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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 218 ECM 90 mm 160 mm 30 mm 208 kN 220 kN 2.73 kg
NU 218 ECJ 90 mm 160 mm 30 mm 208 kN 220 kN 2.31 kg
NU 1018 ML 90 mm 140 mm 24 mm 93 kN 104 kN 1.37 kg
NJ 318 ECP 90 mm 190 mm 43 mm 365 kN 360 kN 5.47 kg
NJ 318 ECML 90 mm 190 mm 43 mm 365 kN 360 kN 6.02 kg
NJ 318 ECM 90 mm 190 mm 43 mm 365 kN 360 kN 6.13 kg
NJ 318 ECJ 90 mm 190 mm 43 mm 365 kN 360 kN 5.39 kg
NJ 2318 ECP 90 mm 190 mm 64 mm 500 kN 540 kN 8.16 kg
NJ 2318 ECML 90 mm 190 mm 64 mm 500 kN 540 kN 8.92 kg
NJ 2318 ECM 90 mm 190 mm 64 mm 500 kN 540 kN 9.47 kg
NJ 2318 ECJ 90 mm 190 mm 64 mm 500 kN 540 kN 8.27 kg
NJ 2218 ECP 90 mm 160 mm 40 mm 280 kN 315 kN 3.23 kg
NJ 2218 ECML 90 mm 160 mm 40 mm 280 kN 315 kN 3.51 kg
NJ 2218 ECM 90 mm 160 mm 40 mm 280 kN 315 kN 3.63 kg
NJ 2218 ECJ 90 mm 160 mm 40 mm 280 kN 315 kN 3.2 kg
NJ 218 ECP 90 mm 160 mm 30 mm 208 kN 220 kN 2.32 kg
NJ 218 ECML 90 mm 160 mm 30 mm 208 kN 220 kN 2.66 kg
NJ 218 ECM 90 mm 160 mm 30 mm 208 kN 220 kN 2.79 kg
NJ 218 ECJ 90 mm 160 mm 30 mm 208 kN 220 kN 2.35 kg
NJ 1018 ML 90 mm 140 mm 24 mm 93 kN 104 kN 1.39 kg
N 318 ECP 90 mm 190 mm 43 mm 365 kN 360 kN 5.31 kg
N 318 ECM 90 mm 190 mm 43 mm 365 kN 360 kN 6 kg
N 218 ECP 90 mm 160 mm 30 mm 208 kN 220 kN 2.32 kg
NUP 317 ECP 85 mm 180 mm 41 mm 340 kN 335 kN 4.87 kg
NUP 317 ECM 85 mm 180 mm 41 mm 340 kN 335 kN 5.6 kg
NUP 317 ECJ 85 mm 180 mm 41 mm 340 kN 335 kN 4.95 kg
NUP 2317 ECML 85 mm 180 mm 60 mm 455 kN 490 kN 7.85 kg
NUP 2217 ECP 85 mm 150 mm 36 mm 250 kN 280 kN 2.58 kg
NUP 2217 ECML 85 mm 150 mm 36 mm 250 kN 280 kN 2.88 kg
NUP 217 ECP 85 mm 150 mm 28 mm 190 kN 200 kN 1.9 kg
NUP 217 ECML 85 mm 150 mm 28 mm 190 kN 200 kN 2.15 kg
NUP 217 ECJ 85 mm 150 mm 28 mm 190 kN 200 kN 1.98 kg
NUP 1017 ML 85 mm 130 mm 22 mm 78 kN 86.5 kN 1.1 kg
NUB 217 ECJ 85 mm 150 mm 36 mm 190 kN 200 kN 2.12 kg
NU 317 ECP 85 mm 180 mm 41 mm 340 kN 335 kN 4.7 kg
NU 317 ECM 85 mm 180 mm 41 mm 340 kN 335 kN 5.38 kg
NU 317 ECJ 85 mm 180 mm 41 mm 340 kN 335 kN 4.75 kg
NU 2317 ECP 85 mm 180 mm 60 mm 455 kN 490 kN 6.84 kg
NU 2317 ECML 85 mm 180 mm 60 mm 455 kN 490 kN 7.49 kg
NU 2317 ECM 85 mm 180 mm 60 mm 455 kN 490 kN 7.67 kg