Schaublin 70 manual

It also explains how to properly set the braking time and setting the engaging force, and it contains a foldout with cross sectional view parts diagram of the This manual provides instructions on how to dismantle the headstock and how to set the bearing preload.

It also covers how to fit and operate the lever-operated quick-closing attachment as well as how to replace the closing dogs. The manual has a foldout with cross-sectional view parts diagrams of the headstock with the quick-closing attachment. It then covers how to adjust the screw-operated carriage and provides a specifications sheet on it.

Register Forgot password? What's New? Likes: 5 Post 2 Post 1 Post 1 Post 1. Results 1 to 16 of Thread: Schaublin 70 headstock bearing removal. Thread Tools Show Printable Version. Schaublin 70 headstock bearing removal For Schaublin 70's with roller element bearings, the manual recommends cleaning and re-lubing the headstock bearings periodically every 5 years and gives instruction on disassembly.

Removal of spindle shaft is quite easy following their detailed directions, the last of which is "then remove the bearings" As the shaft came its not clear to me how to do so. Thanks Here's the spindle - anyone know how to remove the bearings? On the inboard side, the outer race is left in the headstock. Does this come out for cleaning, as part the PM?

Outboard, how is this bearing removed? Wittmason liked this post. It will drop right out when the weld cools. Don't do that. If that were my machine I'd give the rollers a quick spray with solvent and then re-grease with the recommended type of grease. Use less than you think you need.

The anti-friction bearing headstock featured an adjustable double row roller bearing NNK-SP in the front and a pair of ball races at the rear handling thrust loads.

Initially deep groove bearings were used in the rear, but these were later replaced with angular contact AC type. Both types of bearing are equal to the task, although the AC type are generally regarded as more suitable. These headstocks are lubricated by oil gun and have an oil nipple at each end.

Grease must never be used with this bearing arrangement and oil should be administered sparingly. Over-oiling can cause overheating and premature wear. In the late s Schaublin redesigned the headstock bearing arrangement once more and fitted a single angular contact bearing at each end of the spindle.

This rather unconventional arrangement probably represents the best headstock in terms of reliability and ease of use. Bearings were greased and sealed only requiring maintenance after many years of service. AC bearing headstocks are recognisable by the absence of oil cups or oil nipples.

This design of headstock is used in current machines. Carriages: Up to the early s Schaublin 70 carriages with the exception of their working surfaces were painted. Covered slides had machined and hand-scraped ways with parallel gibs adjusted with multiple grub screws. The top slide could set to any angle to the axis of the lathe against a graduated scale.

Hardened and ground V form feedscews featured a cast iron nut for the top-slide and a pair of cross drilled bronze discs nuts on the bottom slide. Nuts were carefully matched to feedscrews and typically had less than 0. Feedscrews were supported in plain cast iron pillow blocks with thrust taken by a hardened disc integral to the feedscrews with an adjustable bronze disc threaded into the pillow block. Covered oil-holes were provided on the pillow blocks for the lubrication of feedscrew bearings.

These earlier slides would have been silky smooth when first made, but half a century-on most will have significant wear and the options for reconditioning are limited as no replacement parts are available.

Regrinding the ways can restore the original geometric accuracy, but feedscrew wear in the feedscrews and the pillow block bearings is very difficult to restore to the original fit and finish. Consequently rebuilt slides are always slightly disappointing. Late carriages are recognisable by their all-over ground finish and engraved ruler scale to the topslide.

Slide-ways had taper gibs and were pressure lubricated via oil nipples. I have collected this information for many years and have found the information they contain to be priceless in using and setting up the machines properly. I believe this manual will be a valuable resource of knowledge that will provide a lot of helpful information that is often hard to find. My manuals are not photocopies. I maintain a high standard of quality in my reproductions.