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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 1968 ECMA 340 mm 460 mm 56 mm 682 kN 1200 kN 27.5 kg
NU 1068 MA 340 mm 520 mm 82 mm 1080 kN 1760 kN 63.5 kg
NU 1068 ECML 340 mm 520 mm 82 mm 1450 kN 2450 kN 65 kg
NJ 2968 ECMA 340 mm 460 mm 72 mm 1020 kN 2040 kN 37 kg
NJ 1068 MA 340 mm 520 mm 82 mm 1080 kN 1760 kN 65.5 kg
NUP 1864 ECMP 320 mm 400 mm 38 mm 369 kN 710 kN 11.7 kg
NU 3164 ECMA 320 mm 540 mm 176 mm 3140 kN 5400 kN 173 kg
NU 3064 ECM 320 mm 480 mm 121 mm 1830 kN 3150 kN 75 kg
NU 264 MA 320 mm 580 mm 92 mm 1610 kN 2450 kN 115 kg
NU 264 ECM 320 mm 580 mm 92 mm 1830 kN 2750 kN 115 kg
NU 2364 ECMA 320 mm 670 mm 200 mm 4730 kN 7500 kN 369 kg
NU 2264 ECML 320 mm 580 mm 150 mm 3190 kN 5000 kN 176 kg
NU 1964 ECMA 320 mm 440 mm 56 mm 693 kN 1200 kN 26 kg
NU 1864 ECMP 320 mm 400 mm 38 mm 369 kN 710 kN 10.9 kg
NU 1064 MA 320 mm 480 mm 74 mm 880 kN 1430 kN 48.5 kg
NJ 2264 ECMA 320 mm 580 mm 150 mm 3190 kN 5000 kN 190 kg
NJ 1064 MA 320 mm 480 mm 74 mm 880 kN 1430 kN 48 kg
NU 360 ECM 300 mm 620 mm 109 mm 2330 kN 3350 kN 174 kg
NU 260 MA 300 mm 540 mm 85 mm 1420 kN 2120 kN 89.5 kg
NU 260 M 300 mm 540 mm 85 mm 1420 kN 2120 kN 89.5 kg
NU 2360 ECMA 300 mm 620 mm 185 mm 4020 kN 5850 kN 270 kg
NU 2260 MA 300 mm 540 mm 140 mm 2090 kN 3450 kN 145 kg
NU 2060 ECMA 300 mm 460 mm 95 mm 1510 kN 2600 kN 62 kg
NU 1060 MA 300 mm 460 mm 74 mm 1000 kN 1370 kN 46 kg
NJ 1060 MA 300 mm 460 mm 74 mm 858 kN 1370 kN 46 kg
NU 3156 ECMA 280 mm 460 mm 146 mm 2290 kN 3900 kN 101 kg
NU 256 MA 280 mm 500 mm 80 mm 1190 kN 1800 kN 71.5 kg
NU 256 M 280 mm 500 mm 80 mm 1190 kN 1800 kN 71.5 kg
NU 2356 MA 280 mm 580 mm 175 mm 2700 kN 4300 kN 230 kg
NU 2256 ECML 280 mm 500 mm 130 mm 2330 kN 3750 kN 115 kg
NU 2256 ECMA 280 mm 500 mm 130 mm 2200 kN 3450 kN 115 kg
NU 1056 ML 280 mm 420 mm 65 mm 765 kN 1060 kN 31 kg
NU 1056 M 280 mm 420 mm 65 mm 765 kN 1060 kN 31.6 kg
NJ 256 MA 280 mm 500 mm 80 mm 1140 kN 1800 kN 73 kg
NUP 252 MA 260 mm 480 mm 80 mm 1170 kN 1700 kN 74 kg
NU 3152 ECMA 260 mm 440 mm 144 mm 2090 kN 3450 kN 98 kg
NU 252 MA 260 mm 480 mm 80 mm 1170 kN 1700 kN 68.5 kg
NU 2352 ECMA 260 mm 540 mm 165 mm 3190 kN 4550 kN 193 kg
NU 2252 MA 260 mm 480 mm 130 mm 1790 kN 3000 kN 110 kg
NU 1052 ML 260 mm 400 mm 65 mm 720 kN 965 kN 29.3 kg