Panduan Sproket Komprehensif:Jenis, Ukuran, Spesifikasi, dan Aplikasi untuk Transmisi Daya yang Andal

Aplikasi:
Digunakan pada mesin tugas ringan hingga menengah untuk menggerakkan rantai untai tunggal, seperti konveyor kecil, mesin pengemas, dan peralatan pertanian.

Contoh Kasus Klien:
“Saya memerlukan sproket sederhana untuk menggerakkan rantai untai tunggal di peralatan saya.”
Cara Mendesain:
Ikuti dimensi rantai standar, gunakan logam yang andal, dan berikan opsi untuk jenis lubang dan hub yang berbeda.

Bagan Ukuran Sproket Metrik (Diameter &Dimensi Pitch Berdasarkan Rantai ISO/BS)

Bagan dimensi sproket metrik di bawah ini menggabungkan semua data tabular dari katalog sproket rantai roller metrik Martin Sprocket, yang mencakup ukuran ISO 06B hingga 32B dan setara ANSInya. Ini mencakup tipe sproket Simplex (tunggal), Duplex (ganda), dan Triplex (triple), dengan detail yang tersedia untuk konfigurasi Tipe A, B, C, dan Taper Bushed. Bagan ini mencantumkan jumlah gigi, diameter pitch, lubang standar dan maksimum, diameter hub, panjang lubang, berat, dan nomor katalog untuk semua ukuran yang tersedia. Hal ini memungkinkan pemilihan cepat dan referensi silang sproket metrik untuk berbagai penggerak rantai industri, memastikan kesesuaian yang tepat untuk ukuran poros dan kebutuhan daya. All chain technical data (pitch, roller diameter, width, tensile strength) is also standardized per ISO/BS standards for easy comparison and specification.

Imperial Sprocket Size Chart in Inches (Pitch Diameter &Dimensions By ANSI Chain)

Below is a reference imperial sprocket dimension table showing the outside diameters (in inches) of sprockets for various roller chain sizes and tooth counts. This chart helps users quickly determine the correct sprocket dimensions for different chain pitches (#25, #35, #40, #50, #60, #80, #100, #120), making sprocket selection and system design easier across a wide range of industrial and mechanical applications.

Sprocket Calculation Formula for Design

When it comes to the design and choose of sprockets, you need to pay attention to the number of teeth, the diameter, the pitch, the pitch circle diameter, and the speed calculations. Sprockets are made with a whole number of teeth, and the actual performance is determined by the diameter and the resulting chain speed and mechanical advantage. The bigger the sprocket, the longer the travel is per revolution, and that’s why you do that. Using a smaller sprocket gears it down and gives mechanical advantage. When you calculate the speed, just plug in the values to find the unknown RPM.

By using the following formulas and concepts, you can accurately design and select sprockets for your application, ensuring both performance and durability in your chain-driven system.

Sprocket Teeth Calculation &Formula

Sprockets are purchased by the number of teeth, as you can’t have a half a tooth on a sprocket, so it’s going to be, you know, seven, eight or nine. The number of teeth is one of the first things you need to know.

Gear Ratio Formula:

Gear Ratio = (Number of teeth on driven sprocket) / (Number of teeth on driving sprocket)

For example, if your driver sprocket has 20 teeth and your driven sprocket has 40 teeth, the gear ratio is 2:1.

Sprocket Diameter Calculation &Formula

When that crankshaft goes one revolution, the distance that the chain moves is determined by the diameter of that sprocket. For example, let’s say arbitrarily that’s four inches. So one revolution of a crankshaft, that tooth is moving forward four inches because it is going to move forward by the diameter of that rim.

Pitch Diameter Formula:

Pitch Diameter (D) = P / sin(π / N)

Where:

• P =Chain pitch (distance between chain pins)
• N =Number of sprocket teeth

Sprocket PCD (Pitch Circle Diameter) Calculation &Formula

PCD, or Pitch Circle Diameter, is the diameter of the circle passing through the centers of all the sprocket’s teeth.

PCD Formula:

PCD = P / sin(180° / N)

Note:If using degrees, convert π radians to 180°.

Sprocket Speed Calculation &Formula

The RPM (revolutions per minute) of chain sprockets on a machine varies depending on several factors including the motor’s RPM or driver’s sprocket RPM, the gearing ratios and the size of the sprockets. To calculate the RPM of the driven sprocket, you need to know the number of teeth on both sprockets and the RPM of the driver sprocket.

Speed (RPM) Formula:

N₂ = (N₁ × T₁) / T₂

Where:

• N₁ =RPM of driving sprocket
• T₁ =Number of teeth on driving sprocket
• T₂ =Number of teeth on driven sprocket
• N₂ =RPM of driven sprocket

Example:
The driver’s chain sprocket has 40 teeth and RPM is 900, where the driven sprocket has 20 teeth.

N₂ = (900 × 40) / 20 = 1,800 RPM

So the driven sprocket will rotate at 1,800 RPM.

Sprocket Pitch Calculation &Formula

Pitch is the distance between the centers of two consecutive chain pins, and it must match the chain being used.

Pitch Formula:

Pitch (P) = Circumference / Number of teeth

Or, simply:
P is defined by the chain standard (e.g., ½”, 5/8″, etc.)

The pitch determines both the chain and sprocket compatibility.