T Gauge Technical Details

I have taken these details from the Internet Archive Wayback Machine pages for the old t-gauge.net website that used to be run by David K. Smith.

Technical Reference: Track 

 Eishindo's track products includes two types. Sectional track with integrated roadbed is available in three colors (wood ties, concrete ties, and transparent), with four curve radii and three straight-track lengths. Switches are manual; two crossings are due early 2011.

In addition, flex track is offered in two styles (concrete or wood ties/sleepers) and two lengths (200mm and 1m). Flex does not have roadbed (although roadbed is available from TGauge.co.uk). Sections are joined with short joiner parts. Flex-to-roadbed transition tracks are available in two styles. 

Track Dimensions	Ref	mm	in	Remarks
Gauge	A	3.2	0.12	+/−0.1 mm
Rail width	B	0.60	0.024	at head
Rail height	C	1.0	0.04
Roadbed overall width	D	12.5	0.5	average
Roadbed overall height	E	3.55	0.14	average
Parallel track spacing	—	12.5	0.5
Small curve radius	—	120	4.72	15º and 30º
Medium curve radius	—	132.5	5.22	15º and 30º
Larger curve radius	—	145	5.7	15º and 30º
Largest curve radius	—	157.5	6.2	15º and 30º
Short straight length	—	30	1.18
Medium straight length	—	60	2.36
Long straight length	—	120	4.72
Short flex length	—	200	7.87
Long flex length	—	1000	39.4
Switch and S-curve length	—	90	3.54
Switch and S-curve offset	—	12.5	0.5

Track planning software featuring the full Eishindo track library is available from AnyRail.  Technical Reference: 103 Series Introduced in December 2007, the 103 Series was Eishindo's first trainset. A set comprises four cars: two powered units in the middle, and two non-powered units on the ends, which contain directional lights. The 103s have some quality control issues, with reliability varying considerably between units. The mechanism consists of a chassis part that press-fits into a shell. The chassis holds the trucks and motor. The shell holds the gearbox in place over the one powered truck. Springs pass current from both trucks up to two power strips embedded in the underside of the shell roof.  Car Dimensions Ref   mm      in    Remarks  Shell overall length A 44 1.73 less couplers Truck spacing B 31 1.22 approximate Axle spacing C 4.5 0.18 Railhead to top of roof D 8.5 0.33 less roof details Shell overall height E 6.1 0.24 less roof details Shell overall width — 6.7 0.26 Gearbox length F 15.6 0.61 Gearbox width — 5.5 0.22 Gearbox height G 4.5 0.18 Motor length H 8.5 0.33 less shaft and gear Motor diameter J 4.1 0.16 less connectors Drive train overall length K 24.5 0.96 approximate Wheel Dimensions Ref   mm        in         Remarks    Axle length overall A 4.15 0.163 average Wheel gauge B 2.8 0.11 average Inside flange-to-flange C 2.25 0.089 average Wheel tread D 0.55 0.022 average Wheel overall width E 0.95 0.037 average Wheel flange diameter F 2.5 0.098 average Wheel tread diameter G 2.0 0.079 average Flange depth H 0.25 0.01 approximate Technical Reference: Hankyu 9000 Series Introduced in March 2010, the 9000 Series is Eishindo's second trainset. A set comprises four cars: the two end units are powered, and contain directional lights; the two center cars are non-powered. The 9000s have Eisnindo's second-generation mechanism, which is considerably better-running and more reliable than their 103s. The powered chassis is a self-contained mechanism; the shell simply slips over the top. The drive train is permanently assembled and cannot be dismantled without cutting parts that cannot be repaired or replaced. The trucks are held in place with tension springs; these can be replaced if necessary.  Car Dimensions Ref   mm      in    Remarks  Shell overall length A 41.2 1.63 less couplers Truck spacing B 28 1.10 approximate Axle spacing C 4.5 0.18 approximate Railhead to top of roof D 8.6 0.34 less roof details Shell overall height E 6.1 0.24 less roof details Shell overall width — 6.1 0.24 Gearbox length F 18.2 0.72 Gearbox width — 5.0 0.20 Gearbox height G 5.0 0.20 less lower gear cover Motor length — 8.5 0.33 less shaft and gear Motor diameter — 4.1 0.16 less connectors Drive train overall length H 27.7 1.0 Weight (powered unit) — — — 2.26 grams Wheel Dimensions Ref    mm       in    Remarks Axle length overall A 4.15 0.163 average Wheel gauge B 2.8 0.11 average Inside flange-to-flange C 2.25 0.089 average Wheel tread D 0.55 0.022 average Wheel overall width E 0.95 0.037 average Wheel flange diameter F 2.5 0.098 average Wheel tread diameter G 2.0 0.079 average Flange depth H 0.25 0.01 approximate Note to kitbashers: Although it may appear there is room to shorten the chassis, there really isn't. The gap between the motor and the truck tower is deceiving; the problem is that there is no room for the truck to move forward because of the motor bulge on the underside of the chassis. Plus, the mechanism is permanently assembled: the electrical strips are secured to the gearbox by melted pins. Removing these pins leaves no practical way of reattaching the electrical strips. All chassis parts are made from engineering plastic, so there's no way to glue or bond the parts. Technical Kiha 40 Series Introduced in April 2010, the KIHA 40 Series is Eishindo's third powered train. The KIHA is a single unit, with no couplers; this reflects how the real units operate, which are self-powered diesels, and thus have no pantographs as the other trainsets do. The KIHAs have Eisnindo's second-generation mechanism, which is considerably better-running and more reliable than their 103s. The powered chassis is a self-contained mechanism; the shell simply slips over the top. The shell contains two lighting units, one in each end. The drive train is permanently assembled and cannot be dismantled without cutting parts that cannot be repaired or replaced. The trucks are held in place with tension springs; these can be replaced if necessary.  Car Dimensions Ref    mm      in    Remarks  Shell overall length A 47.0 1.85 less couplers Truck spacing B 31.4 1.24 approximate Axle spacing C 4.5 0.18 approximate Railhead to top of roof D 9.2 0.36 less roof details Shell overall height E 6.3 0.25 less roof details Shell overall width — 6.9 0.27 Gearbox length F 18.2 0.72 Gearbox width — 5.0 0.20 Gearbox height G 5.0 0.20 less lower gear cover Motor length — 8.5 0.33 less shaft and gear Motor diameter — 4.1 0.16 less connectors Drive train overall length H 27.7 1.0 Wheel Dimensions Ref    mm       in    Remarks Axle length overall A 4.15 0.163 average Wheel gauge B 2.8 0.11 average Inside flange-to-flange C 2.25 0.089 average Wheel tread D 0.55 0.022 average Wheel overall width E 0.95 0.037 average Wheel flange diameter F 2.5 0.098 average Wheel tread diameter G 2.0 0.079 average Flange depth H 0.25 0.01 approximate Note to kitbashers: Although it is possible to shorten the chassis, the chassis parts are made from engineering plastic, so there's no way to glue or bond the parts. If you need a shorter chassis, try the 9000 Series. Lengthening the chassis is certainly an option, but note that as the units get longer, the more trouble they have with sharp curves.