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Product Parameter
Bearing symbol Principal dimensions (mm) Basic rated load (KN) Limit speed (r/min) Fitting dimension
(mm)
Weight(kg)
d D B rsmin r1smin F E Cr Cor Grease Oil da(min) da(max) db(min) Da(max) Da(min) ra(max) rb(max)
NN3020K 100 150 37 1.5 137 168 292 5300 6300 - - 119.4 - 6 2.5 108 142 1.5 2.27
NN3020K/W33 100 150 37 1.5 137 168 292 3600 4500 - - 119.1 - 6 2.5 108 142 1.5 2.24
NNAL6/101.6Q4/C5W33XYA2 101.6 171.45 133.35 2 2 127 - 540 1420 3000 3600 - - - - - - - 13.64
NNAL6/101.6/C5W33XYAB 101.6 171.45 133.35 2 2 127 - 529 1220 3000 3600 - - - - - - - 13.5
NN3024K/W33 120 180 46 2 165 267 445 4300 5000 - - 142.6 - 7.5 4 130 171 2 3.96
NNU49/25.4 127 174 75.406 1.5 1.5 139.5 - 234 530 2800 3400 - - - - - - - 5.34
AD4537D/C4 139.7 203.2 146.588 2.5 158.75 - - 560 813 - - - - - - - - - 16.9
NN3028K 140 210 53 2 192 320 575 3800 4500 - - 166.4 - - - 149 201 2 6.34
NN3028 140 210 53 2 192 320 575 3800 4500 - - 166.4 - - - 149 201 2 6.34
AD40540D/C4 146.05 209.55 161.925 3.5 165.1 - - 672 1740 - - - - - - - - - 18.8
AD40540D/C4/YB4 146.05 209.55 161.925 3.5 165.1 - - 672 1740 - - - - - - - - - 18.8
NNAL6/158.75Q4/W33XYA2 158.75 231.775 161.925 2.1 2.1 177.3 - 980 2070 - - - - - - - - - 22.6
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Introduction
& nbsp; & nbsp; & nbsp; & nbsp; Dalian metallurgy provides many cylindrical roller bearings of different designs, size series and sizes. Most of them are single row bearings with a cage. In addition, single row and double row full roller bearings (without cage) constitute the standard configuration of bearing varieties used in general engineering by AWD. The bearing with cage can bear large radial load and run at high speed. Full roller bearings are suitable for very heavy radial loads at medium speeds. & nbsp; & nbsp; & nbsp; cylindrical roller bearing, roller is one of the key components. Its geometry, the so-called logarithmic shape, provides the best stress distribution in the contact area of the bearing. Its surface finish can promote the formation of lubricant film and optimize the rolling of roller. Compared with traditional design, the benefits from simultaneous interpreting include increasing operational reliability and greater tolerance for misalignment. dyzv cylindrical roller bearing has the following design features: 1. Optimizing the design of roller and flange can improve the axial bearing capacity of bearing 2. Optimize the geometric surface design between roller and raceway to balance the radial load 3.limit the width of the wheel cross groove, increase the contact area between the raceway and the roller and improve the radial bearing capacity 4. Adopt high standard materials and strictly control the content of elements in materials, such as Ti & lt; 30ppm (titanium content) 5. Low noise design is adopted to achieve V1 noise level, which is conducive to low noise operation of automobile engine and gearbox.
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