Bearing 7310 A SPZ, . Type - tapered roller. Single row. Separable. Metric dimensions (dxDxT): 50x110x29.25 mm. Corresponds to the international bearing designation 30310 DIN720 / ISO355.

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Manufacturer designation:


Designation via standards:

30310 DIN 720;
7310 GOST 27365-87, formerly GOST 333-79


The bearing consists of two rings (inner and outer) and rolling elements (tapered rollers) which are connected by a cage. The inner ring with a cage and rolling elements is a CONE. The outer ring is a CUP.
The design of tapered roller bearings suites for the perception of combined (radial and axial) loads. Tapered roller bearings have a split construction: the inner ring with the rollers and separator create the unit, that can be mounted separately from the outer ring.


Metric dimensions


Weight, W

1.25 kg

Inner diameter, d

50 mm

Outer diameter, D

110 mm

Total width, T

29.25 mm

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