Mechanical

Directional load paths, paired arrangements, clearance and preload, with bounded NSK catalogue examples and rating definitions.

Recirculating-ball motion conversion, lead, preload, load ratings and the limits of catalog accuracy and stiffness.

Helical compression-spring geometry, force and rate, end contact, and the limits of a bounded catalog example.

Construction, load paths, installed clearance, rating-life meaning, and a bounded NTN 6205 catalog example.

Extension-spring initial tension, length datums, body and hook stresses, and a bounded catalog force calculation.

Normal and transverse tooth geometry, mesh forces, backlash, lubrication, and a bounded KHK ground-gear example.

Sliding screw-and-nut drives, lead and thread geometry, friction, load paths, wear, and application-dependent stability limits.

Recirculating rail-and-block guidance, directional loads, rating-distance conventions, preload and mounting accuracy, with a bounded THK SRG35R example.

Needle roller load paths, raceway construction, installation geometry, and conditional ratings illustrated by NTN HK2016F.

Elastomer sealing, compound identity, gland geometry and failure limits, illustrated by Parker 2-214 in N0674-70.

Sliding-bearing construction, projected pressure and p-v, counterface and clearance effects, with a bounded catalog example.

Radial lip seal construction, lubricant retention, shaft and housing interfaces, and bounded SKF dimensional examples.

Rigid and flexible shaft connections, torsional behavior, misalignment, hub interfaces, and a bounded ROTEX GS sizing example.

Involute tooth geometry, mesh compatibility, backlash, load paths and service limits, with a bounded module-2 example.

Cone and cup construction, opposed bearing arrangements, endplay and preload, mounting and lubrication, and the limits of fatigue-life calculations.

Synchronous belt geometry, profile compatibility, reinforcement, tension measurement, drive sizing, installation, and failure diagnosis.

Helical torsion-spring load paths, angular datums, bending stress, clearance effects, and a bounded Lee Spring example.

Belt profiles, length conventions, drive sizing, tension and replacement limits for friction-driven V-belt systems.

Worm and wheel geometry, mating constraints, thrust and efficiency, backdrivability, lubrication, assembly, and bounded ratio and heat-loss calculations.