Quick Summary
The RiaYer 50mm Ball Bearing Single Pulley Block with Swivel Shackle is a single pulley block with a 50 mm sheave and a 1-pack configuration. It is presented as a block with ball bearing action and a swivel shackle, so the main buying checks are the load limits, the exact line fit, and whether the swivel configuration matches the job.
For buyers comparing pulley blocks, the stated WLL, breaking load, sheave size, and groove width are the most important details to confirm before choosing an offer.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | RiaYer. Useful for identifying the exact product. |
| Product type | Single pulley block with swivel shackle. This is the main type to compare against your intended rigging setup. |
| Pack quantity | 1-pack. Confirm this matches the quantity you need. |
| Sheave diameter | 50 mm. Compare this with the line size and space available in your setup. |
| Groove width | 1/2 in (12 mm). Check that your line fits the groove specification. |
| Working load limit | 800 lbs (360 kg). This is a key limit to compare with your intended load. |
| Breaking load | 3100 lbs (1406 kg). This is a separate load figure from the working limit. |
| Sheave material | PA66 (Reinforced Nylon). Material choice may matter for the application and environment. |
| Shackle and frame material | T316 stainless steel. Important for buyers comparing the block’s construction. |
What to Compare Before Buying
- Load limit: The stated working load limit is 800 lbs (360 kg). Compare that number with the load you plan to place on the block.
- Breaking load: The stated breaking load is 3100 lbs (1406 kg). This is a separate figure from the working limit and should not be treated as the everyday load rating.
- Line size: The groove width is listed as 1/2 in (12 mm). Check that your rope or line matches the groove.
- Sheave size: The 50 mm sheave is a useful check if your rigging has tight spacing or a size match requirement.
- Pack quantity: This is a 1-pack. Make sure one block is enough for your setup.
Choosing the Correct Version
This version combines a 50 mm sheave, a single pulley block design, and a swivel shackle. If you need a different sheave size, a different quantity, or a different shackle setup, compare those fields closely before choosing an offer.
Before You Decide
Confirm the 50 mm sheave, 1-pack quantity, and 800 lbs working load limit against your setup. Also check that the 1/2 in (12 mm) groove width matches your line and that the swivel shackle layout suits the way you plan to rig it.
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