Trucks, (Metal) Wheel Sets, Couplers. A Little Info
N-Scale Freight Car / Passenger Car / Caboose Trucks:
Micro Trains -> Many Different Styles
BLMA -> 70 Ton / 100 Ton (Great for lowering ride height without modifying bolsters)
Atlas -> Different Styles (The Atlas 100 Ton truck also lowers ride height without modifying bolsters)
Intermountain Railway Co. -> A Few
KATO -> A Few (Select a freight car under "N-Scale Products" to look up trucks)
RAPIDO TRAINS INC. -> A Few
American Limited Models -> A Few
Freight Car Trucks Friction Bearing:
Banned from interchange service in:
01-01-1991 for cars carrying hazardous materials.
01-01-1994 for cars carrying non-hazardous materials.
01-01-1995 for cars with trucks that were converted from friction to roller bearing side frames (Hot Box detectors could not detect them if / when they overheated).
Freight Cars & Truck Sizes, What Size To Use?
I found a post on The Railwire about 70 Ton and 100 Ton trucks and how to look up which truck to use under your rolling stock, read reply #12
Post from "Hyperion" on The Railwire:
The rating of a truck refers to the capacity of the load the car is allowed to carry, and it is actually an estimate at best.Today, a "100T" truck can carry a 286,000lb total load inclusive of the car weight (i.e. gross rail weight) (263K prior to, I believe, 1994). A "70T" truck car carry a 220,000lb total weight inclusive of the car.So rather than looking at the capacity, look at the total gross weight (add light/tare weight to the capacity) and see if its' less than 220K or 286K, that will determine the truck size used.
Freight Car Trucks and Wheel Diameters:
<=50 Ton Trucks ride on 28" Wheels
70 Ton Trucks ride on 33" Wheels
100 Ton Trucks ride on 36" Wheels
125 Ton Trucks ride on 38" Wheels
N-Scale Wheel Diameter Conversions:
.175" (4,45mm) = 28" Wheels
.188" (4,76mm) = 30" Wheels
.206" (5,24mm) = 33" Wheels
.225" (5,72mm) = 36" Wheels
.238" (6,03mm) = 38" Wheels
N-Scale (Metal) Wheel Sets:
FVM -> Metal Wheel Sets Axle Lengths:
.540" (1,372cm) -> Micro Trains & Athearn trucks
.553" (1,405cm) -> Intermountain trucks & Atlas trucks (plastic wheels)
.563" (1,430cm) -> Con-Cor & Bachmann & old Atlas trucks (metal wheels)
Atlas -> (Metal) Wheel Sets
NorthWest Short Line -> Metal Wheel Sets
Intermountain Railway Co. -> (Metal) Wheel Sets
Logic Rail Technologies -> Detectable Metal Wheel Sets (Detectable Metal Wheel Sets used for train detection, signaling etc.)
KATO -> Metal Wheel Sets
N-Scale Odd Ball Axle Length:
Atlas .568" (1,444cm) used under the 20,700 gal tank car.
N-Scale Pizza Cutters:
Have a look at MooseID's post "What are 'Pizza Cutters'".
N-Scale Knuckle Coupler Names:
Micro Trains --> Magne-Matic
Athearn -------> McHenry (Info: McHenry Couplers and Athearn are members of Horizon Hobby)
KATO --------> Semi Automatic / Kinematic (used on the “Morning Daylight”)
Atlas ----------> Accumate (Info: Couplers are manufactured by Atlas under license from AccuRail, Inc.)
Bachmann -----> Dummy knuckle coupler
Older, Other, Discontinued:
Red Caboose -> Unimate
Intermountain Railway Co. -> ??
The Rapido Coupler
(N-Scale) Knuckle Coupler Height(s):
1:1 Scale Knuckle Coupler Heights (top of rail to middle of coupler)
Empty cars -> min 32 1/2" max 34 1/2"
Loaded cars-> min 31 1/2" max 33 1/2"
Empty cars -> min 0.203" max 0.216" (5,2mm / 5,5mm)
Loaded cars-> min 0.197" max 0.209" (5,0mm / 5,3mm)
N-Scale Standard Knuckle Coupler Height (top of rail to middle of coupler)
0.216" (5,5mm) which is the same as the max height for an empty car.
*See a error or have something to add? let me know (post)!*