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S-Block ball bearing 8 mm - 1 sheave, swivel

Item number: 3565070000

Highlights

bearing	Plastic ball bearing
Safety working load	150 kg

smooth running plastic ball bearing (red point = ball bearing)especially suitable for slightly veering
optimized rope guidance by specially formed cheek parts and continuous strap of stainless steel for more security and stability
wobble riveting avoids sharp burrs on the rivet head
marking of the maximum rope Ø in the enhancing strap
cheek of glass fibre reinforced polyamide (UV-resistant)
with removable becket

Description

Versatile 8 mm block with swivel.

The sturdy stainless steel tab shows the type of bearing used and the maximum rope thickness at a glance - a practical feature of all articles in the S-block series.

Further advantages at a glance:

optimal rope guidance due to curved side panels

side parts and pulley made of UV-resistant, glass-fibre reinforced plastic

dimensionally stable, continuous stainless steel strap for added stability and safety

indication of the type of bearing used and maximum rope thickness on the stainless steel tab

no sharp ridges on the rivet head thanks to tumble riveting

»Made in Germany« - manufactured in our own factory in Iserlohn, North Rhine-Westphalia

constant quality checks - before, during and after production

excellent price/performance ratio

Open catalog page

Technical data

More Information
Safety working load	150 kg
Weight	34 g
bearing	Plastic ball bearing
EAN	4022853191052

FAQ

When do I use ball bearing blocks?

Smooth-running ball bearing blocks are very suitable for all areas where lines have to be pulled through quickly and largely by hand. Examples are the single line reefing system or the deflection of sheets, as well as the lines used to haul and fly the traveller. Especially when there is little wind, trimming becomes much more sensitive. The use of ball bearings is a major advantage, especially on small boats, where most of the lines are run out of hand.

What is the meaning of the numbers on the blocks?

The numbers in the reinforcing straps indicate the maximum rope strength.

What advantages does the S-Block series have compared to the old series?

The S-Block series is a continuously improved version of the old series. The design has been revised; the recognition value is high.

The following points have been improved:

optimal chewing performance due to curved side parts
form stable continuous stainless steel flap for more stability and safety
max. Rope thickness and bearing type in the reinforcing tab
Wobble riveting prevents sharp burrs on rivet head
Side parts made of high-quality, glass fibre reinforced plastic (UV-resistant)
Compact design, low overall height
Also available in needle roller bearings

Why should I choose Sprenger fittings?

With Sprenger you have the fittings with the best price/performance ratio on the market. In tests conducted by the well-known magazines YACHT and SEGELN, Sprenger blocks were the test winners and achieved the highest scores. The working and breaking loads, the catalogue data in accordance with the actual values and the corrosion resistance were tested.
Perhaps you are familiar with the well-known sailor Wilfried Erdmann. He circumnavigated the earth in about 330 days in 1984. About 20 years later he repeated this one-handed circumnavigation, this time even against the prevailing wind directions. He not only used the same boat for both circumnavigations, but for the most part also the same Sprenger blocks. Is there any better proof of the durability and quality of Sprenger fittings?
But our fittings are not only popular with circumnavigators around the world. Sprenger products are also very popular with cruising and regatta sailors.