Pilot bearing and bushings
m |
(→Bearing (rolling element): Add text) |
||
| Line 38: | Line 38: | ||
An all bronze oilite bushing is basically incapable of such damage, the bronze being softer than the shaft causes the bushing to be sacrificed instead of the shaft. | An all bronze oilite bushing is basically incapable of such damage, the bronze being softer than the shaft causes the bushing to be sacrificed instead of the shaft. | ||
| − | === | + | ===Needle bearing (rolling element)=== |
| − | It's been stated that the roller needle bearing has a Rockwell hardness of about 57 and the newer transmission's gears are rated between 61 and 63. | + | Unless these are original equipment, it's not usually advisable to use them in place of a sintered bronze pilot bearing. If a rolling element type bearing is going to be used, it's imperative that the bellhousing opening to transmission input shaft alignment be within 0.002" to prevent premature bearing failure. In the case of a bronze bushing type bearing, there is more leeway for any misalignment. |
| + | |||
| + | It's been stated that the roller needle bearing has a Rockwell hardness of about 57 and the newer transmission's gears are rated between 61 and 63. In cases where the input shaft may be 'softer' than the needle bearings (like possibly in older transmissions), there is a chance undue wear could occur to the input shaft, possibly necessitating replacement. | ||
{| | {| | ||
Your Privacy Choices