NWSl sagami motors again how to read specs.?

[steveturner]

Guys i was looking for an old spec sheet on how to read specs of motor say from the model if that applicable. For instance a 16309-9 vs a 16308-9 is the only difference the shaft length. I did look on line for an old reference sheet but no luck. I was looking for a 16309-9 old style NWSL Sagami but did find a 16308-9. For sure it has a long shaft that i could cut.Steve

[Donnell Wells]

Hi Steve, From all that I could gather, the 16308 and the 16309 are virtually the same motor. Both have been replaced by the 1630D-9 which incidently has a smaller 1.5mm diameter shaft, as opposed to the more conventional 2mm shaft. (Also the "D" denotes a double shaft, and "S" a single shaft.)

Here is a spec sheet from NWSL outlining all the motors they offer:

www.nwsl.com/uploads/S-CAB_cat_pages_1-18.pdf

Better yet, check this out:

www.nwsl.com/uploads/cat_chap2_for_web.pdf

Donnell

[Donnell Wells]

Straight from the NWSL website:

BUSHING (REDUCER, SHAFT ADAPTER)
A bushing is used to adapt one size shaft (or axle) to a larger size hole (or shaft) for coupling purposes or otherwise. Some modelers refer to them as ‘reducers’. A bushing can also be used as mechanical shaft connectors HOWEVER this requires perfect alignment of the connected shafts for satisfactory operation, such alignment can rarely be successfully accomplished or maintained. Bushings can sometimes be used as bearings, but must be reamed to proper final bore - this is an emergency solution at best. Because the use of bushings can result in tolerance buildup and eccentricity in a mechanism, NWSL has worked to alleviate their necessity by developing a line of universal couplings which can fit (and couple) virtually any shaft size found in small scale models - see the #480-6 series Universal Couplings. The tolerance buildup and thus eccentricity can be particularly troublesome if bushings are used to mount flywheels (which require concentricity as close to perfect as possible for satisfactory smooth operation). Therefore, NWSL discourages use of bushings but makes this limited selection available to help save those ‘impossible’ model building situations

Part #	ID	OD	Material
10157-9	1.2mm	2.4mm	brass
10158-9	1.2mm	2.0mm	brass
10159-9	2.0mm	2.4mm	brass
10160-9	1.2mm	1.5mm*	brass
10161-9	1.5mm	2.0mm	brass
10162-9	2.4mm	1/8"	steel
10164-9	1.5mm	2.4mm	steel
10165-9	1.0mm	2.4mm	steel
10166-9	2.0mm	1/8"	brass
10169-9	2.0mm	2.4mm	steel

[/tr][/table]
*Adapter style, not bushing[/font]