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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
319430 B-2LS 150 mm 210 mm 80 mm 484 kN 915 kN
NNF 5028 B-2LS 140 mm 210 mm 95 mm 644 kN 1120 kN
NNCL 4928 CV 140 mm 190 mm 50 mm 308 kN 570 kN
NNCF 5028 CV 140 mm 210 mm 95 mm 809 kN 1370 kN
NNCF 4928 CV 140 mm 190 mm 50 mm 308 kN 570 kN
NNC 4928 CV 140 mm 190 mm 50 mm 308 kN 570 kN
319428 DA-2LS 140 mm 200 mm 80 mm 468 kN 865 kN
NNF 5026 B-2LS 130 mm 200 mm 95 mm 616 kN 1040 kN
NNCL 4926 CV 130 mm 180 mm 50 mm 297 kN 530 kN
NNCF 5026 CV 130 mm 200 mm 95 mm 765 kN 1250 kN
NNCF 4926 CV 130 mm 180 mm 50 mm 297 kN 530 kN
NNC 4926 CV 130 mm 180 mm 50 mm 297 kN 530 kN
319426 B-2LS 130 mm 190 mm 80 mm 446 kN 815 kN
NNF 5024 B-2LS 120 mm 180 mm 80 mm 429 kN 750 kN
NNCL 4924 CV 120 mm 165 mm 45 mm 242 kN 480 kN
NNCF 5024 CV 120 mm 180 mm 80 mm 539 kN 880 kN
NNCF 4924 CV 120 mm 165 mm 45 mm 242 kN 480 kN
NNC 4924 CV 120 mm 165 mm 45 mm 242 kN 480 kN
NNF 5022 B-2LS 110 mm 170 mm 80 mm 413 kN 695 kN
NNCL 4922 CV 110 mm 150 mm 40 mm 220 kN 430 kN
NNCF 5022 CV 110 mm 170 mm 80 mm 512 kN 800 kN
NNCF 4922 CV 110 mm 150 mm 40 mm 220 kN 430 kN
NNC 4922 CV 110 mm 150 mm 40 mm 220 kN 430 kN
NNF 5020 B-2LS 100 mm 150 mm 67 mm 336 kN 570 kN
NNCL 4920 CV 100 mm 140 mm 40 mm 209 kN 400 kN
NNCF 5020 CV 100 mm 150 mm 67 mm 391 kN 620 kN
NNCF 4920 CV 100 mm 140 mm 40 mm 209 kN 400 kN
NNC 4920 CV 100 mm 140 mm 40 mm 209 kN 400 kN
NNF 5019 B-2LS 95 mm 145 mm 67 mm 330 kN 570 kN
NNF 5018 B-2LS 90 mm 140 mm 67 mm 319 kN 550 kN
NNCL 4918 CV 90 mm 125 mm 35 mm 161 kN 300 kN
NNCF 5018 CV 90 mm 140 mm 67 mm 369 kN 560 kN
NNCF 4918 CV 90 mm 125 mm 35 mm 161 kN 300 kN
NNC 4918 CV 90 mm 125 mm 35 mm 161 kN 300 kN
NNF 5017 B-2LS 85 mm 130 mm 60 mm 270 kN 430 kN
NNCF 5017 CV 85 mm 130 mm 60 mm 314 kN 475 kN
NNF 5016 B-2LS 80 mm 125 mm 60 mm 251 kN 415 kN
NNCL 4916 CV 80 mm 110 mm 30 mm 121 kN 216 kN
NNCF 5016 CV 80 mm 125 mm 60 mm 308 kN 455 kN
NNCF 4916 CV 80 mm 110 mm 30 mm 121 kN 216 kN