00:00forging pressure heat treat black hard anodizing that's what it takes to turn this a plain bar of
00:06aluminum into this the active cooling wheel spacer on that land cruiser 300 eight steps every single
00:13one on camera let's go inside the bonos factory quick context before the tour because it explains
00:19every step you're about to see wheel spacers live a brutal life they carry the vehicle's weight
00:25absorb every pothole and sit inches from brakes that's why bonos starts with 6061 t6 aluminum the
00:34same alloy family used in aerospace fittings and forges it instead of casting every step from here
00:40exists for one reason strength you can verify not just claim step one billet cutting solid billets
00:47of 6061 t6 are sawed into precise slugs weight tolerance here decides consistency in everything
00:55downstream step two billet heating the slugs enter the furnace and soak until they hit exact
01:01forging temperature too cold the metal cracks under the press too hot the grain structure degrades
01:07the window is narrow and it's monitored not guessed step three the forge this is the moment that
01:14separates a bonos spacer from a cast one thousands of tons of pressure stamped the glowing slug into a
01:21blank that pressure forces the metal's grain to flow with the shape of the part like wood grain
01:27following a curve cast metal has random grain and microscopic air pockets forged grain is aligned
01:33dense and dramatically more impact resistant this is where stronger stops being a slogan and becomes
01:40physics step four trimming the press squeezes a thin ring of flash out around the blank a trimming die
01:47cuts it away cleanly step five piercing the center bore is pierced through ready for the precision work
01:53ahead step six the t6 heat treatment the machine spacers go into the heat treat furnace for solution
02:00treatment then quench then artificial aging this cycle is what locks the aluminum to its full t6 rated
02:07strength the temper stamped in the alloys name earned in this furnace skip or rush this step and you've got
02:14a
02:14soft part wearing a strong parts label step seven cnc machining where the forged blank becomes a
02:21precision part first rough turning establishes the profile and rough boards the center then a detail
02:27you'll only find on a bonos a knurling tool rolls that signature pattern straight into the outer edge
02:33grip for your hands during install and an anti-counterfeit fingerprint rolled in steel
02:38not printed on the bolt pattern is drilled six by 139.7 held the hundredths of a millimeter because
02:46a bolt pattern that's off by even a hair means vibration at 70 miles an hour the face is finished
02:52turned then the back the multi-level steps each machine to match your hub's exact profile and finally
02:59the mill cuts two signatures at once the pedal shaped active cooling fins that move air to your brakes
03:06and the removal notches around the edge so future you can get the spacer off without a fight and
03:12look at what comes off the machine long continuous ribbons of aluminum chips only look like this when
03:18the material is tough and ductile brittle metal shatters instead of ribboning this is the factory floor
03:24quietly proving the forging worked step eight black hard anodizing the armor first the spacers ride a
03:31conveyor through automatic sandblasting so the finish is uniform on every surface they're racked on
03:37conductive fixtures mounted so the contact points never touch a visible face a chemical etch strips every
03:44trace of oil and coolant because the oxide layer only forms on perfectly clean aluminum then the tank
03:51chilled acid electric current and the aluminum surface converts into a dense ceramic hard oxide hard
03:58anodizing the same class of coating used on military and aerospace hardware now the color the spacers go
04:05into a black dye bath dipped lifted dipped again this isn't paint sitting on top the dye is absorbed into
04:12the pores of the oxide layer and to lock it there forever a nickel acetate sealing bath closes those pores
04:19trapping the color and maximizing corrosion resistance final rinse clean dry and the finish is done
04:26scratch resistant corrosion proof and black all the way through the surface not just on it last two
04:32signatures laser engraving specs batch number traceability and the grade 12.9 studs pressed in
04:40under hydraulic pressure here's what eight steps get you full cone nut seats for even clamping force
04:46multi-level steps match to the hub knurled edge cooling fins removal notches grade 12.9 studs every feature
04:55cut into the metal none of them printed on and every batch backed by tuv and sgs test reports
05:01from a bar of aluminum to this the stance on a 2022 land cruiser 300 grs want to see these
05:09go on the
05:09truck step by step with every torque value the full install is linked on description curious what 25 and
05:1730 millimeters actually measured and before and after that video's waiting for you to every spec every test
05:24report in the description thanks for watching
