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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
NNCF 4938 CV 190 mm 260 mm 69 mm 605 kN 1290 kN
NNCF 4838 CV 190 mm 240 mm 50 mm 358 kN 750 kN
NNC 4938 CV 190 mm 260 mm 69 mm 605 kN 1290 kN
NNC 4838 CV 190 mm 240 mm 50 mm 358 kN 750 kN
319438 DA-2LS 190 mm 260 mm 80 mm 550 kN 1180 kN
NNF 5036 B-2LS 180 mm 280 mm 136 mm 1170 kN 2120 kN
NNCL 4936 CV 180 mm 250 mm 69 mm 594 kN 1220 kN
NNCL 4836 CV 180 mm 225 mm 45 mm 297 kN 695 kN
NNCF 5036 CV 180 mm 280 mm 136 mm 1420 kN 2500 kN
NNCF 4936 CV 180 mm 250 mm 69 mm 594 kN 1220 kN
NNCF 4836 CV 180 mm 225 mm 45 mm 297 kN 695 kN
NNC 4936 CV 180 mm 250 mm 69 mm 594 kN 1220 kN
NNC 4836 CV 180 mm 225 mm 45 mm 297 kN 695 kN
319436 DA-2LS 180 mm 240 mm 80 mm 528 kN 1100 kN
NNF 5034 B-2LS 170 mm 260 mm 122 mm 1010 kN 1800 kN
NNCL 4934 CV 170 mm 230 mm 60 mm 457 kN 950 kN
NNCL 4834 CV 170 mm 215 mm 45 mm 286 kN 655 kN
NNCF 5034 CV 170 mm 260 mm 122 mm 1230 kN 2120 kN
NNCF 4934 CV 170 mm 230 mm 60 mm 457 kN 950 kN
NNCF 4834 CV 170 mm 215 mm 45 mm 286 kN 655 kN
NNC 4934 CV 170 mm 230 mm 60 mm 457 kN 950 kN
NNC 4834 CV 170 mm 215 mm 45 mm 286 kN 655 kN
319434 B-2LS 170 mm 230 mm 80 mm 512 kN 1060 kN
NNF 5032 B-2LS 160 mm 240 mm 109 mm 781 kN 1400 kN
NNCL 4932 CV 160 mm 220 mm 60 mm 446 kN 915 kN
NNCL 4832 CV 160 mm 200 mm 40 mm 260 kN 610 kN
NNCF 5032 CV 160 mm 240 mm 109 mm 952 kN 1600 kN
NNCF 4932 CV 160 mm 220 mm 60 mm 446 kN 915 kN
NNCF 4832 CV 160 mm 200 mm 40 mm 260 kN 610 kN
NNC 4932 CV 160 mm 220 mm 60 mm 446 kN 915 kN
NNC 4832 CV 160 mm 200 mm 40 mm 260 kN 610 kN
319432 DA-2LS 160 mm 220 mm 80 mm 501 kN 1000 kN
NNF 5030 B-2LS 150 mm 225 mm 100 mm 748 kN 1290 kN
NNCL 4930 CV 150 mm 210 mm 60 mm 429 kN 830 kN
NNCL 4830 CV 150 mm 190 mm 40 mm 255 kN 585 kN
NNCF 5030 CV 150 mm 225 mm 100 mm 842 kN 1430 kN
NNCF 4930 CV 150 mm 210 mm 60 mm 429 kN 830 kN
NNCF 4830 CV 150 mm 190 mm 40 mm 255 kN 585 kN
NNC 4930 CV 150 mm 210 mm 60 mm 429 kN 830 kN
NNC 4830 CV 150 mm 190 mm 40 mm 255 kN 585 kN