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Boston Gear 30217864 QB620A bronze plain sleeve bearing for general industrial applications. Self-lubricating sintered bronze construction provides reliable low-speed, high-load performance in rotating shaft assemblies.
MODEL QB620A
Contact supplier for technical support on: 800-626-2120
$819.76 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: See conditions
When used with Boston Gear worms, Boston Gear worm gears provide effective power transmission in applications requiring high-ratio speed reduction in a limited space using right angle (90°), non-intersecting shafts. They are also the smoothest, quietest form of gearing when properly applied. Boston Gear offers worm gears manufactured from a variety of materials, such as acetal, minlon, bronze, and cast iron to suit your application requirements. Note: Because the efficiency of a worm gear drive depends on the lead angle and number of starts on the worm, the ratio should be kept low. To run properly, worms and worm gears operating together must have the same diametrical pitch and threads.
| Mating Worm (Hard) | 6 DP, Quad Thread |
|---|---|
| Ratio | 5:1 |
| Product Family | Worm Gears |
| Diametrical Pitch | 6 |
| O/P Rating | 639 |
| Product Description | Worm Gear, 6 DP, 14.5 Pa, 20 Teeth, RH, Bronze |
| Altra Master No. | 30217864 |
| Material | Bronze |
| Bore Size | 1.250 |
| Upc | 781711138069 |
| Hand | Right Hand |
| Weight | 3.131 |
| Flush Face To Wm C/L | 0.500 |
| Center Distance | 2.667 |
| Family Id | 30, 065 |
| Gear OD | 3.77 |
| Hub Diameter | 2.000 |
| Unit Of Measure | English |
SKU: 42691
Purchase
Great pricing - Fast shipping - A vendor I have used in the past and will again in the future.
Read moreSKU: 34746
Fast shipping
I ordered this part hoping it would arrive within 2 weeks because I had an emergency situation with an employee waiting to repair a piece of equipment at a customer’s location. The part actually arrived halfway across the country in 5 days including the weekend. MRO processed, packaged and shipped it with incredible speed. Thanks again!
Read moreSKU: 35104
12d.p. 14t spur gear
This item was closer to exactly what I needed than I had thought possible to find in the last 75 or so years. quite affordable, too. I almost didn't look, but when I did, there it was. I had in hand in just a couple of days.
Read moreSKU: 37408
New lead screw gear.
Used this gear on a new lead screw l made for my old 1919 LeBlond belt drive lathe. It worked great for my application.
Read more
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| Model | 23092 CAK/C4W33 |
| Brand | BLACKSTAR |
| Model | BLS STQ1-3/4 |
| Brand | BLACKSTAR |
| Model | BLS H50BS27 1 1/4 K2S |
SKU: 42691
Purchase
Great pricing - Fast shipping - A vendor I have used in the past and will again in the future.
Read moreSKU: 34746
Fast shipping
I ordered this part hoping it would arrive within 2 weeks because I had an emergency situation with an employee waiting to repair a piece of equipment at a customer’s location. The part actually arrived halfway across the country in 5 days including the weekend. MRO processed, packaged and shipped it with incredible speed. Thanks again!
Read moreSKU: 35104
12d.p. 14t spur gear
This item was closer to exactly what I needed than I had thought possible to find in the last 75 or so years. quite affordable, too. I almost didn't look, but when I did, there it was. I had in hand in just a couple of days.
Read moreSKU: 37408
New lead screw gear.
Used this gear on a new lead screw l made for my old 1919 LeBlond belt drive lathe. It worked great for my application.
Read moreItem must be unused.
Item must be in it's original package.
25% Restocking, shipping and handling fees may apply to any return with this manufacturer.
For more information please consult https://www.mrosupply.com/page/returnwarranty-policy/