NTN AH 24056H withdrawal sleeve

NTN AH 24056H belongs to withdrawal sleeve, part of our Bushings and sleeves range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for AH 24056H and any equivalents.

A withdrawal sleeve sits between a cylindrical shaft and a bearing with a tapered bore, letting you mount the bearing and set radial clearance with a lock nut. MR Industrial Accessories LLC supplies the NTN AH series, with each size matched to a bearing bore through the part number. It suits equipment where mounting must be precise and dismounting must not damage the bearing.

Reading the AH code tells you what you are holding. AH identifies the withdrawal sleeve, the digits that follow give the bearing series number, and the final two digits multiplied by 5 give the bearing bore in millimeters. Take AH 24044H: the bearing bore is 220 mm. AH 24048H fits a 240 mm bore, and AH 24056H fits a 280 mm bore. The H suffix means the sleeve carries a slot for the locking tab. In the same way, AH 24144H, AH 24148H and AH 24152H correspond to bearing bores of 220, 240 and 260 mm.

These sleeves appear across metallurgy, cement, mining and paper operations. Grinding equipment, conveyor belts, centrifugal pumps and speed reducers all rely on them. Their job is to make mounting and dismounting practical on shafts that call for an interference fit, without a hydraulic press, and in positions where the bearing comes off regularly for maintenance.

Selection starts with the shaft diameter and the bearing with a tapered bore you plan to mount. Confirm that the thread and the sleeve length match the bearing. Before mounting, clean and lubricate the contact surfaces, then tighten the lock nut with the correct wrench until you reach the recommended radial clearance. The slot for the locking tab has to line up with the slot on the shaft so the sleeve cannot rotate. Poor mounting can damage the bearing and shorten its service life.

NTN AH series withdrawal sleeves interchange with other brands that use the same standardized designation. Send us a part number from another brand and we will identify the equivalent reference. Check the critical dimensions, such as shaft diameter and thread, since tolerances are not identical across every brand. Our technical team can confirm the match before you order.

For a withdrawal sleeve for your application, message us on WhatsApp or by email with the part number or the size you need. MR Industrial Accessories LLC quotes the exact reference and helps you get the mounting right.