John-352932

Ran smooth on the track. Happy so far.

Howdy. I can confirm that the Ultrascale replacement Hornby '61xx' final drive gearWas a good fit for our SR 4-4-0 Schools Class Wellington loco and ran smoothly when turning the motor by hand. Will be putting it on the track tonight to do some final testing.

Bee Thank you for the informative post and apologies for not replying sooner. I thought 61xx final drive gear might actually correspond to a part number which someone could confirm would work for my application. It’s a little frustrating that my parts diagram does not even show this gear or a part number for it so it can be replaced with one of matching spec. Thank you for everyones help. Cheers.

Thanks so much for all of the responses and help. My parts diagram only shows the wheel sets assemblies as x9927 which seems to be unavailable and no specific part number for the gear so am finding it hard to find a Hornby replacement. I do see a gear on ultra scale as referred to as 61xx? Can anyone confirm that would be correct? Correct tooth count and bore size. Only difference that is obvious is the top land on the ultra scale gear. Would this work? Cheers.

Hello, new to the forum so apologies if this has been asked before or if there is a better place to post this. We have a SR 4-4-0 Schools Class Wellington with a cracked gear on the wheel set. I believe this assembly is part# x9927. I'm talking about the black plastic gear shown in the picture below. It is cracked and spinning on the knurled axle. I have already separated the wheels and axle and I know I'll need to quarter them once put together. This train has pretty much always had problems since the beginning when I bought it for my son years ago and am just now trying to get this part. I feel like I have seen posts saying this part is unavailable now but also feel like I maybe saw some brass replacements? Appreciate the help in either getting the assembly or gear. Cheers John