67 kg
NJ 308 ECP 40 mm 90 mm 23 mm 93 kN 78 kN 0.67 kg
NJ 308 ECML 40 mm 90 mm 23 mm 93 kN 78 kN 0.85 kg
NJ 308 ECM 40 mm 90 mm 23 mm 93 kN 78 kN 0.79 kg
NJ 308 ECJ 40 mm 90 mm 23 mm 93 kN 78 kN 0.68 kg
NJ 2308 ECPH 40 mm 90 mm 33 mm 129 kN 120 kN 0.95 kg
NJ 2308 ECP 40 mm 90 mm 33 mm 129 kN 120 kN 0.95 kg
NJ 2308 ECML 40 mm 90 mm 33 mm 129 kN 120 kN 1.1 kg
NJ 2308 ECJ 40 mm 90 mm 33 mm 129 kN 120 kN 1.01 kg
NJ 2208 ECPH 40 mm 80 mm 23 mm 81.5 kN 75 kN 0.49 kg
NJ 2208 ECP 40 mm 80 mm 23 mm 81.5 kN 75 kN 0.5 kg
NJ 2208 ECML 40 mm 80 mm 23 mm 81.5 kN 75 kN 0.57 kg
NJ 2208 ECJ 40 mm 80 mm 23 mm 81.5 kN 75 kN 0.52 kg
NJ 208 ECPH 40 mm 80 mm 18 mm 62 kN 53 kN 0.38 kg
NJ 208 ECP 40 mm 80 mm 18 mm 62 kN 53 kN 0.38 kg
NJ 208 ECML 40 mm 80 mm 18 mm 62 kN 53 kN 0.43 kg
NJ 208 ECM 40 mm 80 mm 18 mm 62 kN 53 kN 0.44 kg
NJ 208 ECJ 40 mm 80 mm 18 mm 62 kN 53 kN 0.39 kg
N 308 ECP 40 mm 90 mm 23 mm 93 kN 78 kN 0.65 kg
N 308 ECM 40 mm 90 mm 23 mm 93 kN 78 kN 0.77 kg
N 208 ECPH 40 mm 80 mm 18 mm 62 kN 53 kN 0.36 kg
N 208 ECP 40 mm 80 mm 18 mm 62 kN 53 kN 0.37 kg
NUP 307 ECP 35 mm 80 mm 21 mm 75 kN 63 kN 0.49 kg