TBI Ball Spline SOF Series

NegotiableUpdate on 04/19

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Overview

Advantages and features: The TBI ball spline SOF series can be divided into hollow spline shafts and solid spline shafts TBI ball spline shaft spline function is a high-speed, low support rotating body, so its dynamic balance is crucial

Product Details

Advantages and Characteristics:The TBI ball spline SOF series is divided into hollow spline shafts and solid spline shafts TBI ball spline shaft spline function is a high-speed, low support rotating body, so its dynamic balance is crucial. Generally, the transmission shaft needs to undergo a dynamic balancing test before leaving the factory and be adjusted on the balancing machine.

Characteristics of TBI Ball Spline

According to the different tooth heights of TBI ball spline shafts, the tooth profile dimensions of TBI ball spline shaft splines are specified in two series in the standard, namely the light series and the medium series. The load-bearing capacity of the light series is relatively low, and it is mostly used for static or light load connections; The medium series is used for medium loads.

The centering method for rectangular splines is small diameter centering, where the small diameter of the external and internal splines serves as the mating surface. Its characteristics are high centering accuracy, good centering stability, and the ability to eliminate deformation caused by heat treatment through grinding. Rectangular spline connection is the most widely used spline connection. Widely used. Such as aviation engines, automobiles, gas turbines, machine tools, construction machinery, tractors, agricultural machinery, and general mechanical transmission devices, etc.

The tooth profile of the involute TBI spline shaft is involute, and there are two types of pitch circle pressure angles α: 30 ° and 45 °. The tooth crest heights are 0.5m and 0.4m respectively (m is the modulus). The involute spline can be processed using the method of manufacturing gears, which has good processability and is easy to achieve high manufacturing accuracy and interchangeability.

The centering method of the involute TBI spline shaft is tooth profile centering. When loaded, there is a radial force on the teeth, which can automatically center the teeth and promote uniform force distribution, high strength, and long service life. Used for connections with large loads, high centering accuracy requirements, and large dimensions, such as aviation engines, gas turbines, automobiles, etc. Splines with a pressure angle of 45 ° are commonly used for connecting light loads, small diameters, and thin parts.
Definition of TBI Ball Spline Model

Definition of TBI Ball Spline Single Output Model

TBI Ball Spline Solid Shaft Cross Section Diagram

The solid cross-sectional shape of the TBI ball spline SOF series is shown in the following figure. The spline shaft end is a flange type, which can exceed the groove diameter (∅ d) under the condition of pit energy. The SOF series spline is precisely ground by rolling the groove of the spline, connected to high precision, and then matched with the outer cylinder

TBI Ball Spline Hollow Shaft Sectional View

If it is necessary to reduce the weight of piping, wiring, and exhaust cargo, a hollow SOF spline shaft can be used

Advantages of TBI Ball Spline

Using flanges to fix the outer cylinder on the support base with screws, it is suitable for use in industries such as 3C and semiconductor due to its simple assembly.

Pre pressing of TBI ball spline on rigidity

Preloading is the process of applying a load to the ball bearings in advance, with the aim of eliminating clearance in the direction of rotation and improving rigidity. When preloading is applied, the ball spline can eliminate the clearance in the direction of rotation and increase rigidity according to the strength of preloading. Figure 1 shows the displacement in the direction of rotation when a rotational torque is applied. Figure 2 shows that the effect of preloading is maintained until 2.8 times the preloading load. Compared to without preloading, the displacement at the same torque is 1/2, and the rigidity is more than twice.

Figure 1 Figure 2

Installation of TBI ball spline

Note: Although the fixing strength of the SOF spline shaft direction is not required to be very high, it should be avoided to only knock it in without fixing it

TBI-SOF series model size diagram

TBI-SOF series models

SOF008 SOF010 SOF013 SOF016 SOF020 SOF025