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Double Row Complete 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
NNCL 4980 CV 400 mm 540 mm 140 mm 2420 kN 6000 kN
NNCL 4880 CV 400 mm 500 mm 100 mm 1420 kN 3750 kN
NNCF 5080 CV 400 mm 600 mm 272 mm 5500 kN 11000 kN
NNCF 4980 CV 400 mm 540 mm 140 mm 2420 kN 6000 kN
NNCF 4880 CV 400 mm 500 mm 100 mm 1420 kN 3750 kN
NNCL 4976 CV 380 mm 520 mm 140 mm 2380 kN 5700 kN
NNCL 4876 CV 380 mm 480 mm 100 mm 1400 kN 3650 kN
NNCF 5076 CV 380 mm 560 mm 243 mm 4680 kN 9150 kN
NNCF 4976 CV 380 mm 520 mm 140 mm 2380 kN 5700 kN
NNCF 4876 CV 380 mm 480 mm 100 mm 1400 kN 3650 kN
NNCL 4972 CV 360 mm 480 mm 118 mm 1830 kN 4500 kN
NNCL 4872 CV 360 mm 440 mm 80 mm 935 kN 2550 kN
NNCF 5072 CV 360 mm 540 mm 243 mm 4180 kN 8650 kN
NNCF 4972 CV 360 mm 480 mm 118 mm 1830 kN 4500 kN
NNCF 4872 CV 360 mm 440 mm 80 mm 935 kN 2550 kN
NNCL 4968 CV 340 mm 460 mm 118 mm 1790 kN 4250 kN
NNCL 4868 CV 340 mm 420 mm 80 mm 913 kN 2400 kN
NNCF 5068 CV 340 mm 520 mm 243 mm 4400 kN 8300 kN
NNCF 4968 CV 340 mm 460 mm 118 mm 1790 kN 4250 kN
NNCF 4868 CV 340 mm 420 mm 80 mm 913 kN 2400 kN
NNC 4868 CV 340 mm 420 mm 80 mm 913 kN 2400 kN
NNCL 4964 CV 320 mm 440 mm 118 mm 1760 kN 4050 kN
NNCL 4864 CV 320 mm 400 mm 80 mm 897 kN 2280 kN
NNCF 5064 CV 320 mm 480 mm 218 mm 3690 kN 6950 kN
NNCF 4964 CV 320 mm 440 mm 118 mm 1760 kN 4050 kN
NNCF 4864 CV 320 mm 400 mm 80 mm 897 kN 2280 kN
NNC 4864 CV 320 mm 400 mm 80 mm 897 kN 2280 kN
NNCL 4960 CV 300 mm 420 mm 118 mm 1680 kN 3750 kN
NNCL 4860 CV 300 mm 380 mm 80 mm 858 kN 2120 kN
NNCF 5060 CV 300 mm 460 mm 218 mm 3520 kN 6550 kN
NNCF 4960 CV 300 mm 420 mm 118 mm 1680 kN 3750 kN
NNCF 4860 CV 300 mm 380 mm 80 mm 858 kN 2120 kN
NNC 4960 CV 300 mm 420 mm 118 mm 1680 kN 3750 kN
NNC 4860 CV 300 mm 380 mm 80 mm 858 kN 2120 kN
NNF 5056 B-2LS 280 mm 420 mm 190 mm 2550 kN 5000 kN
NNCL 4956 CV 280 mm 380 mm 100 mm 1210 kN 2700 kN
NNCL 4856 CV 280 mm 350 mm 69 mm 737 kN 1860 kN
NNCF 5056 CV 280 mm 420 mm 190 mm 2920 kN 5300 kN
NNCF 4956 CV 280 mm 380 mm 100 mm 1210 kN 2700 kN
NNCF 4856 CV 280 mm 350 mm 69 mm 737 kN 1860 kN