Nifty Hubs
06-24-15 | 10:19 PM
#1
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From: Fiscal Conservative on the Lefty Coast - Oregon
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Nifty Hubs
Hi folks,
I hope this is in the right place. It’s a repair issue, but for vintage parts.
I recently acquired an interesting pair of hubs. They’re sealed bearing Sunshine hubs. The rear is a hi-lo hub with a large flange on the freewheel side and a smaller one opposite. The front is a medium flange with a 50mm spoke hole circle. They spin stiffly, but are not gritty or notchy. I’m assuming that they are re-buildable, but am wondering if I could use a syringe needle to get some Phil’s Tenacious Oil into the bearings and onto the edge of the seal. Also does anyone have experience replacing these type of bearings? The bearings are labeled: NTN Japan 629 LB or L8. I haven’t researched their availability yet in hopes someone has some info on these hubs.
Any info would be greatly appreciated.
Thanks and regards,
Van
I hope this is in the right place. It’s a repair issue, but for vintage parts.
I recently acquired an interesting pair of hubs. They’re sealed bearing Sunshine hubs. The rear is a hi-lo hub with a large flange on the freewheel side and a smaller one opposite. The front is a medium flange with a 50mm spoke hole circle. They spin stiffly, but are not gritty or notchy. I’m assuming that they are re-buildable, but am wondering if I could use a syringe needle to get some Phil’s Tenacious Oil into the bearings and onto the edge of the seal. Also does anyone have experience replacing these type of bearings? The bearings are labeled: NTN Japan 629 LB or L8. I haven’t researched their availability yet in hopes someone has some info on these hubs.
Any info would be greatly appreciated.
Thanks and regards,
Van
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06-25-15 | 06:56 AM
#2
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cartridge bearings are classified by ID, OD, Thickness and seal type , in industry .
For cross reference purposes, you get a standard number & letter code that way. [such as 6001]
it is possible to pop out the plastic contact seal, clean and repack with grease, then put the seal ring back in place.
you may find its more accessible, after removing the axle.
For cross reference purposes, you get a standard number & letter code that way. [such as 6001]
it is possible to pop out the plastic contact seal, clean and repack with grease, then put the seal ring back in place.
you may find its more accessible, after removing the axle.
06-25-15 | 10:13 PM
#3
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From: Fiscal Conservative on the Lefty Coast - Oregon
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fietsbob,
Thanks for the feedback. I Googled the part number, 629 LB, and found that this size is readily available in many different quality levels. It appears that the primary use for them is car alternators. In that application they see a lot higher RPM, but probably less load. Decent quality ones go for ~$6. So, while I may play with re-greasing them, I'll just get new ones.
Regards,
Thanks for the feedback. I Googled the part number, 629 LB, and found that this size is readily available in many different quality levels. It appears that the primary use for them is car alternators. In that application they see a lot higher RPM, but probably less load. Decent quality ones go for ~$6. So, while I may play with re-greasing them, I'll just get new ones.
Regards,
__________________
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
06-25-15 | 10:27 PM
#4
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From: Seattle
Bikes: Kuota Ksano. Litespeed T5 gravel - brilliant!
Sunshine Hubs
Many Sunshine hubs have an open dating code, of the form NN NN. The code is stamped near the center of the hub body. The first two numbers represent the month of the year; 01 for January, 12 for December. The second two numbers are the year of manufacture (e.g. 84 for 1984).
Sunshine and Sansin hubs were made by the same company. One Sunshine hub was marked only with an A, on a bike made in 84, which matches the Sansin year code.
The "5345" marking on early Sunshine hubs may be a model number. I (Skip) have Sunshine hubs from 1972, 73 and the late 70s that all have that number. Others have reported the same. Mike Marro reports having Sunshine hubs on his April 1983 (Serial # verified) Fuji Royale II marked "5345 C" (a rear hub ) and "5345 R" (a front hub). Could the C indicate rear model and the R front? My earlier hubs have no such letter marking.
Date of Manufacture of Bicycle Components can be used to date a bike: component dating
Many Sunshine hubs have an open dating code, of the form NN NN. The code is stamped near the center of the hub body. The first two numbers represent the month of the year; 01 for January, 12 for December. The second two numbers are the year of manufacture (e.g. 84 for 1984).
Sunshine and Sansin hubs were made by the same company. One Sunshine hub was marked only with an A, on a bike made in 84, which matches the Sansin year code.
The "5345" marking on early Sunshine hubs may be a model number. I (Skip) have Sunshine hubs from 1972, 73 and the late 70s that all have that number. Others have reported the same. Mike Marro reports having Sunshine hubs on his April 1983 (Serial # verified) Fuji Royale II marked "5345 C" (a rear hub ) and "5345 R" (a front hub). Could the C indicate rear model and the R front? My earlier hubs have no such letter marking.
Date of Manufacture of Bicycle Components can be used to date a bike: component dating
06-26-15 | 05:38 AM
#5
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How do you get them out ? Pound on the end of the axle ?
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06-28-15 | 05:37 PM
#6
Thread Starter
Old bikes, Older guy
Joined: Jun 2014
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From: Fiscal Conservative on the Lefty Coast - Oregon
Bikes: A few modern, Several vintage, All ridden when weather allows.
Sunshine Hubs
Many Sunshine hubs have an open dating code, of the form NN NN. The code is stamped near the center of the hub body. The first two numbers represent the month of the year; 01 for January, 12 for December. The second two numbers are the year of manufacture (e.g. 84 for 1984).
Sunshine and Sansin hubs were made by the same company. One Sunshine hub was marked only with an A, on a bike made in 84, which matches the Sansin year code.
The "5345" marking on early Sunshine hubs may be a model number. I (Skip) have Sunshine hubs from 1972, 73 and the late 70s that all have that number. Others have reported the same. Mike Marro reports having Sunshine hubs on his April 1983 (Serial # verified) Fuji Royale II marked "5345 C" (a rear hub ) and "5345 R" (a front hub). Could the C indicate rear model and the R front? My earlier hubs have no such letter marking.
Date of Manufacture of Bicycle Components can be used to date a bike: component dating
Many Sunshine hubs have an open dating code, of the form NN NN. The code is stamped near the center of the hub body. The first two numbers represent the month of the year; 01 for January, 12 for December. The second two numbers are the year of manufacture (e.g. 84 for 1984).
Sunshine and Sansin hubs were made by the same company. One Sunshine hub was marked only with an A, on a bike made in 84, which matches the Sansin year code.
The "5345" marking on early Sunshine hubs may be a model number. I (Skip) have Sunshine hubs from 1972, 73 and the late 70s that all have that number. Others have reported the same. Mike Marro reports having Sunshine hubs on his April 1983 (Serial # verified) Fuji Royale II marked "5345 C" (a rear hub ) and "5345 R" (a front hub). Could the C indicate rear model and the R front? My earlier hubs have no such letter marking.
Date of Manufacture of Bicycle Components can be used to date a bike: component dating
Regards,
__________________
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
06-28-15 | 05:47 PM
#7
Thread Starter
Old bikes, Older guy
Joined: Jun 2014
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From: Fiscal Conservative on the Lefty Coast - Oregon
Bikes: A few modern, Several vintage, All ridden when weather allows.
I'd tap the axle out gently while supporting the hub with a short piece of PVC pipe. Also, use a block of wood between the axle and the hammer. I've used a similar approach to replace the cups in hubs back in the day.
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Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
Remember: Real bikes have pedals.
...and never put a yellow tail on a Red, White and Blue kite!
