NACHI bearing cross reference

NACHI bearing cross reference—Before introducing NACHI bearing cross reference, you should pay attention to that the explanation of it is change by the types you choose. The in the follwing I will make a detailed introduction respectively.

NACHI deep groove ball bearings
1.  The most popular types among rolling bearings, widely used in a variety of industries.
2.  Radial load and axial load in both directions can be accommodated.
3.  Suitable for operation at high speed, with low noise and low vibration.
4.  Sealed bearings employing steel shields or rubber seals are filled with the appropriate  volume of grease when manufactured.

NACHI  angular contact ball bearings
1. Bearing rings and balls possess their own contact angle that is normally 15 , 30  or 40 .
Larger contact angle — higher resistance against axial load
Smaller contact angle — more advantageous for high-speed rotation
2. Single-row bearings can accommodate radial load and axial load in one direction.
3. DB and DF matched pair bearings and double-row bearings can accommodate radial load and axial load in both directions.
4. DT matched pair bearings are used for applications where axial load in one direction is too large for one bearing to accept.
5. Angular contact ball bearings are used for high accuracy and high-speed operation.

NACHI self-aligning ball bearings
1.  Spherical outer ring raceway allows self-alignment, accommodating shaft or housing deflection and misaligned mounting conditions.
2. Tapered bore design can be mounted readily using an adapter.
NACHI cylindrical roller bearings
3.  Since the design allowing linear contact of cylindrical rollers with the raceway provides strong resistance to radial load, this type is suitable for use under heavy radial load and impact load, as well as at high speed.
4.  N and NU types are ideal for use on the free side: they are movable in the shaft direction in response to changes in bearing position relative to the shaft or housing, which are caused by heat expansion of the shaft or improper mounting.
5.  NJ and NF types can accommodate axial load in one direction: and NH and NUP types can accommodate partial axial load in both directions.
6.  With separable inner and outer ring, this type ensures easy mounting.
7.  Due to their high rigidity, NNU and NN types are widely used in machine tool spindles.

NACHI tapered roller bearings
1.  Single-row bearings can accommodate radial load and axial load in one direction, and double-row bearings can accommodate radial load and axial load in both directions.
2.  This type of bearing is suitable for use under heavy load or impact load.
3.  Bearings are classified into standard, intermediate and steep types, in accordance with their contact angle.
4.  The larger the contact angle is, the greater the bearing resistance to axial load.
5.  Items sized in inches are still widely used.

NACHI spherical roller bearings
1. Spherical roller bearings comprising barrel-shaped convex rollers, double-row inner ring and outer ring are classified into three types: R(RR), RH(RHR) and RHA, according to their internal structure.
2. With the bearing designed such that the circular arc center of the outer ring raceway matches with the bearing center, the bearing is self-aligning, insensitive to errors of alignment of the shaft relative to the housing, and to shaft bending.
3. This type can accommodate radial load and axial load in both directions, which makes it especially suitable for applications in which heavy load or impact load is applied.
4. The tapered bore type can be easily mounted/dismounted by using an adapter or withdrawal sleeve.

NACHI needle roller bearings
1.  In spite of their basic structure, which is the same as that of NU type cylindrical roller bearings, bearings with minimum ring sections offer space savings and greater resistance to radial load, by using needle rollers.
2.  Bearings with no inner rings function using heat-treated and ground shafts as their raceway surface.

NACHI thrust ball bearings
1.  This type of bearing comprises washer-shaped rings with raceway groove and ball and cage assembly.
2.  These bearings cannot accommodate radial loads.

NACHI spherical thrust roller bearings
1.  This type of bearings, comprising barrel-shaped convex rollers arranged at an angle with the axis, is self-aligning due to spherical housing washer raceway; therefore, shaft inclination can be compensated for to a certain degree.
2.  Great axial load resistance is provided.
This type can accommodate a small amount of radial load as well as heavy axial load.

7330    150 320 65    80 pcs in stock for best price
7330B  150 320 65    79 pcs in stock for best price
7032    160 240 38    78 pcs in stock for best price
7032C  160 240 38   77 pcs in stock for best price
7232    160 290 48   76 pcs in stock for best price
7232B  160 290 48   75 pcs in stock for best price
7232C  160 290 48   74 pcs in stock for best price
7332    160 340 68   73 pcs in stock for best price
7332B  160 340 68   72 pcs in stock for best price
7034    170 260 42   71 pcs in stock for best price
7034C  170 260 42   70 pcs in stock for best price
7234    170 310 52   69 pcs in stock for best price
7234B  170 310 52   68 pcs in stock for best price
7234C  170 310 52   67 pcs in stock for best price
7334    170 360 72   66 pcs in stock for best price
7334B  170 360 72   65 pcs in stock for best price
7036    180 280 46   64 pcs in stock for best price
7036C  180 280 46   63 pcs in stock for best price
7236    180 320 52   62 pcs in stock for best price
7236B  180 320 52    61 pcs in stock for best price
7236C  180 320 52   60 pcs in stock for best price
7336    180 380 75   59 pcs in stock for best price
7336B  180 380 75   58 pcs in stock for best price
7038    190 290 46   57 pcs in stock for best price
7038C  190 290 46   56 pcs in stock for best price
7238    190 340 55   55 pcs in stock for best price
7238B  190 340 55   54 pcs in stock for best price
7338    190 400 78   53 pcs in stock for best price
7338B  190 400 78   53 pcs in stock for best price
7040    200 310 51   52 pcs in stock for best price
7040C  200 310 51   52 pcs in stock for best price
7240    200 360 58   51 pcs in stock for best price
7240B  200 360 58   51 pcs in stock for best price
7340    200 420 80   50 pcs in stock for best price
7340B  200 420 80   50 pcs in stock for best price

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Tel: 86-22-24419493  
Contact person: Jack

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high quality NACHI bearings distributor, NACHI spherical roller bearings