What is the base diameter of a spline?
What is the base diameter of a spline?
Base Circle is the circle from which involute spline tooth profiles are constructed. Base Diameter (Db) is the diameter of the base circle. circular pitch. The basic space width for 37.5- and 45-degree pressure angle splines, how- ever, is greater than half the circular pitch.
How do you calculate spline modules?
a spline for a 50mm OD spline with say a module of 2mm would have a PCD (D) of 50 – 2 = 48mm. The number of teeth = D/m and as an whole number of teeth is required a value of D = 48mm is easily selected with number of teeth z =24 teeth.
What is a 16 32 spline?
This fraction is called the diametral pitch. The numerator of the fraction is the pitch of the spline. If we had a 16/32 spline, the pitch of the spline would be 16 (16 teeth on a 1.000″ pitch diameter), and the addendum would be 1/32″ (. 031″). These type of splines are said to have stub teeth.
How do you create involute splines?
Design involute splines
- On the ribbon, click Design tab Power Transmission panel Involute Splines .
- On the Design tab: Click the arrow next to the Splines Type edit field to select the spline. Enter the spline dimensions. Specify the position of a shaft groove.
- Select OK.
How are internal splines measured?
Gage pin measurements: One, two, or three-gage pins of a specific diameter placed in the spaces of the spline can be used to obtain a measurement over or between pins. A gage pin of a specific size will contact the involute sides of the spline teeth.
What are the types of splines?
There are numerous types of spline shafts, including, involute splines, which have short, curved, and evenly spaced teeth; parallel splines, which are short, straight sided splines; serrated splines, which are V shaped; and helical splines, which are built for optimal load sharing.
What is involute spline?
Involute splines are the predominant form of splines because they are stronger than straight sided splines and are easier to cut and the fit. Involute splines have teeth similar to gear teeth except spline teeth are much shorter, and they do not roll.
How do you draw an involute gear tooth profile?
When drawing an involute, you draw one side of one tooth, mirror that to make a whole tooth, and that copy that around your gear the right number of times. A new involute has to be drawn for each size of gear in your system. To begin drawing, lay out three concentric circles: One at the pitch circle.
How big is a SAE spline adjuster shaft?
The slack adjuster can apply ~2,300 lb*ft of torque max to the shaft. The splined length of the slack adjuster is 1.00″. The shaft will be ~12 inches in length.
What is the torque capacity of a SAE spline?
The torque capacity per unit length of an SAE spline is based on a 1,000 psi bearing stress on the sides. Depending on the class of fit, a spline is able to accommodate axial movement along the shaft and still transmit torque.
How are SAE splines the same as keys?
Splines have the same failure mechanisms as keys: 1) shear or 2) bearing. The torque capacity per unit length of an SAE spline is based on a 1,000 psi bearing stress on the sides. Depending on the class of fit, a spline is able to accommodate axial movement along the shaft and still transmit torque.
How big is the hub of a spline?
Spline Number of Teeth Nom Spline O.D. Specifications of Spline Hub Length Hub Diameter 11 3/4” 16/32 DP INV CL 5 1.50” 1.500” 12 13/16” 16/32 DP INV CL 5 1.50” 1.500” 13 7/8” 16/32 DP INV CL 5 1.50” 1.500” 13 1 3/4” 8/16 DP INV CL 5 2.25” 3.000”
