Assembly Equipment

Mechanical ToolsHydraulic ToolsInduction Heaters Why is proper assembly and disassembly important? A large percentage of bearing problems arise due to poor assembly techniques. Bearings are a crucial component in moving machinery, and careful handling is necessary to ensure they perform to their ful... l potential. They need to be correctly fitted to both the shaft and the housing. When installing a bearing, it is essential to apply the required force in the correct place or use proper heating components. Failure to pay attention to these aspects can result in damage to the bearing during the assembly or disassembly process. This damage can vary from nicks in the bearing raceways to seal deformation or even cracking of the bearing rings. Similarly, improper removal of the bearing can result in costly damage to both the bearing and surrounding components, which may lead to problems during future installations. Regardless of the type of damage, the inability of the bearing to perform as intended throughout its expected service life can cause premature machine failure and high maintenance costs. NSK offers specialized tools to ensure bearings can be installed and removed without damage. This is complemented by NSK training courses that teach best practices for tool use, helping engineers develop safe and efficient assembly procedures. Interference Fits For most bearings, either the inner or outer ring (or both in some cases) is fitted to the shaft or housing with an interference fit. Incorrect Assembly When assembling a roller bearing using cold installation, always ensure that the assembly forces are applied to the ring with the interference fit. Assembly forces should never pass through the rolling elements. Applying force to the wrong bearing ring can damage the raceway. Correct Assembly The risk of raceway damage can be minimized using specially designed NSK assembly tools. The right tools can help prevent raceway damage. Assembly Tool FTN333 Small and medium-sized bearings are generally cold-mounted. NSK’s assembly kit ensures that the installation is carried out efficiently and without damage. Suitable for a wide range of bearing sizes Impact rings are made from extremely durable material Bearing Puller Kit BPN62 The puller kit can remove stationary ball bearings from both shafts and housings without damaging surrounding components. Easy removal of bearings from blind housings Includes 6 sets of puller arms and 2 spindles Puller arms are made from high-quality steel NSK Hook Spanners Specifically designed for tightening and removing locknuts in tapered bore and sleeve assemblies. Available in both standard and high-strength models. Suitable for shafts, tapered and adapter sleeves Designed with wide heads to withstand heavy loads and impacts Hydraulic Pullers, Pushers, and Press Plates For high loads, achieving the recommended fit between the bearing and the mounting surface is crucial. NSK's hydraulic pushers, pullers, and press plates are ideal for this task. Hydraulic Nuts For large bearings mounted on shafts or sleeves, a hydraulic nut is ideal for applying more force gradually and parallel to the shaft. NSK hydraulic nuts come with a patented axial drive-up pin to simplify installation. Includes crank handles, jack bolts, and wrenches. Hydraulic nuts are coated with Armaloy to form a rust-resistant layer, making them stronger and more durable. Hydraulic Pumps NSK’s hydraulic pumps can be used with hydraulic nuts or for the oil galleries designed for removing bearings from tapered shafts. Available in two sizes depending on the required capacity. Pump kit contents: pump, hose, quick release coupling, gauge, T-fitting, extra oil, and metal case. NSK Bearing Heaters NSK bearing heaters are designed to safely and efficiently heat bearings to the optimum temperature for hot-mounting, using specially designed induction coils. NSK offers three types of heaters: Portable, compact, and lightweight (3.5 kg), with a 10 kg capacity and 1.5KVA power. Small, space-saving, quiet operation with modern design. No support yoke required—just place the workpiece on the device. Heaters available for workpieces weighing between 80 kg and 300 kg, operating 1.5 to 2 times faster. Supplied with support yokes for different sizes of bearings in the main unit. Floor-mounted models available for workpieces up to 1200 kg. Convenient design with sliding arm, easy to use with large bearings up to 1.2 meters in diameter. Programmable control unit at a comfortable working height for easy operation. Read more