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Ball type rubber bearing

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1, the structure and properties of ball bearing:

QZ series of ball bearing is a bearing plate on the stainless steel plate, the bearing plate, spherical cap lining, ptfe skateboarding (that is, the plane four fluorine board, spherical four fluorine board) and dustproof structure, etc. This series product compared with the ordinary pot rubber bearing, the Angle of larger, flexible rotation, large carrying capacity, permissible displacement characteristics such as large amount, and can better meet the needs of the bearing large Angle. This series of products are widely used in curved bridge and straight bridge, skew bridge, city overpass in bridge engineering, etc. Ball bearing on the bearing plate (including stainless steel plate), spherical cap plate, the bearing plate, plane ptfe board, spherical ptfe board and dustproof structure, etc. Ball bearing is under vertical load to the rotational kinetic energy, and the classified by its horizontal displacement characteristics as follows:

A, two-way activity support: A multidirectional displacement performance, codenamed SX; B, one-way bearing, one-way under horizontal load, with longitudinal displacement performance, codenamed DX; C, fixed support: subject to the horizontal load, all to no displacement, code GD.

The technical characteristics of the bearing:

(1) the vertical bearing capacity of the () is divided into 29, counteracting force level; 1500, 2000, 2500, 1500, 3500400, 4500500, 6000, 7000, 8000, 9000 and 10000, 12500, 00, 15000175 20000225 00250 00275 00300 00325 00350 00400 00450 00500 00550 00600 00 KN.

(2), the bearing design Angle is divided into 5 levels: 0.02, 0.03, 0.04, 0.05, and 0.06 rad.

(3), two-way bearing with one-way bearing the main displacement direction of displacement is divided into 6 level (mm) : 50 mm. + 100, + 150, + 200, + 250, + 300. Two-way activity horizontal displacement of support for + 40 mm, one-way activities bearing transverse displacement limit of + / - 3 mm. Displacement can be adjusted according to actual needs.

(4), in the design of vertical loads, when chrome steel, stainless steel plate with teflon plate after 5201 silicon grease lubrication, temperature scope in 25 ℃ ~ + 60 ℃, the design of friction coefficient 0. 03. When the temperature scope of application in 25 ℃ to 40 ℃ ~ -, design the friction coefficient of 0.05.

(5), horizontal bearing capacity: fixed support level in each direction and a one-way bearing the sliding direction of horizontal bearing capacity are not less than 10% of the vertical bearing capacity of the bearing

2, ball bearing specifications:

> > QZ ball bearing longitudinal activities (ZX) size parameter list

> > series of QZ ball bearing fixed (GD) size parameter table

> > QZ ball bearing activities (DX) garment size series parameter table