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Author Topic: Carrier Bearing Depth  (Read 2752 times)

Offline Tador

Carrier Bearing Depth
« on: June 29, 2015, 05:34:46 PM »
As several of you know, I've been having issues with a Niche carrier I purchased. The manufacturer has agreed to refund my money, however before I send it back I want to be SURE that it is, in fact, wrong.

Issue:
It appears that the sprocket side bearing is .150" too deep; the sprocket hub will wad the seal before it seats against the bearing race. The sprocket side bearing is .150" deeper than the bearing on the brake disk side.

Request:
Can someone with a known-good assembled carrier please measure the depth from the seal face to the bearing race on each side of your carrier and tell me what your measurements are?

Disclaimer:
This is my first R, and it's a bastardized mess of cob jobs. I don't personally know anyone else that owns one, so I'm heavily relying on the internet and you fine peeps on .org as I have no other point of reference.

~Thanks much

Offline huntertools

Carrier Bearing Depth
« Reply #1 on: June 30, 2015, 07:52:41 AM »
Before you send the carrier back, check and see if you can seat the seal deeper into the housing toward the bearing. I sort of ran into the same problem and mine seemed tight after assembly. (axle would not turn free) I thought I had a bearing depth problem but after measuring everything it was the depth of the seal. I just tapped seal in about 1/8" and everything was good. Hope this helps.
Allen

Offline Jerry Hall

Carrier Bearing Depth
« Reply #2 on: June 30, 2015, 10:31:24 AM »
Quote from: Tador;55563
As several of you know, I've been having issues with a Niche carrier I purchased. The manufacturer has agreed to refund my money, however before I send it back I want to be SURE that it is, in fact, wrong.

Issue:
It appears that the sprocket side bearing is .150" too deep; the sprocket hub will wad the seal before it seats against the bearing race. The sprocket side bearing is .150" deeper than the bearing on the brake disk side.

Request:
Can someone with a known-good assembled carrier please measure the depth from the seal face to the bearing race on each side of your carrier and tell me what your measurements are?

Disclaimer:
This is my first R, and it's a bastardized mess of cob jobs. I don't personally know anyone else that owns one, so I'm heavily relying on the internet and you fine peeps on .org as I have no other point of reference.

~Thanks much

Did you remember to install the sleeve / collar that is about 1 1/2" in diameter and 6" long that goes between the bearings?

Offline Tador

Carrier Bearing Depth
« Reply #3 on: June 30, 2015, 12:30:33 PM »
Allen,
I considered this, but haven't yet tried it.  If I push the seal in to the depth it'd need to be, the sprocket side seal would be .150" below the "surface" of the carrier.  Currently, both seals are flush with each end. Is this how yours ended up? (with one deeper)

Jerry,
Yes, carrier is assembled with twin row bearings and spacer sleeve... which makes it even more weird that one side doesn't fit correctly.

Thanks for the responses guys

Offline huntertools

Carrier Bearing Depth
« Reply #4 on: June 30, 2015, 01:34:26 PM »
Both of the seals were flush with the carrier when I received it. Looked normal so I assembled like that. Once together the axle was tight so I tore it back down and measured the bearing depth vs. old carrier and they were the same. That's when I realized that the sprocket hub was too far into the seal. Tapped seal in only enough for clearance and everything was good.
Allen

Offline Tador

Carrier Bearing Depth
« Reply #5 on: June 30, 2015, 02:42:13 PM »
Roger that, I'll give it a try then. Thank you!