40mm Square Stub Axle 40mm square stub axle LM or otherwise known as a standard profile. The axle length is measured from tip to tip. The stub axle is supplied with a nut, washer, and split pin. Welding a 40mm Square Stub into a 50mm tube with 5mm walls makes a good farm trailer. Select from an electric or marine turn. An electric turn suits both electric and hydraulic backing plates, while a marine turn suits marine or unbraked axles. Hollow Axles Hollow axles are rated the same as solid solids up to 1600kg. How to install a stub into a hollow tube Cut the tube to length, including the stub measurement. Drill a hole no smaller than 12mm on all 4 sides. Mark the 50mm tube 25mm back from the end of the stub when inserted. Insert the stub weld into place. Weld the stub holes to secure the end of the stub into the tube. Finally, the hollow axle stub must protrude past the springs and u-bolts once affixed into position. LM Bearing Sizes are Inner LM Bearing Sizes ID 31.75mm OD 59.10mm Outer LM Bearing Sizes ID 19.05mm OD 45.20mm LM Seal ID 37.5mm OD 59.10mm Dust Cap 45.20mm Rated to 500kg per Stub or 1000kg per pair. Dimensions Tip to Shoulder, including thread 115mm Square part 135mm