SY BL1234 Leaf Chain Connecting Link, 3 x 4 Lacing, 1-1/2 in Pitch
Available
SY connecting links join the ends of a length of leaf chain into a continuous loop. Each size here is matched to the SY chain of the same number, so select the link with the same chain number, strand count and series as your chain. This page covers the SY BL Series Leaf Chain Connecting Link BL466-BL1688, available in 27 chain number options: BL466, BL534, BL544, BL566, BL623, BL634, BL644, BL646 and 19 more.
Made in Japan by Sugiyama Chain Co., Ltd. Supplied individually. This listing covers 27 sizes (BL466 to BL1688). BL leaf chain uses link plates of the next larger pitch size of Sugiyama standard roller chain, for heavier duty.
Where this product is used
- Lifting mechanisms with medium loads and some shock
- Mast, hoist and counterbalance arrangements
Features
- Matched to the SY chain of the same number and series
- Joins the chain ends into a continuous loop
- Made in Japan by Sugiyama Chain Co., Ltd
- Supplied individually
Key specifications
| Specification | Detail |
|---|---|
| Brand | SY (Sugiyama Chain Co., Ltd) |
| Series | BL Series leaf chain |
| Component | Connecting link |
| Chain sizes | BL466 to BL1688 (27) |
| Pitch | 1/2 in to 2 in (12.7 to 50.8 mm) |
| Country of origin | Japan |
Available sizes
Show all 27 sizes
| Link | Lacing | Pitch (mm) | Pin dia (mm) | Plate H (mm) | Plate T (mm) |
|---|---|---|---|---|---|
| BL466 | 6 x 6 | 12.7 | 5.08 | 11.7 | 2 |
| BL534 | 3 x 4 | 15.88 | 5.95 | 14.6 | 2.4 |
| BL544 | 4 x 4 | 15.88 | 5.95 | 14.6 | 2.4 |
| BL566 | 6 x 6 | 15.88 | 5.95 | 14.6 | 2.4 |
| BL623 | 2 x 3 | 19.05 | 7.93 | 17.5 | 3.2 |
| BL634 | 3 x 4 | 19.05 | 7.93 | 17.5 | 3.2 |
| BL644 | 4 x 4 | 19.05 | 7.93 | 17.5 | 3.2 |
| BL646 | 4 x 6 | 19.05 | 7.93 | 17.5 | 3.2 |
| BL666 | 6 x 6 | 19.05 | 7.93 | 17.5 | 3.2 |
| BL822 | 2 x 2 | 25.4 | 9.53 | 24.1 | 4 |
| BL823 | 2 x 3 | 25.4 | 9.53 | 24.1 | 4 |
| BL834 | 3 x 4 | 25.4 | 9.53 | 24.1 | 4 |
| BL844 | 4 x 4 | 25.4 | 9.53 | 24.1 | 4 |
| BL846 | 4 x 6 | 25.4 | 9.53 | 24.1 | 4 |
| BL866 | 6 x 6 | 25.4 | 9.53 | 24.1 | 4 |
| BL1034 | 3 x 4 | 31.75 | 11.1 | 29.3 | 4.8 |
| BL1044 | 4 x 4 | 31.75 | 11.1 | 29.3 | 4.8 |
| BL1046 | 4 x 6 | 31.75 | 11.1 | 29.3 | 4.8 |
| BL1066 | 6 x 6 | 31.75 | 11.1 | 29.3 | 4.8 |
| BL1234 | 3 x 4 | 38.1 | 12.7 | 35.1 | 5.6 |
| BL1244 | 4 x 4 | 38.1 | 12.7 | 35.1 | 5.6 |
| BL1246 | 4 x 6 | 38.1 | 12.7 | 35.1 | 5.6 |
| BL1266 | 6 x 6 | 38.1 | 12.7 | 35.1 | 5.6 |
| BL1466 | 6 x 6 | 44.45 | 14.28 | 40.9 | 6.4 |
| BL1644 | 4 x 4 | 50.8 | 17.45 | 46.7 | 7.2 |
| BL1666 | 6 x 6 | 50.8 | 17.45 | 46.7 | 7.2 |
| BL1688 | 50.8 |
Selecting the right option
BL leaf chain uses the next larger pitch size of plate, for medium loads with more shock. Match pitch and lacing to your sheaves and anchor.
In Sugiyama's leaf chain numbers the leading digits give the pitch (in eighths of an inch) and the last two digits give the lacing, for example BL466 is 1/2 in pitch with 6 x 6 lacing.
Fitting and use
Fit the retaining clip or pin the way Sugiyama shows: spring clips go on with the closed end pointing the direction the chain runs, cotter pin prongs are opened to a 60 degree angle, and cotter pins must not be re-used. Use the clip or pin supplied with the link.
Chain drives should be guarded. Lock out machine power before removing, installing or servicing chain, wear eye protection when driving or grinding pins, avoid welding or plating assembled chain, and never repair damaged chain by replacing only some of its parts.
Related products
Matching chain: SY BL Series Leaf Chain BL466-BL1688, 10 ft Box. Matching pin links: SY BL Series Leaf Chain Pin Link BL466-BL1688.
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SY BL Series Leaf Chain Connecting Link BL466-BL1688: BL1234
SKU: A0158793 | Model: BL1234-CL/SY
SY BL1234 leaf chain connecting link, 1-1/2 in pitch. Made in Japan by Sugiyama.