Description
The 304 Stainless Steel Flat Key Pin (Rounded A Square Key) is a precision-engineered mechanical fastener designed to transmit torque securely between a rotating machine component and its shaft. Conforming to the GB1096 standard, this flat key pin ensures reliable performance, alignment, and long-lasting durability. Its rounded ends allow for smoother insertion and reduced stress concentrations during operation, making it an ideal choice for demanding mechanical applications. Manufactured from premium 304 stainless steel, this key pin offers excellent corrosion resistance, wear resistance, and structural stability - even in humid, corrosive, or high-temperature environments. This Flat Key Pin is an essential mechanical component in connecting shafts and rotating parts such as pulleys or gears, ensuring stable torque transfer without slippage or misalignment.
Features & Benefits
- Reliable Torque Transmission: Solid, precise key design, provides a positive mechanical drive that prevents slip between the shaft and rotating hub.
- Superior Corrosion Resistance: 304 stainless steel material, guarantees no rust in humid environments and strong oxidation resistance, ideal for demanding machinery.
- Reduced Stress Concentration: rounded A ends (GB 1096), the rounded profile aligns with a specific keyway design, reducing stress points and improving the fatigue life of the shaft/hub assembly.
- Durability & Strength: High hardness, solid and stable construction, Prevents deformation under high torque loads and wear, ensuring long-term joint integrity.
Specification
|
Width -S |
Height -h |
Width -S |
Height -h |
||||
|
Nominal |
Tolerance (h9) |
Nominal |
Tolerance (h11) |
Nominal |
Tolerance (h9) |
Nominal |
Tolerance (h11) |
|
2 |
0-0.25 |
2 |
0-0.06 |
25 |
0-0.025 |
14 |
0-0.11 |
|
3 |
3 |
28 |
16 |
||||
|
4 |
0-0.03 |
4 |
0-0.075 |
32 |
0-0.036 |
18 |
|
|
5 |
5 |
36 |
20 |
0-0.13 |
|||
|
6 |
6 |
40 |
22 |
||||
|
8 |
0-0.036 |
7 |
0-0.13 |
45 |
25 |
||
|
10 |
8 |
50 |
28 |
||||
|
12 |
0-0.043 |
8 |
56 |
0-0.043 |
32 |
0-0.16 |
|
|
14 |
9 |
63 |
32 |
||||
|
16 |
10 |
70 |
36 |
||||
|
18 |
11 |
0-0.11 |
80 |
40 |
|||
|
20 |
0-0.052 |
12 |
90 |
0-0.052 |
45 |
||
|
22 |
14 |
100 |
50 |
||||
FAQ
Q1: What is the function of a Flat Key Pin?
A Flat Key Pin locks a rotating component (like a gear or pulley) to a shaft, preventing slippage and enabling torque transmission.
Q2: What is the difference between GB1096 and other standards?
GB1096 defines dimensional tolerances for square and rectangular keys in China. It ensures interchangeability and compatibility with standardized keyways.
Q3: Can you provide custom sizes or materials?
Yes. We support OEM production with custom dimensions, materials (e.g., 316 SS, carbon steel), and surface finishes.
Q4: Are rounded ends better than flat ends?
Rounded ends allow easier assembly, reduce shaft stress, and prevent keyway damage—ideal for frequent disassembly applications.
