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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 20/750 ECMA 750 mm 1090 mm 195 mm 6270 kN 12700 kN 644 kg
NU 10/750 ECMA/HB1 750 mm 1090 mm 150 mm 4730 kN 8800 kN 487 kg
NJ 18/750 MA 750 mm 920 mm 78 mm 1470 kN 3450 kN 115 kg
315799 720 mm 880 mm 62 mm 704 kN 1560 kN 75 kg
NU 29/710 ECMA 710 mm 950 mm 140 mm 3740 kN 8300 kN 296 kg
NU 20/710 ECMA/HB1 710 mm 1030 mm 185 mm 5940 kN 12000 kN 540 kg
NU 18/710 ECMA/HB1 710 mm 870 mm 74 mm 1450 kN 3350 kN 93.5 kg
NU 10/710 ECMA 710 mm 1030 mm 140 mm 4680 kN 8500 kN 415 kg
NJ 29/710 ECMA 710 mm 950 mm 140 mm 3740 kN 8300 kN 300 kg
NJ 28/710 ECMA 710 mm 870 mm 95 mm 1940 kN 5000 kN 130 kg
N 28/710 ECMB 710 mm 870 mm 95 mm 1940 kN 5000 kN 127 kg
NU 20/670 ECMA/HB1 670 mm 980 mm 180 mm 5390 kN 11000 kN 480 kg
NU 19/670 ECMA 670 mm 900 mm 103 mm 2330 kN 4750 kN 195 kg
NU 10/670 ECMA 670 mm 980 mm 136 mm 3740 kN 6800 kN 350 kg
316012 670 mm 820 mm 56 mm 616 kN 1370 kN 57 kg
315837 640 mm 790 mm 56 mm 605 kN 1290 kN 56 kg
NU 29/630 ECMA/HB1 630 mm 850 mm 128 mm 3300 kN 7200 kN 224 kg
NU 20/630 ECMA 630 mm 920 mm 170 mm 4730 kN 9500 kN 400 kg
NU 19/630 ECMA/HB1 630 mm 850 mm 100 mm 2240 kN 4400 kN 168 kg
NU 12/630 ECMA/HB1 630 mm 1150 mm 230 mm 8580 kN 13700 kN 1109 kg
NJ 29/630 ECMA/HB1 630 mm 850 mm 128 mm 3300 kN 7200 kN 230 kg
NJ 18/630 ECMA/HB1 630 mm 780 mm 69 mm 1100 kN 2500 kN 75 kg
N 28/630 ECMB/HB1 630 mm 780 mm 88 mm 1570 kN 4050 kN 100 kg
315933 630 mm 780 mm 56 mm 605 kN 1290 kN 55 kg
NUP 19/600 ECMA/HA1 600 mm 800 mm 90 mm 1900 kN 3800 kN 140 kg
NU 30/600 ECMA/HA1 600 mm 870 mm 200 mm 5390 kN 11000 kN 420 kg
NU 29/600 ECMA/HB1 600 mm 800 mm 118 mm 2920 kN 6550 kN 165 kg
NU 28/600 ECMA 600 mm 730 mm 78 mm 1320 kN 3350 kN 71 kg
NU 20/600 ECMA 600 mm 870 mm 155 mm 4180 kN 8000 kN 325 kg
NU 2/600 ECMA/HB1 600 mm 1090 mm 155 mm 5610 kN 9800 kN 710 kg
NU 19/600 ECMA/HA1 600 mm 800 mm 90 mm 1900 kN 3800 kN 130 kg
NU 29/560 ECMA 560 mm 750 mm 112 mm 2460 kN 5700 kN 145 kg
NU 22/560 ECMA 560 mm 1030 mm 272 mm 9900 kN 16600 kN 1086 kg
NU 20/560 ECMA 560 mm 820 mm 150 mm 3800 kN 7650 kN 290 kg
NU 19/560 ECMA 560 mm 750 mm 85 mm 1650 kN 3400 kN 111 kg
NU 12/560 MA 560 mm 1030 mm 206 mm 7210 kN 11200 kN 805 kg
NU 10/560 MA 560 mm 820 mm 115 mm 2330 kN 4250 kN 210 kg
NJ 18/560 ECMA 560 mm 680 mm 56 mm 897 kN 2040 kN 45 kg
NJ 10/560 MA 560 mm 820 mm 115 mm 2330 kN 4250 kN 210 kg
NUP 29/530 ECMA 530 mm 710 mm 106 mm 2380 kN 5000 kN 130 kg