engineering-dat/power-transmission-dat/power-transmission-dat.md
... ...
@@ -0,0 +1,18 @@
1
+
2
+# power-transmission-dat
3
+
4
+
5
+- [[belt-dat]] - [[chain-dat]]
6
+
7
+
8
+- [[bearing-dat]]
9
+
10
+- [[belt-dat]] - [[belt-sys-dat]]
11
+
12
+- [[shaft-dat]] - [[shaft-coupler-dat]]
13
+
14
+- [[timing-pulley-dat]] - [[idler-dat]]
15
+
16
+## ref
17
+
18
+- [[engineering-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/belt-dat/belt-dat.md
... ...
@@ -0,0 +1,14 @@
1
+
2
+# belt-sys-dat
3
+
4
+
5
+- [[timing-pulley-dat]] - [[idler-dat]] - [[belt-dat]]
6
+
7
+
8
+
9
+
10
+
11
+
12
+## ref
13
+
14
+- [[belt-sys]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/belt-dat/belt-dat/belt-dat.md
... ...
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1
+
2
+
3
+
4
+# belt-dat
5
+
6
+
7
+## open loop belt
8
+
9
+GT2_Belt_6mm
10
+
11
+
12
+
13
+## 闭环同步带
14
+
15
+
16
+GT2-6-200（2mm pitch，6mm 宽，200mm 周长）
17
+
18
+
19
+
20
+
21
+## 紧张方案
22
+
23
+✅ 方案 2：惰轮张紧（最优雅）
24
+ O ← 惰轮
25
+ / \
26
+==== ====
27
+
28
+
29
+惰轮压在同步带背面
30
+
31
+微调惰轮位置即可张紧
32
+
33
+优点
34
+
35
+中心距可固定
36
+
37
+微调方便
38
+
39
+张力可控
40
+
41
+缺点：
42
+
43
+多一个轮子
44
+
45
+占空间
46
+
47
+
48
+
49
+
50
+Compact closed-loop GT2 timing belt configuration and length calculation.
51
+
52
+## Overview
53
+- Belt type: GT2 (2 mm pitch)
54
+- Belt width: 6 mm
55
+- Pulley teeth (both ends): 20T × 2 (1:1 drive)
56
+- Center distance (C): 149 mm
57
+
58
+## Formulas
59
+- Pulley pitch diameter:
60
+
61
+ D = (T × P) / π
62
+
63
+ where
64
+ - D = pulley pitch diameter (mm)
65
+ - T = number of teeth
66
+ - P = belt pitch (mm)
67
+
68
+- Closed-loop belt length for two equal pulleys (1:1):
69
+
70
+ L = 2C + πD
71
+
72
+ where
73
+ - L = belt pitch-line length (mm)
74
+ - C = center distance between shafts (mm)
75
+
76
+## Example calculation (20T GT2 pulley)
77
+1. Pulley pitch diameter:
78
+
79
+ T = 20 teeth
80
+ P = 2 mm
81
+
82
+ D = (20 × 2) / π ≈ 40 / π ≈ 12.73 mm
83
+
84
+2. Belt length:
85
+
86
+ L = 2 × 149 + π × 12.73
87
+ L ≈ 298 + 40 = 338 mm
88
+
89
+## Recommendation
90
+- Preferred standard belt: **GT2-6-340** (GT2, 6 mm width, 340 mm circumference) — strongly recommended.
91
+- GT2-6-338 is not a standard size and is hard to source.
92
+- Choose the 340 mm belt and use an adjustable tensioning mechanism (tensioner or idler) to take up the ~2 mm difference.
93
+
94
+## Summary (specifications)
95
+- Pitch: GT2 (2 mm)
96
+- Width: 6 mm
97
+- Recommended belt circumference: 340 mm
98
+- Pulleys: 20T × 2 (both ends)
99
+- Center distance: 149 mm
100
+
101
+Notes:
102
+- Using a standard 340 mm belt simplifies sourcing and inventory.
103
+- Use a tensioner to ensure proper belt tension and compensate for the small length difference.
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/2025-04-11-16-38-50.png
... ...
Binary files /dev/null and b/mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/2025-04-11-16-38-50.png differ
mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/2025-04-11-17-02-34.png
... ...
Binary files /dev/null and b/mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/2025-04-11-17-02-34.png differ
mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/pulley-dat.md
... ...
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1
+
2
+# timing-pulley-dat
3
+
4
+
5
+
6
+- [[pulley-dat]] - [[pulley-drive-dat]] - [[pulley-drive-dat]]
7
+
8
+
9
+| modes | category | teeth | inner diameter | belt width | note |
10
+| :------------- | :------- | :---- | :------------- | :--------- | :---: |
11
+| GT2_20T_8B_6mm | 2GT | 20 | 8 | 6 | - |
12
+
13
+
14
+
15
+
16
+### GT2_Timing_Pulley_20T_8B_6mm v8
17
+
18
+The **GT2 Timing Pulley 20T 8B 6mm (v8)** refers to a specific type of timing pulley used in belt-driven motion systems, often found in 3D printers, CNC machines, and other precision mechanical setups. Here’s a breakdown of its specifications:
19
+
20
+- **GT2**: Refers to the pulley type designed for **GT2 timing belts**, which have a 2mm pitch (distance between teeth). This type is commonly used in applications requiring precise movement and low backlash.
21
+- **Timing Pulley**: A mechanical component with teeth that engage with a timing belt to transfer motion with high accuracy.
22
+- **20T**: This pulley has **20 teeth**, which affects the step resolution and speed of the driven mechanism.
23
+- **8B**: Indicates an **8mm bore diameter**, meaning it fits shafts with an 8mm diameter.
24
+- **6mm**: This refers to the **belt width** it is compatible with, which is typically a **6mm-wide GT2 timing belt**.
25
+- **v8**: This likely refers to the **version** or **design iteration** of the pulley.
26
+
27
+This pulley is commonly used in precise motion control applications like 3D printing, where smooth and accurate belt-driven motion is needed. Let me know if you need further details! 🚀
28
+
29
+
30
+
31
+
32
+## GT2_Timing_Pulley_20T_8B_6mm
33
+
34
+- **GT2**: Refers to the tooth profile – 2 mm pitch (distance between teeth), ideal for precise motion control (e.g., 3D printers).
35
+- **20T**: 20 Teeth – the pulley has 20 teeth around its circumference.
36
+- **8B**: 8 mm **inner bore diameter** (fits an 8 mm shaft).
37
+- **6mm**: **Belt width** – designed for 6 mm wide GT2 timing belts.
38
+
39
+## Summary:
40
+This is a 20-tooth GT2 pulley with an 8 mm bore, suitable for 6 mm belts. It's commonly used in 3D printers, CNC machines, and robotics for accurate belt-driven motion.
41
+
42
+https://cad.onshape.com/documents/707b8372a3c9ced9cde96289/v/ee73401f89c866bc22119094/e/19e0ed0d5720546e9089804c?showReturnToWorkspaceLink=true
43
+
44
+- measured witdth = 9 mm
45
+- measured hole = 5 mm
46
+
47
+![](2025-04-11-16-38-50.png)
48
+
49
+## GT2_Timing_Pulley_20T_8B_5mm
50
+
51
+the following images show inner hole 5mm, not 6mm
52
+
53
+![](2025-04-11-17-02-34.png)
54
+
55
+
56
+## timing pulley VS. Coupler
57
+
58
+### 🔧 1. Function
59
+
60
+| Aspect | **Timing Pulley** | **Idler Pulley** |
61
+| ------- | ------------------------------------------------- | ------------------------------------------------ |
62
+| Purpose | Transmits power between shafts via timing belt | Guides or maintains tension in the belt |
63
+| Motion | Rotates with and drives the shaft it's mounted on | Usually free-spinning (not connected to a motor) |
64
+
65
+---
66
+
67
+### 🔁 2. Power Transmission
68
+
69
+| Aspect | **Timing Pulley** | **Idler Pulley** |
70
+| -------------- | ----------------------------------------------- | ------------------------------------------- |
71
+| Power Transfer | Yes – transfers torque and synchronizes timing | No – only redirects or tensions the belt |
72
+| Engagement | Toothed belt fits precisely to prevent slippage | May or may not be toothed; sometimes smooth |
73
+
74
+---
75
+
76
+### ⚙️ 3. Mounting and Design
77
+
78
+| Aspect | **Timing Pulley** | **Idler Pulley** |
79
+| -------------- | -------------------------------------- | ------------------------------------------- |
80
+| Shaft Mount | Mounted on driven or driving shaft | Mounted on a stationary or pivoting bracket |
81
+| Size Variation | Chosen for gear ratio and torque needs | Chosen based on tensioning or routing needs |
82
+
83
+---
84
+
85
+#### 🛠️ Example Scenario
86
+
87
+In a **3D printer or CNC machine**, the motor uses a **timing pulley** to drive a toothed belt, while an **idler pulley** on the other side keeps the belt tight and correctly aligned.
88
+
89
+
90
+## ref
91
+
92
+- [[timing-pulley]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/pulley-drive-dat/2026-01-07-14-55-34.png
... ...
Binary files /dev/null and b/mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/pulley-drive-dat/2026-01-07-14-55-34.png differ
mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/pulley-drive-dat/pulley-drive-dat.md
... ...
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1
+
2
+# pulley-drive-dat
3
+
4
+
5
+- [[pulley-dat]] - [[pulley-drive-dat]] - [[pulley-drive-dat]]
6
+
7
+![](2026-01-07-14-55-34.png)
8
+
9
+
10
+- 普通版（16齿高14)内孔5mm
11
+- 普通版（20齿高16)内孔5mm
12
+- 普通版（20齿高16)内孔6.35mm
13
+- 普通版（20齿高16)内孔8mm
14
+- 普通版（20齿带宽6)内孔6mm
15
+- 普通版（20齿高16)内孔4mm
16
+- 普通版（16齿高14)内孔6mm
17
+- 高品质（16齿高14)内孔5mm
18
+- 高品质（20齿高16)内孔5mm
19
+- 高品质（20齿高16)内孔6.35mm
20
+- 高品质（20齿高16)内孔8mm
21
+- 高品质（20齿带宽6)内孔6mm
22
+- 30齿内孔5mm（带宽6mm）
23
+- 30齿内孔8mm（带宽6mm）
24
+- 36齿内孔5mm（带宽6mm）
25
+- 36齿内孔6.35mm（带宽6mm）
26
+- 36齿内孔8mm（带宽6mm）
27
+- 40齿内孔6.35mm（带宽6mm）
28
+- 40齿内孔5mm（带宽6mm）
29
+- 40齿内孔8mm（带宽6mm）
30
+- 40齿内孔10mm（带宽6mm）
31
+- 40齿内孔12mm（带宽6mm）
32
+- 80齿内孔5mm（带宽6mm）
33
+- 80齿内孔5mm（带宽6mm）黑色
34
+- 40齿/内径5mm带宽10
35
+- 16齿内孔5mm高20带宽10
36
+- 20齿内孔5mm高19带宽10
37
+- 20齿内孔6.35mm高19带宽10
38
+- 20齿内孔8mm高19带宽10
39
+- 20齿内孔6.35mm带宽10外径14
40
+- M3扳手【适用16齿同步轮】
41
+- M4扳手【适用20齿及以上同步轮】
42
+
43
+
mechanics-dat/mechanical-structure-dat/belt-dat/pulley-dat/pulley-idler-dat/pulley-idler-dat.md
... ...
@@ -0,0 +1,15 @@
1
+
2
+# idler-dat
3
+
4
+
5
+
6
+- [[pulley-dat]] - [[pulley-drive-dat]] - [[pulley-drive-dat]]
7
+
8
+
9
+## GT2_Idler_20T_5B_6mm
10
+
11
+
12
+
13
+## ref
14
+
15
+- [[idler]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/belt-sys-dat/belt-dat/belt-dat.md
... ...
@@ -1,103 +0,0 @@
1
-
2
-
3
-
4
-# belt-dat
5
-
6
-
7
-## open loop belt
8
-
9
-GT2_Belt_6mm
10
-
11
-
12
-
13
-## 闭环同步带
14
-
15
-
16
-GT2-6-200（2mm pitch，6mm 宽，200mm 周长）
17
-
18
-
19
-
20
-
21
-## 紧张方案
22
-
23
-✅ 方案 2：惰轮张紧（最优雅）
24
- O ← 惰轮
25
- / \
26
-==== ====
27
-
28
-
29
-惰轮压在同步带背面
30
-
31
-微调惰轮位置即可张紧
32
-
33
-优点
34
-
35
-中心距可固定
36
-
37
-微调方便
38
-
39
-张力可控
40
-
41
-缺点：
42
-
43
-多一个轮子
44
-
45
-占空间
46
-
47
-
48
-
49
-
50
-Compact closed-loop GT2 timing belt configuration and length calculation.
51
-
52
-## Overview
53
-- Belt type: GT2 (2 mm pitch)
54
-- Belt width: 6 mm
55
-- Pulley teeth (both ends): 20T × 2 (1:1 drive)
56
-- Center distance (C): 149 mm
57
-
58
-## Formulas
59
-- Pulley pitch diameter:
60
-
61
- D = (T × P) / π
62
-
63
- where
64
- - D = pulley pitch diameter (mm)
65
- - T = number of teeth
66
- - P = belt pitch (mm)
67
-
68
-- Closed-loop belt length for two equal pulleys (1:1):
69
-
70
- L = 2C + πD
71
-
72
- where
73
- - L = belt pitch-line length (mm)
74
- - C = center distance between shafts (mm)
75
-
76
-## Example calculation (20T GT2 pulley)
77
-1. Pulley pitch diameter:
78
-
79
- T = 20 teeth
80
- P = 2 mm
81
-
82
- D = (20 × 2) / π ≈ 40 / π ≈ 12.73 mm
83
-
84
-2. Belt length:
85
-
86
- L = 2 × 149 + π × 12.73
87
- L ≈ 298 + 40 = 338 mm
88
-
89
-## Recommendation
90
-- Preferred standard belt: **GT2-6-340** (GT2, 6 mm width, 340 mm circumference) — strongly recommended.
91
-- GT2-6-338 is not a standard size and is hard to source.
92
-- Choose the 340 mm belt and use an adjustable tensioning mechanism (tensioner or idler) to take up the ~2 mm difference.
93
-
94
-## Summary (specifications)
95
-- Pitch: GT2 (2 mm)
96
-- Width: 6 mm
97
-- Recommended belt circumference: 340 mm
98
-- Pulleys: 20T × 2 (both ends)
99
-- Center distance: 149 mm
100
-
101
-Notes:
102
-- Using a standard 340 mm belt simplifies sourcing and inventory.
103
-- Use a tensioner to ensure proper belt tension and compensate for the small length difference.
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/belt-sys-dat/belt-sys-dat.md
... ...
@@ -1,14 +0,0 @@
1
-
2
-# belt-sys-dat
3
-
4
-
5
-- [[timing-pulley-dat]] - [[idler-dat]] - [[belt-dat]]
6
-
7
-
8
-
9
-
10
-
11
-
12
-## ref
13
-
14
-- [[belt-sys]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/2025-04-11-16-38-50.png
... ...
Binary files a/mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/2025-04-11-16-38-50.png and /dev/null differ
mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/2025-04-11-17-02-34.png
... ...
Binary files a/mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/2025-04-11-17-02-34.png and /dev/null differ
mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/pulley-dat.md
... ...
@@ -1,92 +0,0 @@
1
-
2
-# timing-pulley-dat
3
-
4
-
5
-
6
-- [[pulley-dat]] - [[pulley-drive-dat]] - [[pulley-drive-dat]]
7
-
8
-
9
-| modes | category | teeth | inner diameter | belt width | note |
10
-| :------------- | :------- | :---- | :------------- | :--------- | :---: |
11
-| GT2_20T_8B_6mm | 2GT | 20 | 8 | 6 | - |
12
-
13
-
14
-
15
-
16
-### GT2_Timing_Pulley_20T_8B_6mm v8
17
-
18
-The **GT2 Timing Pulley 20T 8B 6mm (v8)** refers to a specific type of timing pulley used in belt-driven motion systems, often found in 3D printers, CNC machines, and other precision mechanical setups. Here’s a breakdown of its specifications:
19
-
20
-- **GT2**: Refers to the pulley type designed for **GT2 timing belts**, which have a 2mm pitch (distance between teeth). This type is commonly used in applications requiring precise movement and low backlash.
21
-- **Timing Pulley**: A mechanical component with teeth that engage with a timing belt to transfer motion with high accuracy.
22
-- **20T**: This pulley has **20 teeth**, which affects the step resolution and speed of the driven mechanism.
23
-- **8B**: Indicates an **8mm bore diameter**, meaning it fits shafts with an 8mm diameter.
24
-- **6mm**: This refers to the **belt width** it is compatible with, which is typically a **6mm-wide GT2 timing belt**.
25
-- **v8**: This likely refers to the **version** or **design iteration** of the pulley.
26
-
27
-This pulley is commonly used in precise motion control applications like 3D printing, where smooth and accurate belt-driven motion is needed. Let me know if you need further details! 🚀
28
-
29
-
30
-
31
-
32
-## GT2_Timing_Pulley_20T_8B_6mm
33
-
34
-- **GT2**: Refers to the tooth profile – 2 mm pitch (distance between teeth), ideal for precise motion control (e.g., 3D printers).
35
-- **20T**: 20 Teeth – the pulley has 20 teeth around its circumference.
36
-- **8B**: 8 mm **inner bore diameter** (fits an 8 mm shaft).
37
-- **6mm**: **Belt width** – designed for 6 mm wide GT2 timing belts.
38
-
39
-## Summary:
40
-This is a 20-tooth GT2 pulley with an 8 mm bore, suitable for 6 mm belts. It's commonly used in 3D printers, CNC machines, and robotics for accurate belt-driven motion.
41
-
42
-https://cad.onshape.com/documents/707b8372a3c9ced9cde96289/v/ee73401f89c866bc22119094/e/19e0ed0d5720546e9089804c?showReturnToWorkspaceLink=true
43
-
44
-- measured witdth = 9 mm
45
-- measured hole = 5 mm
46
-
47
-![](2025-04-11-16-38-50.png)
48
-
49
-## GT2_Timing_Pulley_20T_8B_5mm
50
-
51
-the following images show inner hole 5mm, not 6mm
52
-
53
-![](2025-04-11-17-02-34.png)
54
-
55
-
56
-## timing pulley VS. Coupler
57
-
58
-### 🔧 1. Function
59
-
60
-| Aspect | **Timing Pulley** | **Idler Pulley** |
61
-| ------- | ------------------------------------------------- | ------------------------------------------------ |
62
-| Purpose | Transmits power between shafts via timing belt | Guides or maintains tension in the belt |
63
-| Motion | Rotates with and drives the shaft it's mounted on | Usually free-spinning (not connected to a motor) |
64
-
65
----
66
-
67
-### 🔁 2. Power Transmission
68
-
69
-| Aspect | **Timing Pulley** | **Idler Pulley** |
70
-| -------------- | ----------------------------------------------- | ------------------------------------------- |
71
-| Power Transfer | Yes – transfers torque and synchronizes timing | No – only redirects or tensions the belt |
72
-| Engagement | Toothed belt fits precisely to prevent slippage | May or may not be toothed; sometimes smooth |
73
-
74
----
75
-
76
-### ⚙️ 3. Mounting and Design
77
-
78
-| Aspect | **Timing Pulley** | **Idler Pulley** |
79
-| -------------- | -------------------------------------- | ------------------------------------------- |
80
-| Shaft Mount | Mounted on driven or driving shaft | Mounted on a stationary or pivoting bracket |
81
-| Size Variation | Chosen for gear ratio and torque needs | Chosen based on tensioning or routing needs |
82
-
83
----
84
-
85
-#### 🛠️ Example Scenario
86
-
87
-In a **3D printer or CNC machine**, the motor uses a **timing pulley** to drive a toothed belt, while an **idler pulley** on the other side keeps the belt tight and correctly aligned.
88
-
89
-
90
-## ref
91
-
92
-- [[timing-pulley]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/pulley-drive-dat/2026-01-07-14-55-34.png
... ...
Binary files a/mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/pulley-drive-dat/2026-01-07-14-55-34.png and /dev/null differ
mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/pulley-drive-dat/pulley-drive-dat.md
... ...
@@ -1,43 +0,0 @@
1
-
2
-# pulley-drive-dat
3
-
4
-
5
-- [[pulley-dat]] - [[pulley-drive-dat]] - [[pulley-drive-dat]]
6
-
7
-![](2026-01-07-14-55-34.png)
8
-
9
-
10
-- 普通版（16齿高14)内孔5mm
11
-- 普通版（20齿高16)内孔5mm
12
-- 普通版（20齿高16)内孔6.35mm
13
-- 普通版（20齿高16)内孔8mm
14
-- 普通版（20齿带宽6)内孔6mm
15
-- 普通版（20齿高16)内孔4mm
16
-- 普通版（16齿高14)内孔6mm
17
-- 高品质（16齿高14)内孔5mm
18
-- 高品质（20齿高16)内孔5mm
19
-- 高品质（20齿高16)内孔6.35mm
20
-- 高品质（20齿高16)内孔8mm
21
-- 高品质（20齿带宽6)内孔6mm
22
-- 30齿内孔5mm（带宽6mm）
23
-- 30齿内孔8mm（带宽6mm）
24
-- 36齿内孔5mm（带宽6mm）
25
-- 36齿内孔6.35mm（带宽6mm）
26
-- 36齿内孔8mm（带宽6mm）
27
-- 40齿内孔6.35mm（带宽6mm）
28
-- 40齿内孔5mm（带宽6mm）
29
-- 40齿内孔8mm（带宽6mm）
30
-- 40齿内孔10mm（带宽6mm）
31
-- 40齿内孔12mm（带宽6mm）
32
-- 80齿内孔5mm（带宽6mm）
33
-- 80齿内孔5mm（带宽6mm）黑色
34
-- 40齿/内径5mm带宽10
35
-- 16齿内孔5mm高20带宽10
36
-- 20齿内孔5mm高19带宽10
37
-- 20齿内孔6.35mm高19带宽10
38
-- 20齿内孔8mm高19带宽10
39
-- 20齿内孔6.35mm带宽10外径14
40
-- M3扳手【适用16齿同步轮】
41
-- M4扳手【适用20齿及以上同步轮】
42
-
43
-
mechanics-dat/mechanical-structure-dat/belt-sys-dat/pulley-dat/pulley-idler-dat/pulley-idler-dat.md
... ...
@@ -1,15 +0,0 @@
1
-
2
-# idler-dat
3
-
4
-
5
-
6
-- [[pulley-dat]] - [[pulley-drive-dat]] - [[pulley-drive-dat]]
7
-
8
-
9
-## GT2_Idler_20T_5B_6mm
10
-
11
-
12
-
13
-## ref
14
-
15
-- [[idler]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/chain-dat/2026-01-08-13-43-34.png
... ...
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mechanics-dat/mechanical-structure-dat/chain-dat/2026-01-08-13-45-31.png
... ...
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mechanics-dat/mechanical-structure-dat/chain-dat/chain-dat.md
... ...
@@ -0,0 +1,57 @@
1
+# chain-dat
2
+
3
+![](2026-01-08-13-43-34.png)
4
+
5
+
6
+## chain gear Sprocket
7
+
8
+![](2026-01-08-13-45-31.png)
9
+
10
+
11
+## main specs
12
+
13
+- 06B
14
+- 08B
15
+
16
+
17
+## specs
18
+
19
+### 1. Chain — Main Parameters
20
+
21
+| Parameter | Description | Unit / Example |
22
+| --- | --- | --- |
23
+| Pitch (p) | Distance between adjacent roller centers | mm (e.g., 12.7, 15.875) |
24
+| Roller Diameter (d₁) | Roller outer diameter | mm |
25
+| Inner Width (b₁) | Inner width between chain plates (sprocket tooth fit) | mm |
26
+| Chain Length | Total number of links × pitch | mm |
27
+| Plate Thickness | Determines load capacity | mm |
28
+| Tensile Strength / Rated Load | Maximum allowable tension the chain can carry | N or kN |
29
+| Type / Series | Standard or series (ANSI, ISO, DIN, light/medium/heavy) | e.g., ANSI 40, DIN 08B-1 |
30
+
31
+> ⚠️ Pitch is the most critical parameter. The chain and sprocket must have the same pitch to mesh correctly.
32
+
33
+### 2. Sprocket — Main Parameters
34
+
35
+| Parameter | Description | Unit / Example |
36
+| --- | --- | --- |
37
+| Number of Teeth (z) | Sprocket tooth count; determines gear ratio | 10–120 teeth |
38
+| Pitch (p) | Must match the chain pitch | mm |
39
+| Tooth Profile Standard | Defines the tooth shape for proper engagement | ANSI, ISO, DIN |
40
+| Outside Diameter (OD) | Useful for layout and clearance calculations | mm |
41
+| Mounting Bore / Pin Hole Diameter | Sprocket mounting for shaft or bolts | mm |
42
+| Thickness / Tooth Width | Must be compatible with chain inner width | mm |
43
+| Material / Strength | Determines wear resistance and load capacity | Steel, cast iron, aluminum alloy |
44
+
45
+> ⚠️ Tooth count and sprocket diameter set the drive ratio but do not affect mesh compatibility as long as the pitch is the same.
46
+
47
+### 3. Key Fit and Selection Points
48
+
49
+- Pitch match: The chain pitch must match the sprocket pitch exactly.
50
+- Inner width: Sprocket tooth width must be less than or equal to the chain inner width.
51
+- Profile standard: Chain and sprocket standards (ANSI, ISO, etc.) must match to avoid poor engagement and premature wear.
52
+- Minimum sprocket tooth count: Too few teeth increases bending fatigue on the chain; typically choose ≥ 12 teeth when possible.
53
+- Mounting alignment: Shaft diameter, keyway, and bolt pattern must match the sprocket mounting method.
54
+
55
+## ref
56
+
57
+- [[power-transmission-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/motion-system-dat/motion-system-dat.md
... ...
@@ -1,15 +0,0 @@
1
-
2
-# motion-system-dat
3
-
4
-
5
-
6
-
7
-
8
-- [[bearing-dat]]
9
-
10
-- [[belt-dat]] - [[belt-sys-dat]]
11
-
12
-- [[shaft-dat]] - [[shaft-coupler-dat]]
13
-
14
-- [[timing-pulley-dat]] - [[idler-dat]]
15
-