Knott ball coupling TYPE K 7,5-K up to 750kg 50mm square tube towing hitch car trailer
33,90 €
Knott ball coupling TYPE K 7,5-K up to 750kg 50mm square tube towing hitch car trailer
33,90 €
Shipping price from: 6,90 €
Product Produkt lagernd
Knott ball coupling TYPE K 7,5-K up to 750kg 50mm square tube towing hitch car trailer
Product.Nr.: 990002820
- Coupling ball
- Manufacturer KNOTT
- Type K 7,5 Version L
- suitable for up to 750kg gross vehicle weight of the trailer
- perm. drawbar load 75kg
- for 50mm square tube drawbar
- 90mm hole spacing
- hole D = 12,5mm
- practical one-hand operation with integrated safety device in the handle
- wear indicator on the side
- material steel galvanized
- EG approval = e100-1040
Frequently asked questions about this product
Ball head on the towing vehicle: The new ball head has a diameter of 50 mm; the wear limit is 49 mm. Measure in several directions using a calliper — the ball wears down in an oval shape, and even a single point measuring less than 49 mm means it needs replacing.
Tow ball coupling on the trailer: Signs include noticeable play on the ball, rattling whilst driving, or a coupling that no longer engages properly. Many couplings have a wear indicator on the handle — if the pointer is in the red zone, it needs replacing.
Assess both together: a new coupling fitted to a worn-out ball will continue to rattle.
Lubrication: The ball and coupling wear out much faster if left dry. An important exception is anti-sway couplings: their friction linings must remain grease-free; in this case, only the ball is cleaned. Grease on the linings renders the anti-sway damping ineffective and ruins the linings.
A worn-out pair will be flagged during the annual general inspection. Replacement: Ball couplings and accessories.
Recommended accessories / spare parts
Last viewed
Reviews marked “Verified Purchase” are from customers who have bought the product from our shop. Reviews without this label may also be from consumers who have not purchased the products in question. These have not been verified for authenticity.
E-Mail adress: info@knott.de
Streetaddress: Gutenbergstraße 21
ZIP Code: 93128
City: Regenstauf
Country: DE
Phone: +49 (0)940293170
