Re: 62mm SRT6 Pulley Available Now
Originally Posted by
crfire001
Could someone post the bearing type used in 62 mm pulley?
A previous thread said the outside diameter (D) was 47mm. The internal diameter is the same as the OEM one and therefore (d) is 32mm. By my estimate the spacer washer shipped with this pulley is 5mm thick.
So we have 32mm x 47mm x 18mm. that would be Nachi #32BG04S3G-2DL available at bearingsdirect.com for $23.59.
or
NSK#32BD4718DUK available at Bearing Sourcefor $21.70
OEM SC pulley bearing.
32mm x 55mm x 23mm.
NSK #32BD45DU or 32BD45DUM, available at BearingSource for $15.40
or
Nachi #32BG05S1- 2DST
Available at bearingsdirect.com for $20.49 and
at $28.53
These are double row, angular contact ball bearings grease filled for auto air conditioners.
Idler and tension pulley bearings.
Good for 15,000 rpm.
#6303DU or #6303DDU
Available at bearing-source.com
Or
For #63032RS or 6303ZZ try bearingsdirect.com
Better bearings are from the SKF range. SKF 6303-2RSL and SKF 6303-2Z, good for 17,000rpm, these bearings are sealed on both sides.
The highest RPM rated bearings (22,000rpm) are sealed on one side, SKF 6303-Z or SKF 6303-RSL if you can find them. If a bearing is sealed on one side only it is easy to clean it and repack with a suitable grease at regular intervals to get extra life out of it, the grease gets thrown out during operation. Put the seal towards the front of the car and hope that not too much crap gets around the back. Using double sealed bearings is best.
These bearings are limited by the speed that the seal can withstand. An unsealed bearing (6303) can do 22,000rpm and the fastest sealed bearing have non contact seals.
These are all single row, deep groove ball bearings, grease filled.
Last edited by onehundred80; Dec 10, 2012 at 01:57 PM.
Reason: Edited for extra contant