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Super Precision 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
NN 3020 KTN9/SPW33VR522 100 mm 150 mm 37 mm 151 kN 250 kN 2.08 kg
NN 3020 KTN9/SPW33 100 mm 150 mm 37 mm 151 kN 250 kN 2.08 kg
NN 3020 KTN9/SPVR592 100 mm 150 mm 37 mm 151 kN 250 kN 2.1 kg
NN 3020 KTN9/SPVR5220 100 mm 150 mm 37 mm 151 kN 250 kN 2.1 kg
NN 3020 KTN9/SPVR522 100 mm 150 mm 37 mm 151 kN 250 kN 2.1 kg
NN 3020 KTN9/SPVR521 100 mm 150 mm 37 mm 151 kN 250 kN 2.1 kg
NN 3020 KTN9/SP 100 mm 150 mm 37 mm 151 kN 250 kN 2.1 kg
NN 3019 TN9/SPW33 95 mm 145 mm 37 mm 142 kN 232 kN 2.03 kg
NN 3019 TN9/SP 95 mm 145 mm 37 mm 142 kN 232 kN 2.05 kg
NN 3019 KTN9/UPVR522 95 mm 145 mm 37 mm 142 kN 232 kN 2.05 kg
NN 3019 KTN9/SPW33 95 mm 145 mm 37 mm 142 kN 232 kN 2.03 kg
NN 3019 KTN9/SP 95 mm 145 mm 37 mm 142 kN 232 kN 2.05 kg
NN 3018 TN9/SPW33 90 mm 140 mm 37 mm 138 kN 216 kN 1.93 kg
NN 3018 TN9/SPC3W33 90 mm 140 mm 37 mm 138 kN 216 kN 1.93 kg
NN 3018 TN9/SP 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/W33VQ497 90 mm 140 mm 37 mm 138 kN 216 kN 1.93 kg
NN 3018 KTN9/VQ554 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/VQ497 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/VQ055 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/UPW33 90 mm 140 mm 37 mm 138 kN 216 kN 1.93 kg
NN 3018 KTN9/UPVR522 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/UP 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/SPW33VR522 90 mm 140 mm 37 mm 138 kN 216 kN 1.93 kg
NN 3018 KTN9/SPW33 90 mm 140 mm 37 mm 138 kN 216 kN 1.93 kg
NN 3018 KTN9/SPVR522 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/SPVR521 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/SPVM127 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/SP 90 mm 140 mm 37 mm 138 kN 216 kN 1.95 kg
NN 3018 KTN9/HC5SPW33 90 mm 140 mm 37 mm 138 kN 1.66 kg
NN 3018 KTN9/HC5SP 90 mm 140 mm 37 mm 138 kN 1.66 kg
NN 3017 TN9/SPW33 85 mm 130 mm 34 mm 125 kN 204 kN 1.53 kg
NN 3017 TN9/SPC2 85 mm 130 mm 34 mm 125 kN 204 kN 1.55 kg
NN 3017 TN9/SP 85 mm 130 mm 34 mm 125 kN 204 kN 1.55 kg
NN 3017 KTN9/VQ554 85 mm 130 mm 34 mm 125 kN 204 kN 1.55 kg
NN 3017 KTN9/UPW33 85 mm 130 mm 34 mm 125 kN 204 kN 1.53 kg
NN 3017 KTN9/UPVR522 85 mm 130 mm 34 mm 125 kN 204 kN 1.55 kg
NN 3017 KTN9/UP 85 mm 130 mm 34 mm 125 kN 204 kN 1.55 kg
NN 3017 KTN9/SPW33 85 mm 130 mm 34 mm 125 kN 204 kN 1.53 kg
NN 3017 KTN9/SPVR521 85 mm 130 mm 34 mm 125 kN 204 kN 1.55 kg
NN 3017 KTN9/SPVS019 85 mm 130 mm 34 mm 125 kN 204 kN 1.55 kg