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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 324 ECM 120 mm 260 mm 55 mm 610 kN 620 kN 14.7 kg
NU 324 ECJ 120 mm 260 mm 55 mm 610 kN 620 kN 13.1 kg
NU 2324 ECML 120 mm 260 mm 86 mm 915 kN 1040 kN 22.4 kg
NU 2324 ECM 120 mm 260 mm 86 mm 915 kN 1040 kN 23.3 kg
NU 224 ECP 120 mm 215 mm 40 mm 390 kN 430 kN 5.75 kg
NU 224 ECML 120 mm 215 mm 40 mm 390 kN 430 kN 6.29 kg
NU 224 ECM 120 mm 215 mm 40 mm 390 kN 430 kN 6.56 kg
NU 224 ECJ 120 mm 215 mm 40 mm 390 kN 430 kN 5.65 kg
NU 2224 ECP 120 mm 215 mm 58 mm 520 kN 630 kN 8.19 kg
NU 2224 ECNML 120 mm 215 mm 58 mm 520 kN 630 kN 9.11 kg
NU 2224 ECML 120 mm 215 mm 58 mm 520 kN 630 kN 9.16 kg
NU 2224 ECM 120 mm 215 mm 58 mm 520 kN 630 kN 9.29 kg
NU 2224 ECJ 120 mm 215 mm 58 mm 520 kN 630 kN 8.51 kg
NU 1024 ML 120 mm 180 mm 28 mm 153 kN 183 kN 2.53 kg
NJ 324 ECML 120 mm 260 mm 55 mm 610 kN 620 kN 15 kg
NJ 324 ECM 120 mm 260 mm 55 mm 610 kN 620 kN 14.9 kg
NJ 324 ECJ 120 mm 260 mm 55 mm 610 kN 620 kN 13.5 kg
NJ 2324 ECML 120 mm 260 mm 86 mm 915 kN 1040 kN 22.8 kg
NJ 2324 ECM 120 mm 260 mm 86 mm 915 kN 1040 kN 23.3 kg
NJ 224 ECP 120 mm 215 mm 40 mm 390 kN 430 kN 5.86 kg
NJ 224 ECML 120 mm 215 mm 40 mm 390 kN 430 kN 6.39 kg
NJ 224 ECM 120 mm 215 mm 40 mm 390 kN 430 kN 6.52 kg
NJ 224 ECJ 120 mm 215 mm 40 mm 390 kN 430 kN 5.77 kg
NJ 2224 ECP 120 mm 215 mm 58 mm 520 kN 630 kN 8.33 kg
NJ 2224 ECML 120 mm 215 mm 58 mm 520 kN 630 kN 9.3 kg
NJ 2224 ECM 120 mm 215 mm 58 mm 520 kN 630 kN 9.77 kg
NJ 2224 ECJ 120 mm 215 mm 58 mm 520 kN 630 kN 8.65 kg
N 324 ECP 120 mm 260 mm 55 mm 610 kN 620 kN 13.2 kg
N 324 ECM 120 mm 260 mm 55 mm 610 kN 620 kN 14.6 kg
N 224 ECP 120 mm 215 mm 40 mm 390 kN 430 kN 5.73 kg
N 224 ECM 120 mm 215 mm 40 mm 390 kN 430 kN 6.51 kg
NUP 322 ECP 110 mm 240 mm 50 mm 530 kN 540 kN 10.7 kg
NUP 322 ECML 110 mm 240 mm 50 mm 530 kN 540 kN 12.2 kg
NUP 322 ECJ 110 mm 240 mm 50 mm 530 kN 540 kN 10.7 kg
NUP 2322 ECP 110 mm 240 mm 80 mm 780 kN 900 kN 17.4 kg
NUP 2222 ECP 110 mm 200 mm 53 mm 440 kN 520 kN 6.98 kg
NUP 2222 ECML 110 mm 200 mm 53 mm 440 kN 520 kN 7.64 kg
NUP 222 ECP 110 mm 200 mm 38 mm 335 kN 365 kN 5 kg
NUP 222 ECML 110 mm 200 mm 38 mm 335 kN 365 kN 5.62 kg
NUB 222 ECJ 110 mm 200 mm 53 mm 335 kN 365 kN 5.22 kg