Description
This pre-assembled unit replaces the left-hand hoisting roll pipe and bearing block in one step. The pipe screws securely into the block’s female thread, while the twin lugs slot straight onto the machine’s pivot pins—restoring factory alignment and smooth vertical travel.
Key features
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Threaded engagement Shaft pipe locks into the block’s internal thread—no pressing required.
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Twin-lug bearing block Pre-bored lugs line up with the original pivot bolts.
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Precision-ground pipe OD Runs true in the right-hand bearing for vibration-free feed.
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Grease nipple port Top-face pad drilled and tapped for routine lubrication.
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Drop-in fit wherever the parts list calls for 1704 (left).
Specifications
| Item | Value |
|---|---|
| Part number | 1704 |
| Orientation | Left-hand assembly (viewed from in-feed) |
| Pipe mounting | Internal female thread in bearing block |
| Lug centres | Match original jig (verify on removed block) |
| Lubrication | Grease nipple, M8 × 1 (supplied) |
| Material | Cast steel block; seamless steel shaft |





