| 摘要 |
A band brake drum assembly 50 is provided and includes a brake band member 52, a generally round and/or cylindrical band brake drum 54 which is disposed concentric to band 52, and an input or hub shaft 56 which is fixedly coupled to and rotatably drives drum 54. Drum includes an interior surface having a recessed portion 62 which is effective to retain a certain amount of lubricant or oil within the drum, and several relatively large drainage holes 70 which are effective to quickly drain excess lubricant from drum 54, thereby providing a consistent amount of lubricant within drum 54 and improving the overall performance of the brake band assembly.
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