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建议弯曲半径

Discover the recommended bend radius and minimum pulley sizes for wire rope in our comprehensive guide. Get expert advice and technical information.

To obtain reasonable life from your rope, you must choose the proper diameter rope for your application. In general, the larger the size of the drum or pulley with respect to the wire diameter, the longer the service life. 

The tables below provide the minimum recommended pulley diameter. The bend radius of the rope is approximately half of the minimum recommended pulley tread diameter. We do not publish the bend radius for 1×7 or 1×19 constructions as they are most often used in push-pull applications instead of being used just for pulling, as the constructions below are.

Use the link below to download a PDF of our recommended wire rope bend radius guide.

Rope Constructions
3×7, 6×7, 6×42, 7×3, and 7×7

Rope DiameterMinimum Recommended Pulley Tread DiameterApproximate Bend Radius
0.009″3/8″3/16″
0.014″5/8″5/16″
0.018″13/16″13/32″
0.024″1″1/2″
0.027″1 5/32″37/64″
0.030″1 9/32″41/64″
0.031″1 5/16″21/32″
0.032″1 11/32″43/64″
0.035″1 1/2″3/4″
0.036″1 17/32″49/64″
0.047″2″1″
0.063″2 5/8″1 5/16″
0.075″3 9/32″1 41/64″
0.094″3 15/16″1 31/32″
0.125″5 1/4″2 5/8″
0.156″6 9/16″3 9/32″
0.188″7 7/8″3 15/16″
0.250″10 1/2″5 1/4″
0.313″13 1/8″6 9/16″
0.375″15 3/4″7 7/8″

Rope Constructions
6×19, 7×19, and 19×7

Rope DiameterMinimum Recommended Pulley Tread DiameterApproximate Bend Radius
0.024″19/32″19/64″
0.027″21/32″21/64″
0.032″25/32″25/64″
0.036″7/8″7/16″
0.038″15/16″15/32″
0.047″1 1/8″9/16″
0.063″1 1/2″3/4″
0.094″2 1/4″1 1/8″
0.125″3″1 1/2″
0.156″3 3/4″1 7/8″
0.187″4 1/2″2 1/4″
0.219″5 1/4″2 5/8″
0.250″6″3″
0.313″7 1/2″3 3/4″
0.375″9″4 1/2″
0.438″10 1/2″5 1/4″
0.500″12″6″
0.563″13 1/2″6 3/4″
0.625″15″7 1/2″

Rope Constructions
6×37 and 8×19

Rope DiameterMinimum Recommended Pulley Tread DiameterApproximate Bend Radius
0.188″2 1/4″1 1/8″
0.250″3″1 1/2″
0.313″3 3/4″1 7/8″
0.375″4 1/2″2 1/4″
0.438″5 1/4″2 5/8″
0.500″6″3″
0.563″6 3/4″3 3/8″
0.625″7 1/2″3 3/4″

Don’t see what you’re looking for here? 联系我们 today and one of our wire rope experts will help you determine your specific bend radius, or any other technical information you may need.

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