740 mm crank with 19 mm universal joint for trailer screw jack
22,90 €
740 mm crank with 19 mm universal joint for trailer screw jack
22,90 €
Shipping price from: 6,90 €
Product Produkt lagernd
740 mm crank with 19 mm universal joint for trailer screw jack
Product.Nr.: 990017664
- 740 mm crank rod for comfortable operation of screw jacks
- Integrated 19 mm universal joint adapter for flexible power transmission
- Robust design made of steel with a grippy PP (plastic) section
- Ideal as a replacement or retrofit for trailer support legs
This 740 mm crank is designed for manually winding screw jacks in and out on trailers, caravans or transport platforms. Thanks to the integrated 19 mm universal joint adapter, the crank can be engaged safely even when access to the jack is not perfectly straight.
A universal joint (also called a joint adapter) is a movable joint that transmits rotational movement despite angular misalignment. This makes operation easier in tight installation situations, e.g. with low-mounted support legs or limited freedom of movement.
The combination of steel for stability and PP (polypropylene) for more comfortable handling makes the crank durable and practical - ideal for the workshop, yard and on the go.
Technical data
- Material: Steel + PP (polypropylene)
- Length: 740 mm
- Dimensions: 74 x 15.5 cm
- Joint adapter: 19 mm, integrated (universal joint)
- Dimensions (unpacked, L x W x H): 725 x 165 x 40 mm
Applications
- Screw jacks on trailers and caravan applications
- Replacement crank for worn or lost crank rods
- Retrofit for easier cranking with angular misalignment
Frequently asked questions about this product
Three factors are key:
- Tube diameter — measured on the support wheel’s tube, not on the bracket. Common sizes are 35, 48 and 60 mm. It’s best to check with a calliper: a 48 mm support wheel won’t fit into a 60 mm bracket.
- Load capacity — this must match your trailer’s tongue load. A support wheel that is not strong enough will bend or become impossible to crank under load.
- Design — automatic jockey wheels fold in automatically when the trailer is coupled; basic models are cranked up by hand and locked into place.
Go straight to the right size: 48 mm jockey wheels, 60 mm jockey wheels or the full overview.
Common mistakes: ordering the wrong tube diameter; failing to crank the jockey wheel fully up or lock it in place before setting off; the clamp being too loose. A jockey wheel that spins freely can quickly cause damage on the motorway.
When it’s worth replacing: a worn-out wheel, a stiff crank, or a worn-out spindle. In most cases, a complete training wheel is cheaper than buying the parts separately.
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.
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ZIP Code: 1724 BG
City: Oudkarspel
Country: NL
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