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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
NJ 234 ECML 170 mm 310 mm 52 mm 695 kN 815 kN 17.6 kg
NJ 234 ECM 170 mm 310 mm 52 mm 695 kN 815 kN 18.7 kg
NJ 2334 ECML 170 mm 360 mm 120 mm 1450 kN 2040 kN 60.7 kg
NJ 2234 ECML 170 mm 310 mm 86 mm 1060 kN 1340 kN 29.1 kg
NJ 1034 ML 170 mm 260 mm 42 mm 320 kN 400 kN 8.18 kg
N 334 ECM 170 mm 360 mm 72 mm 952 kN 1180 kN 37.1 kg
NUP 232 ECML 160 mm 290 mm 48 mm 585 kN 680 kN 15.1 kg
NUP 232 ECM 160 mm 290 mm 48 mm 585 kN 680 kN 15.5 kg
NU 332 ECML 160 mm 340 mm 68 mm 1000 kN 1080 kN 30.9 kg
NU 332 ECM 160 mm 340 mm 68 mm 1000 kN 1080 kN 31.3 kg
NU 2332 ECML 160 mm 340 mm 114 mm 1250 kN 1730 kN 49.9 kg
NU 232 ECML 160 mm 290 mm 48 mm 585 kN 680 kN 14.2 kg
NU 232 ECM 160 mm 290 mm 48 mm 585 kN 680 kN 14.4 kg
NU 2232 ECML 160 mm 290 mm 80 mm 930 kN 1200 kN 23.5 kg
NU 2032 ECMA 160 mm 240 mm 48 mm 418 kN 670 kN 8.09 kg
NU 1032 ML 160 mm 240 mm 38 mm 265 kN 325 kN 5.98 kg
NJ 332 ECML 160 mm 340 mm 68 mm 1000 kN 1080 kN 30.9 kg
NJ 332 ECM 160 mm 340 mm 68 mm 1000 kN 1080 kN 33.4 kg
NJ 2332 ECML 160 mm 340 mm 114 mm 1250 kN 1730 kN 50.7 kg
NJ 232 ECML 160 mm 290 mm 48 mm 585 kN 680 kN 14.4 kg
NJ 232 ECM 160 mm 290 mm 48 mm 585 kN 680 kN 14.5 kg
NJ 2232 ECML 160 mm 290 mm 80 mm 930 kN 1200 kN 24.1 kg
NJ 1032 ML 160 mm 240 mm 38 mm 265 kN 325 kN 6.25 kg
N 232 ECM 160 mm 290 mm 48 mm 585 kN 680 kN 15 kg
NUP 230 ECML 150 mm 270 mm 45 mm 510 kN 600 kN 12.1 kg
NUP 230 ECM 150 mm 270 mm 45 mm 510 kN 600 kN 12 kg
NUP 230 ECJ 150 mm 270 mm 45 mm 510 kN 600 kN 10.7 kg
NU 330 ECML 150 mm 320 mm 65 mm 900 kN 965 kN 26.1 kg
NU 330 ECM 150 mm 320 mm 65 mm 900 kN 965 kN 26.3 kg
NU 2330 ECML 150 mm 320 mm 108 mm 1370 kN 1630 kN 42.4 kg
NU 230 ECML 150 mm 270 mm 45 mm 510 kN 600 kN 11.4 kg
NU 230 ECM 150 mm 270 mm 45 mm 510 kN 600 kN 11.6 kg
NU 230 ECJ 150 mm 270 mm 45 mm 510 kN 600 kN 10.3 kg
NU 2230 ECM 150 mm 270 mm 73 mm 735 kN 930 kN 18.5 kg
NU 1030 ML 150 mm 225 mm 35 mm 228 kN 290 kN 4.91 kg
NU 1030 M 150 mm 225 mm 35 mm 220 kN 275 kN 4.76 kg
NJ 330 ECML 150 mm 320 mm 65 mm 900 kN 965 kN 26.6 kg
NJ 330 ECM 150 mm 320 mm 65 mm 900 kN 965 kN 26.7 kg
NJ 2330 ECML 150 mm 320 mm 108 mm 1370 kN 1630 kN 43.1 kg
NJ 230 ECML 150 mm 270 mm 45 mm 510 kN 600 kN 11.9 kg