SY BL466 Leaf Chain, 6 x 6 Lacing, 1/2 in Pitch, 10 ft Box
Available
SY BL Series leaf chain from Sugiyama Chain Co., Ltd. BL leaf chain uses link plates of the next larger pitch size of Sugiyama standard roller chain, for heavier duty.
Made in Japan by Sugiyama Chain Co., Ltd. Supplied in boxed lengths of 10 ft (3.05 m). This listing covers 27 sizes (BL466 to BL1688), and the table below carries the dimensions we hold on file, plus Sugiyama's published figures wherever they exist.
Where this product is used
- Lifting mechanisms with medium loads and some shock
- Mast, hoist and counterbalance arrangements
Features
- Link plates one pitch size larger than standard roller chain of the same pitch
- Chiefly for medium loads with greater shock
- Made in Japan by Sugiyama Chain Co., Ltd
- Supplied in boxed lengths of 10 ft (3.05 m)
Key specifications
| Specification | Detail |
|---|---|
| Brand | SY (Sugiyama Chain Co., Ltd) |
| Series | BL Series leaf chain |
| Component | Chain |
| Chain sizes | BL466 to BL1688 (27) |
| Pitch | 1/2 in to 2 in (12.7 to 50.8 mm) |
| Supplied as | Boxed lengths of 10 ft (3.05 m) |
| Country of origin | Japan |
Available sizes
Show all 27 sizes
| Chain | Lacing | Pitch (mm) | Pin dia (mm) | Plate H (mm) | Plate T (mm) | Tensile (kN) | Allowable (kN) | kg/m |
|---|---|---|---|---|---|---|---|---|
| BL466 | 6 x 6 | 12.7 | 5.08 | 11.7 | 2 | 82.5 | 1.89 | |
| BL534 | 3 x 4 | 15.88 | 5.95 | 14.6 | 2.4 | 64 | 1.61 | |
| BL544 | 4 x 4 | 15.88 | 5.95 | 14.6 | 2.4 | 85.3 | 1.8 | |
| BL566 | 6 x 6 | 15.88 | 5.95 | 14.6 | 2.4 | 127 | 2.65 | |
| BL623 | 2 x 3 | 19.05 | 7.93 | 17.5 | 3.2 | 70.6 | 1.89 | |
| BL634 | 3 x 4 | 19.05 | 7.93 | 17.5 | 3.2 | 106 | 2.68 | |
| BL644 | 4 x 4 | 19.05 | 7.93 | 17.5 | 3.2 | 141 | 3.04 | |
| BL646 | 4 x 6 | 19.05 | 7.93 | 17.5 | 3.2 | 141 | 4.15 | |
| BL666 | 6 x 6 | 19.05 | 7.93 | 17.5 | 3.2 | 212 | 4.58 | |
| BL822 | 2 x 2 | 25.4 | 9.53 | 24.1 | 4 | 114 | 2.57 | |
| BL823 | 2 x 3 | 25.4 | 9.53 | 24.1 | 4 | 114 | 3.17 | |
| BL834 | 3 x 4 | 25.4 | 9.53 | 24.1 | 4 | 172 | 4.37 | |
| BL844 | 4 x 4 | 25.4 | 9.53 | 24.1 | 4 | 228 | 4.95 | |
| BL846 | 4 x 6 | 25.4 | 9.53 | 24.1 | 4 | 228 | 6.23 | |
| BL866 | 6 x 6 | 25.4 | 9.53 | 24.1 | 4 | 342 | 7.44 | |
| BL1034 | 3 x 4 | 31.75 | 11.1 | 29.3 | 4.8 | 236 | 6.5 | |
| BL1044 | 4 x 4 | 31.75 | 11.1 | 29.3 | 4.8 | 314 | 7.41 | |
| BL1046 | 4 x 6 | 31.75 | 11.1 | 29.3 | 4.8 | 314 | 9.21 | |
| BL1066 | 6 x 6 | 31.75 | 11.1 | 29.3 | 4.8 | 471 | 11.07 | |
| BL1234 | 3 x 4 | 38.1 | 12.7 | 35.1 | 5.6 | 311 | 9.05 | |
| BL1244 | 4 x 4 | 38.1 | 12.7 | 35.1 | 5.6 | 414 | 10.27 | |
| BL1246 | 4 x 6 | 38.1 | 12.7 | 35.1 | 5.6 | 414 | 11.86 | |
| BL1266 | 6 x 6 | 38.1 | 12.7 | 35.1 | 5.6 | 621 | 14.4 | |
| BL1466 | 6 x 6 | 44.45 | 14.28 | 40.9 | 6.4 | 810 | 22.33 | |
| BL1644 | 4 x 4 | 50.8 | 17.45 | 46.7 | 7.2 | 724 | 18.85 | |
| BL1666 | 6 x 6 | 50.8 | 17.45 | 46.7 | 7.2 | 1086 | 28.54 | |
| 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
Tensile strength is the load at which the chain breaks in a single pull and is not a working load. Sugiyama's rule of thumb is to never load roller chain above 50% of its ultimate tensile strength, even for one cycle, and to apply the multiple-strand factor to multiple-strand chain.
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 connecting links: SY BL Series Leaf Chain Connecting Link BL466-BL1688. Matching pin links: SY BL Series Leaf Chain Pin Link BL466-BL1688.
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SY BL Series Leaf Chain BL466-BL1688, 10 ft Box: BL466
SKU: A0158747 | Model: BL466/SY
SY BL466 leaf chain, 1/2 in pitch, 82.5 kN average tensile strength, 10 ft box. Made in Japan by Sugiyama.