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Common terms and definitions of bearings (13)
Source: China Bearing Network Time: 2018-02-25
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The difference between the practice height of the thrust bearing and the nominal height.
7. Nominal chamfer dimension
The chamfer scale as a reference.
8. Radial single chamfer dimension
In a single axial plane; the cusp or washer is envisioned from the sharp corner to the intersection between the chamfered outer surface and the ferrule or washer end face intersection.
9. The axial single chamfer dimension is in a single axial plane; the ferrule or washer is envisioned from the sharp corner to the intersection between the chamfered outer surface and the inner diameter of the ferrule or washer or the intersection of the outer surface of the V-belt.
10. Largest permissible single chamfer dimension
The maximum radial or axial single chamfer dimension of the promise.
11. Nominal ball diameter
Usually used to identify the diameter of the ball scale.
12. Single diameter of a ball
The spacing between two parallel planes that are tangent to the actual appearance of the ball.
13. Mean diameter of a ball
The arithmetic mean of the maximum and minimum single diameter of the ball.
14. Ball diameter variation
The difference between the maximum and minimum single diameter of the ball.
15. Ball lot
Assume a certain number of balls with the same conditions; and be considered a whole.
16. Ball grade
The specific combination of the scale, shape, appearance roughness and gauge difference of the ball.
17. Ball gauge
A small difference between the uniform diameter of the ball and the nominal diameter of the ball; this amount is an amount in a series that has been determined.
18. Ball subgauge
The amount of the set of real errors of the ball gauge value closest to the lot.
19. Roller nominal diameter of diameter roller
Usually used to identify the diameter of the diameter of the roller.
Regarding symmetrical rollers; refers to the theoretical diameter in the radial plane passing through the middle of the length of the roller; the largest theoretical diameter for the asymmetric roller (ie, the radial plane including the concealed sharp corner of the large end of the tapered roller) Inside).
20. Single diameter of a roller
The spacing between two straight lines that are tangent and parallel to the actual surface of the roller in a plane perpendicular to the axis of the roller (radial plane).
twenty one. Roller nominal length nomnial length of a roller
Usually used to identify the length of the roller length.
twenty two. Roller practice length actual length of a roller
The interval between two radial planes that just includes the end of the roller practice.
twenty three. Roller gauge
In the same radial plane of the rule; the uniform diameter of the roller has a diameter that is contrary to the upper and lower errors of the nominal diameter of the roller. For a cylindrical roller and a needle, the plane passes through the middle of its length.
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