Steel Flanged Shoulder Pin for Automotive Manufacturer

Product Description:

We are Qimao Metal Manufacturer, a factory specializing in cold-headed products, with our primary focus being Steel Flanged Shoulder Pin for Automotive Manufacturer, then finish-turn the critical diameters to hold tolerances you can actually trust. The shoulder step is designed to carry axial loads while the cylindrical body handles radial forces, which means you get two functions in one part. We case-harden the wear zones—typically 0.8 to 1.2 mm deep—so the bushing resists brinelling from shock loads without turning brittle through the core. The flange face gets a flatness within 0.02 mm, because we know that any wobble there translates directly into uneven tire wear or sloppy steering feedback. If you spec stainless, we use 303 or 316 grade for corrosion resistance. If carbon steel is your choice, we can supply as-rolled or with a zinc phosphate coating for light rust protection. The bore is honed to a 0.4 µm RA finish, which plays nice with greased pins and reduces friction enough that field guys notice the difference during reassembly. We check every single part on a digital height gauge and air gauge before packaging—no spot checks, no shortcuts.

Specification:

Products Details:

Qimao Metal Manufacturer Steel Flanged Shoulder Pin for Automotive Manufacturer, the material options: 1045 carbon for general use, 4140 for higher strength, or 303/316 stainless where moisture is a concern. Hardness sits at HRC 22–28 as-annealed, with bearing journals pushed to HRC 52–56 after induction hardening. Outer diameters run 16–80 mm, shoulders up to 120 mm, lengths 20–100 mm—longer if you need it. Threads aren’t standard on this style, though we can machine an internal puller hole if your design asks for it. Finishes range from plain machined to phosphate, zinc plating, or passivation for stainless grades. We pack each bushing individually in wax paper with corrugated dividers between layers, so flange faces stay protected and scratch-free during shipping. No corners cut.

Product Feature:

• The Steel Flanged Shoulder Pin for Automotive Manufacturer provides a built-in depth stop, eliminating guesswork during press-fit and preventing over-insertion.

• Shoulder step carries thrust loads, so the bushing does double duty—radial bearing plus thrust washer.

• Case-hardened bearing surfaces resist indentation from high shock loads, especially on uneven road surfaces.

• Honed bore finish under 0.4 µm RA reduces friction, which means lower operating temperatures and less pin wear.

• Available in carbon steel (economical) or stainless (corrosion-proof)—you choose based on the environment.

Product Application:

• Lower and upper control arm pivot points on light trucks and passenger cars—where the Steel Flanged Shoulder Pin for Automotive Manufacturer sees both radial and axial loads.

• Stabilizer bar link mounts—replacing plastic or sintered bushings that wear out after two seasons of salt and gravel.

• Steering knuckle kingpin bores—especially on older solid-axle vehicles where precision shoulder positioning affects toe-in.

• Leaf spring eye bushings on heavy-duty pickup rear axles—flange keeps the bushing from walking sideways under lateral loads.

• Agricultural implement pivots like planter row units or disc harrow gangs—where dirt and moisture make stainless the smart choice.

• Custom linkage assemblies for off-road and utility vehicles—anywhere a bolted joint needs a wearable, replaceable bearing surface.