Product Description:

The 4P3040.00-K29 comes from B & R Automation’s 4P Power Panels series and sits on the heavier side with a weight close to 3.1 kg. Built from solid steel, the component is treated with a nitride surface, giving it that extra edge in wear resistance. The Outside diameter lands at 126 mm, big enough for mid-sized assemblies. The Hub diameter clocks in at 56 mm, which keeps mounting steady when paired with standard flanges. No odd shapes or fancy profiles — just clean machining.

The Face width is 30 mm and doesn’t leave room for slop when aligned with gear trains or clamped units. The keyway width is 8 mm, with a depth of 3.3 mm, cut precisely to fit matching shafts without wiggle. The Bore diameter is 29 mm, pretty standard, and doesn’t require rework for most industrial shafts. The Hub length hits 40 mm, which helps stabilize the part when torque goes up. The tooth count hits 40, matched to a module of 3.0 and a pressure angle of 20° — not exotic specs, but effective for torque transmission and smoother load sharing across meshed teeth.

Nothing flashy in this model, but that’s kind of the point. It’s cut for endurance, not attention. Mostly ends up inside panels or machine internals where visibility doesn’t matter but performance does. The steel body holds up under cycles, and the nitriding helps it keep form when things heat up. The component slots right into systems built around the 4P format. Used in automation builds, motion assemblies, or powertrain units that need something sturdy in place, doing its job without needing to be babysat. Doesn’t chatter, doesn’t twist, doesn’t try to be fancy. Just locks in and works.