Did you know? Category winner Single Blocks

SPRENGER Block with U-Swivel / 12 mm / ball bearing

SVB item number: 45481 Manufacturer no.: 3525075255
View Ratings (8) Questions (0)
Made in Germany
SPRENGER Block with U-Swivel 12 mm ball bearing Image 1 of 1
Used on a Marieholms Bruk IF Boot
Used on a Sun Odyssey 34.2
Is in 2 shopping baskets right now, grab yours now!
Has been sold 3 times in the last 7 days
High-quality blocks with U-swivel. The smooth-running ball bearings, as well as the bearing shell and the balls are made of stainless steel. Product details
Recommended retail price: €45.40
only  €39.95
-12%
You save: €5.45
6 | in stock
pcs.
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Available variants

Block with U-Swivel / 1-sheave
Block with U-Swivel / 10 mm / ball bearing
Block with U-Swivel / 1-sheave
SPRENGER Block with U-Swivel / 1-sheave
€34.55
only €28.95
VAT inc., ex-works
To product
Block with U-Swivel / 10 mm / ball bearing
SPRENGER Block with U-Swivel / 10 mm / ball bearing
€37.15
only €33.95
VAT inc., ex-works
To product

At a glance!

Type of bearing: Ball bearing
Type of bearing: Ball bearing
Working load in kg: 250 kg
Working load in kg: 250 kg
Swivel
Swivel
Stainless steel V4A
Stainless steel V4A
Plastic
Plastic
by Hans J. D.
block as a fall deflection block We use 2 of these blocks as a fall deflection block and are completely satisfied, it does its job as it should and the price-performance ratio is right for us.
Read all product reviews
by Tim S.
Super quality shot roll
Read all product reviews
by Ove O.
Excellent block I bought the block in the shop in Kiel and am completely satisfied - I use it as a block for the jib sheet, where it does its job bravely.
Read all product reviews
by Antoine F.
Mast foot pulley great
Read all product reviews

Product data

  • SVB item number 45481
  • EAN 4022853151308
  • Manufacturer no. 3525075255
  • Description Block with U-Swivel / Ball Bearing
  • For rope Ø 12 mm
  • Number of sheaves 1
  • Type of bearing Ball bearing
  • Sheaves-Ø 50 mm
  • Breaking load 1000 kg
  • Working load in kg 250 kg
  • Ring No
  • Swivel Yes
  • Cleat No
  • Becket No
  • Material Stainless steel V4A, Plastic
  • Block application area Dynamic Loads

Product details

Advantages:
  • Ball bearing: Stainless steel
  • Bearing shell and balls: Stainless steel
  • Red point in stainless steel reinforcement tab
  • Wobble riveting: Prevents the rivet head from burring
  • Side panels made out of high-quality UV-resistant plastics
  • Light weight
  • Made in Germany
  • Excellent price-to-performance ratio


Cleaning and Maintenance of Blocks:

  • Rinse blocks regularly and thoroughly with warm fresh water to remove salt and dirt (carefully assist with a soft brush if necessary).
  • For heavier soiling: Soak the block in warm fresh water with a little dish soap and move the rollers (do not use harsh cleaners).
  • Avoid pressure washers, as water and dirt can be forced into the bearing.
  • Allow to dry thoroughly afterwards to prevent corrosion.
  • Lubricate only when necessary and according to the manufacturer's instructions.
    • Note: Many modern bearings are maintenance-free or self-lubricating – improper lubrication can impair their function.
  • Disassemble only if explicitly instructed by the manufacturer, as not all blocks are designed for maintenance or disassembly.

Product safety

Contacts

What other SVB customers have to say

100% real reviews

8 customer reviews

5 (out of 8 ratings)
5 Stars
(8)
4 Stars
(0)
3 Stars
(0)
2 Stars
(0)
1 Stars
(0)
100% recommend SVB
All reviews Latest ratings 5
Rainer K.
by Rainer K. Flag of Germany 5/13/2026 Verified purchase Variant: 45461
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Order
Everything was perfect.
Ove O.
by Ove O. Flag of Germany 7/30/2024 Variant: 45481
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Excellent block
I bought the block in the shop in Kiel and am completely satisfied - I use it as a block for the jib sheet, where it does its job bravely.
Emmanuel N.
by Emmanuel N. Flag of France 1/11/2024 Verified purchase Variant: 45473
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totally satisfied
Tim S.
by Tim S. Flag of Germany 8/22/2022 Verified purchase Variant: 45481
Translated automatically
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Super quality
shot roll
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Comparison

Image of Block with U-Swivel / 12 mm / ball bearing
SPRENGER
Block with U-Swivel / 12 mm / ball bearing
Image of Block with U-Swivel / 1-sheave
SPRENGER
Block with U-Swivel / 1-sheave
Image of Block with U-Swivel / 10 mm / ball bearing
SPRENGER
Block with U-Swivel / 10 mm / ball bearing
Availability / Price
only €39 95
VAT inc., ex-works
6 left in stock
only €28 95
VAT inc., ex-works
16 in stock
only €33 95
VAT inc., ex-works
16 in stock
Item no.
45481
45461
45473
Customer ratings
(8)
(8)
(9)
Description
Block with U-Swivel / Ball Bearing
Block with U-Swivel / Ball Bearing
Block with U-Swivel / Ball Bearing
Sheaves-Ø
50 mm
27 mm
35 mm
For rope Ø
12 mm
8 mm
10 mm
Number of sheaves
1
1
1
Type of bearing
Ball bearing
Ball bearing
Ball bearing
Ring
Swivel
Cleat
Working load in kg
250 kg
150 kg
212 kg
Breaking load
1000 kg
600 kg
850 kg
Becket
Material
Stainless steel V4A, Plastic
Stainless steel V4A, Plastic
Stainless steel V4A, Plastic
Block application area
Dynamic Loads
Dynamic Loads
Dynamic Loads

Did you know?

Image of Blocks: How to find the right block for your yacht
Blocks: How to find the right block for your yacht
What are the various block manufacturers and what is important when replacing them? Our SVB experts will tell you which block is right for your boat. Take a look at our guide to boat blocks.

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SPRENGER Block with U-Swivel / 12 mm / ball bearing
View Ratings (8) Questions (0)
€39.95
VAT inc., ex-works