Two buyers, two prices, one part number
The OEM buys in annual quantities against a bid, on scheduled delivery. The replacement buyer buys one unit, from a distributor, when a machine is down. They rarely meet, which is why two published prices for one part coexist without either being wrong.
Timken states it: it "collaborates with OEMs to improve equipment efficiency with its engineered products and captures subsequent equipment replacement cycles by selling largely through independent channels in the aftermarket." Its 2025 revenue table splits the year 60% OEM, 40% distribution and end users.2