Guizhou GZG Transmission Co., Limited is one of the leading manufacturers and suppliers of sp series high strength short pitch chains in China, featured by quality products and good price. If you're going to buy durable sp series high strength short pitch chains made in China, welcome to get free sample from our factory. We also accept customized orders.
SP Series High Strength Short Pitch Chains
Difference between heavy duty and SP series chains
Many transmission buyers look for upgraded roller chains when standard heavy-duty types reach their load limits. The SP series short pitch chain is built as an enhanced alternative to regular heavy-duty roller chains, refined for applications that demand higher breaking strength under continuous operation.
We can see clear parameter gaps by comparing 80H-1 and 80HSP-1 from the specification table. Both share the same pitch of 25.40 mm, roller diameter and inner plate width, so they fit the same matching sprockets without modification. Where they differ lies in pin dimension, ultimate tensile load and unit weight.
80HSP-1 reaches a minimum tensile strength of 89.2 kN, far above the 56.7 kN of the common 80H-1 model. Its average tensile strength also rises to 98.1 kN, with a slightly higher weight per meter at 3.36 kg/m.
These adjusted specs tell a practical story for end users. The upgraded SP chain can sustain heavier shock loads and longer running hours. It works well for agricultural machinery, conveyor drives and other industrial equipment where overload risk often shortens chain service life. While it shares interchangeable mounting dimensions with the original heavy-duty chain, users should check power requirements before switching to decide if the higher load rating fits their working conditions.
Chain No. |
Pitch | Roller diameter |
Width between inner plates |
Pin diameter |
Pin length |
Inner plate depth |
Plate thickness |
Tensile strength |
Average tensile strength |
Weight per meter |
|
| P | d1 max |
b1 min |
d2 max |
L max |
Lc max |
h2 max |
T max |
Q min |
Q0 | q | |
| m m | m m | m m | m m | m m | m m | m m | m m | kN/lbf | kN | kg/m | |
| 80H-1 | 25.40 | 15.88 | 15.75 | 7.92 | 36.2 | 37.7 | 24.0 | 4.0 | 56.7/12886 | 71.4 | 3.10 |
| 80HSP-1 | 25.40 | 15.88 | 15.75 | 7.94 | 36.2 | 38.9 | 24.1 | 4.0 | 89.2/20066 | 98.1 | 3.36 |
If you need help reviewing load requirements or verifying dimension parameters for your transmission setup, feel free to reach out to us.
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