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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 326 ECM 130 mm 280 mm 58 mm 720 kN 750 kN 18 kg
NU 326 ECJ 130 mm 280 mm 58 mm 720 kN 750 kN 16.1 kg
NU 2326 ECML 130 mm 280 mm 93 mm 1060 kN 1250 kN 28.4 kg
NU 226 ECP 130 mm 230 mm 40 mm 415 kN 455 kN 6.44 kg
NU 226 ECML 130 mm 230 mm 40 mm 415 kN 455 kN 7.13 kg
NU 226 ECM 130 mm 230 mm 40 mm 415 kN 455 kN 7.42 kg
NU 226 ECJ 130 mm 230 mm 40 mm 415 kN 455 kN 6.28 kg
NU 2226 ECP 130 mm 230 mm 64 mm 610 kN 735 kN 10.1 kg
NU 2226 ECML 130 mm 230 mm 64 mm 610 kN 735 kN 11.3 kg
NU 1026 ML 130 mm 200 mm 33 mm 186 kN 224 kN 3.84 kg
NJ 326 ECML 130 mm 280 mm 58 mm 720 kN 750 kN 18.8 kg
NJ 326 ECM 130 mm 280 mm 58 mm 720 kN 750 kN 18.4 kg
NJ 326 ECJ 130 mm 280 mm 58 mm 720 kN 750 kN 16.4 kg
NJ 2326 ECPA 130 mm 280 mm 93 mm 1060 kN 1250 kN 26.4 kg
NJ 2326 ECML 130 mm 280 mm 93 mm 1060 kN 1250 kN 29.5 kg
NJ 226 ECP 130 mm 230 mm 40 mm 415 kN 455 kN 6.59 kg
NJ 226 ECML 130 mm 230 mm 40 mm 415 kN 455 kN 7.15 kg
NJ 226 ECM 130 mm 230 mm 40 mm 415 kN 455 kN 7.35 kg
NJ 226 ECJ 130 mm 230 mm 40 mm 415 kN 455 kN 6.58 kg
NJ 2226 ECP 130 mm 230 mm 64 mm 610 kN 735 kN 10.3 kg
NJ 2226 ECML 130 mm 230 mm 64 mm 610 kN 735 kN 11.8 kg
NJ 1026 ML 130 mm 200 mm 33 mm 186 kN 224 kN 3.82 kg
NJ 1026 M 130 mm 200 mm 33 mm 186 kN 224 kN 3.75 kg
N 326 ECP 130 mm 280 mm 58 mm 720 kN 750 kN 16.3 kg
N 326 ECM 130 mm 280 mm 58 mm 720 kN 750 kN 17.9 kg
N 226 ECP 130 mm 230 mm 40 mm 415 kN 455 kN 6.43 kg
NUP 324 ECML 120 mm 260 mm 55 mm 610 kN 620 kN 15.8 kg
NUP 324 ECJ 120 mm 260 mm 55 mm 610 kN 620 kN 14 kg
NUP 2324 ECML 120 mm 260 mm 86 mm 915 kN 1040 kN 23.6 kg
NUP 224 ECP 120 mm 215 mm 40 mm 390 kN 430 kN 5.99 kg
NUP 224 ECML 120 mm 215 mm 40 mm 390 kN 430 kN 6.7 kg
NUP 224 ECJ 120 mm 215 mm 40 mm 390 kN 430 kN 5.95 kg
NUP 2224 ECP 120 mm 215 mm 58 mm 520 kN 630 kN 8.64 kg
NUP 2224 ECML 120 mm 215 mm 58 mm 520 kN 630 kN 9.71 kg
NUP 2224 ECM 120 mm 215 mm 58 mm 520 kN 630 kN 9.75 kg
NUP 2224 ECJ 120 mm 215 mm 58 mm 520 kN 630 kN 8.87 kg
NU 424 120 mm 310 mm 72 mm 644 kN 735 kN 27.3 kg
NU 324 ECPH 120 mm 260 mm 55 mm 610 kN 620 kN 13 kg
NU 324 ECP 120 mm 260 mm 55 mm 610 kN 620 kN 13 kg
NU 324 ECML 120 mm 260 mm 55 mm 610 kN 620 kN 14.8 kg