Engineering

SECS have dedicated seasoned engineers that can assist you in the design and selection of the products you require. You will receive helpful information in a timely fashion. Our Engineers work directly with our manufacturing personnel to insure the proper design and completion of your parts and/or assemblies. SECS Engineers will also check your products to insure the quality of your parts are exact to order and meet your and SECS quality standards. Our Engineers will assist in creating drawings for your parts if needed and help obtain any missing information that you may need for the successful manufacturing of your parts.

If you have any technical questions or require the assistance of a SECS engineer contact:

engineering@secsinc.com

 

GEAR FORMULA  
CALCULATE FORMULA
DIAMETRAL PITCH (P) P=N/PD          PITCH DIAMETER (PD) AND THE NUMBER OF TEETH (N)
DIAMETRAL PITCH (P) P=3.1416/P     CIRCULAR PITCH (P)
DIAMETRAL PITCH (P) P=(N+2)/OD   OUTSIDE DIAMETER (OD) AND THE NUMBER OF TEETH (N)
PITCH DIAMETER (PD) PD=N/DP          NUMBER OF TEETH (N) AND THE DIAMETRAL PITCH (P)
OUTSIDE DIAMETER (OD) OD=(N+2)/DP    NUMBER OF TEETH (N) AND THE DIAMETRAL PITCH (DP)
NUMBER OF TEETH (N) N=PD*DP          PITCH DIAMETER (PD) AND THE DIAMETRAL PITCH (DP)
ADDENDUM (A) A=1/DP             DIAMETRAL PITCH (DP)
DEDENDUM (D) D=HW-A           WHOLE DEPTH (HW)AND ADDENDUM (A)
TOOTH THICKNESS (T) AT THE PITCH DIAMETER T=1.5708/DP     DIAMETRAL PITCH (DP)
WORKING DEPTH (WD) WD=2(A)         ADDENDUM (A)
CENTER DISTANCE ( C )  C=(N1+N2)/2DP  DIAMETRAL PITCH (DP) AND THE NUMBER OF TEETH IN BOTH GEARS
CENTER DISTANCE ( C )  C=(PD1+PD2)/2  PITCH DIAMETERS OF BOTH GEARS (PD)
CIRCULAR PITCH (CP) CP=3.1416/DP  DIAMETRAL PITCH (DP)
WHOLE  DEPTH (HW) FOR 20 PITCH & FINER HW=2.2/DP+.002   DIAMETRAL PITCH (DP)
   
HELICAL GEAR  
CALCULATE FORMULA
NORMAL D.P. (Pn) Pn=P/cos A           TRANVERSE D.P.(P) AND THE HELIX ANGLE (A)
NORMAL D.P. (Pn) Pn=N/(PD X COS A)     NUMBER OF TEETH (N), PITCH DIAMETER (PD) AND THE HELIX ANGLE (A)
PITCH DIAMETER (PD) PD=N/(Pn X A)   NUMBER OF TEETH (N), THE NORMAL DIAMETRAL PITCH (Pn) AND THE HELIX ANGLE (A)
OUTSIDE DIAMETER (OD) OD=PD+(2 X a)    PITCH DIAMETER (PD) AND THE ADDENDUM (a)
OUTSIDE DIAMETER (OD) OD=PD+2/Pn       PITCH DIAMETER (PD) AND NORMAL DIAMETRAL PITCH (Pn)
ADDENDUM a=1/Pn   NORMAL DIAMETRAL PITCH (Pn)