SY BL634 Leaf Chain Pin Link, 3 x 4 Lacing, 3/4 in Pitch
Available
SY pin links for BL Series leaf chain, in the same pitch and lacing as the chain. Each size here is matched to the SY leaf chain of the same number.
Made in Japan by Sugiyama Chain Co., Ltd. Supplied individually. This listing covers 26 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
- Replacement pin link for leaf chain
- 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 | Pin link |
| Chain sizes | BL466 to BL1688 (26) |
| Pitch | 1/2 in to 2 in (12.7 to 50.8 mm) |
| Country of origin | Japan |
Available sizes
Show all 26 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 |
| 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
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 connecting links: SY BL Series Leaf Chain Connecting Link BL466-BL1688.
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SY BL Series Leaf Chain Pin Link BL466-BL1688: BL634
SKU: A0158806 | Model: BL634-PL/SY
SY BL634 leaf chain pin link, 3/4 in pitch. Made in Japan by Sugiyama.