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Series 17 thru 20 Form C-11-B

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Niagara Press Parts

Crosshead – Holdown – Adjustment Shaft

When ordering parts always give the catalog and serial number of the shear. The serial number is stamped at or near the front left corner of the bed and also on the metal lubrication plate. Be sure to use complete names of parts listed for positive identification.
1Bed18Wire Rope
2Crown22Front Bracket
3Lower Knife23Scale Locking Screw
4L.H. Housing (Not Shown)24Side Gage
5R.H. Housing32Ball Bearing Caster (20 Shear Only)
6Pocket Bolt Cover33Ball Transfer Socket (20 Shear Only)
7R.H. Gib34V' Bolt
8L.H. Gib (Not Shown)35Leveling Screw
9R.H. Hoddown Guide Cap36Disappearing Stop
10L.H. Holddown Guide Cap (Not Shown)37Bed Adjusting Screw
11Dowel151Scale Locking Washer
12Plow Bolt156Scale
13Spacer159Wire Spacer Clamp
15R.H. Knife Guard Bracket167Slitting Gage
16L.H. Knife Gueard Bracket (Not Shown)

Crosshead Holddown Adjusting Shaft

38Holddown65Cam Roll Pin
39Adjusting Shaft66Snap Ring
40Crosshead67Cam Lever Pin
41Adjusting Shaft Collar68Snap Ring
42Locking Sleeve Spring69Snap Ring
43Locking Sleeve 76Holddown Foot Spring
44Sleeve Bracket97Brace Rod Bolt Nut
45Crosshead Plate (20 Shear Only)98Brace Rod Bolt
46Sleeve Bracket Shim99L.H. Brace Rod
47Roll Pin100Turnbuckle
52R.H. Brace Rod110Eccentric Pin
55R.H. Cam Lever120Guide Piece
56L.H. Cam Lever (Not Shown)188Holddown Spacer
57Crosshead Formica Liner189R.H. Connection Spring
58Cam Roller Bushing190L.H. Connection Spring (Not Shown)
59Cam Roller 226Plow Bolt
60Holddown Formica Liner227Upper Knife
61Snap Ring228Toggle Pin
62Connection Holddown229Snap Ring
63Holddown Link230Holddown Link Pin
64Holddown Link Bracket231Holddown Foot

Eccentric Shaft – Counterbalance

258Counterbalance Rod Upper Nut
259Counterbalance Spring Washer
260RH Counterbalance Spring
261RH Counterbalance Spring
262RH Counterbalance Spring Rod
263Counterbalance Plug
264Counterbalance Rod Lower Nut
265Roll Pin
387LH Counterbalance Spring **
388LH Counterbalance Spring **
389LH Counterbalance Spring Rod **
390LH Main Bearing Cap **
**Not shown
2Crown248Center Bearing Bushing
5RH Housing249Eccentric Strap
220Eccentric Shaft251RH Bearing Bushing
235Key252Brake Collar *
236Key253Brake Strap *
237Cam254Brake Strap Spring *
239Eccentric Cap255Brake Adjusting Stud *
240Key256Washer *
243Center Bearing257Brake Strap Stud *
244RH Main Bearing Cap
245Key*17-18-19 only

Overdrive Gearbox

14Gear Box (17-18-19 only) (20 shown with treadle assembly)
25Bearing Holder
27Pinion Shaft
28Intermediate Shaft
29Intermediate Gear
30Main Gear
31Bearing (19-20 only)
109Pin161Oil Level Sight214Snap Ring
140Single Stroke Cam162Bearing215Flexible Coupling
141LH Sleeve Clutch164Snap Ring216Motor Adapter
142Bearing 165Pipe Plug217Motor
144Clutch Sleave Spring166Oil Slinger218Cover Plate *
150LH Clutch Ring168LH Bearing Bushing219Drain Plug
152Bearing 172Solenoid Plunger Link *220Eccentric Shaft
153Spacing Collar173Link Pin *221Electric Foot Switch *
154Bushing186Gasket Retainer *222Spacer (17-18 only)
155Snap Ring187Gasket *223Nut
157Pinion Shaft Bearing Holder210Solenoid Plunger *224Lock Washer
158Bearing 212Solenoid *225Main Pinion
160Spacer213Solenoid cover *242Pipe Plug
*17-18-19 only

Latch Bracket

Latch Bracket
102Cam Roller Shaft123Latch Spring Pin
103Cam Lever124Bell Crank Pin
104Cam Lever Pin125Bell Crank
105Selector Knob Spring126Latch Spring
106Selector Knob 127Lock Washer
107Throwout Spring128Throwout Shaft Collar
108Throwout Pin129Treadle Spring Plunger
109Latch Pin130Treadle Spring
111Latch 131Locking Bar Indicator
112Throwout Key132Locking Bar Pin
113Throwout134Throwout Housing
114Throwout Ball Bearing135Locking Bar
115Throwout Needle Bearing136Locking Bar Spring
116Selector Knob Pin137Locking Bar End Collar
117Sliding Pin138Cam Roller
118Throwout Shaft163Snap Ring (17-18 only)
119Throwout Housing Cover171Cotter Pin (19-20 only)
121Spacing Collar172Solenoid Plunger Link (17/18/19 only)
122Lock Nut

Manual Backgage

17Backgage Bar81Retainer Bushing
19LH Backgage Bracket82Retainer Bushing Nut
20RH Backgage Bracket83Coupling Gear
21Backgage Handwheel84Handle
48Backgage Brace Rod85Locking Pin
49Backgage Connection Shaft86Knob
50Backgage Locking Sleeve87LH Gear Case Ring
51Locking Sleeve Scale88Spacing Collar LH Shaft
53Bracket Scale89LH Adjusting Screw **
54Adjusting Screw, Indicator Nut90Stop Pin
70RH Gear Case91Locking Sleeve Spring
71LH Gear Case92Adjusting Screw Double Bearing
72Backgage Slide93RH Bearing RH Shaft
73Indicator Nut94LH Bearing RH Shaft
74Bracket Dowel95RH Bearing LH Shaft
75RH Adjusting Screw96LH Bearing LH Shaft
77RH Gear Case Shaft232RH Trunnion-Connection Shaft
78LH Gear Case Shaft233LH Trunnion-Connection Shaft
79Gear Case Bevel Gear234Backgage Brace Rod Bolt
80Adjusting Screw Bevel Gear241Handle Spring
**not shown

Side Extension Gage – Magnetic Rollers

175Outer Gage Support182Roller Mounting Channel Collar
176Squaring Gage Bar183Washer
177Extension Gage Scale184Magnetic Roller
178Extension Gage Arm193Support Screw
179Reversable Bracket194Roller Mounting Channel Spring
180Adjustable Stop Block195Roller Mounting Channel
181Adjustable Stop Arm196Magnetic Roller Channels

Hood Lightbar

267Light Bar Bracket
268Top Plate
269Mirror Bracket
270Mirror Bracket
272Push Button Panel
274Light Bar Bracket
275End Plate

Power Driven Backgage Series No. 20

19LH Backgage Bracket (RH same)363Sprocket
71LH Gear Case (RH same)364Sprocket Housing Gear Case
72Backgage Slide365Coupling Gear
75RH Adjusting Screw (LH same)366Bushing
78LH Gear Case Shaft (RH same)367Coupling Sleeve
79Gear Case Bevel Gear368Connecting Shaft Spring
80Adjusting Screw Bevel Gear369Bushing
81Retainer Bushing370Pillow Block
82Retainer Bushing Nut371LH Connecting Shaft
88Spacing Collar LH Shaft372Sprocket Housing
90Stop Pin373Sprocket
92Adjusting Screw Double Bearing374Sprocket Housing Support
95RH Bearing LH Shaft375Motor Plate
96LH Bearing LH Shaft376Bushing
354Sprocket Housing377Sprocket
355RH Connecting Shaft378Coupling
356Sprocket Housing379Counter
357 Bushing380Motor
358Sprocket 383Flexible Shaft
360Chain Guard385Motor Chain Guard
361Bottom Bracket386Bushing
362Bottom Bracket Spacer


125Bell Crank290Front Cover
276Inside Lever291Stud Pin
277Outside Lever Pin292Vertical Treadle Connection
278Link293Bell Crank
279Link Pin294Bottom Treadle Connection
280Inside Lever Pin295Treadle Lever
282Pipe Plug296Bushing
283Top Cover 297Collar
284Outside Lever298Treadle
285Gear Box299Treadle Bearing
286Top Treadle Connection300Treadle Shaft
287Connection Lever301Bushing
288Stud Pin


45Crosshead Plate327LH Gear Box (RH Same)
211Hinged Backgage Bar328Bearing Retainer
302Coupling329Counter Bracket
303RH Connection Shaft330Counter
304Center Bearing331Spring Collar
305LH Connection Shaft332Spring
306Coupling333Spring Collar
307Snap Ring334Felt Wicking
308RH Gear Box (same as LH)335Slide
309LH Bracket (RH Same)336Slide Spring Retainer
311Sprocket Coupling 337Dowel
312Micro Chain338Bearing Retainer
313Chain Sprocket-Motor339Bearing
315Worm341Back Plate
316Bearing 342Back Plate Bearing Retainer
317Chain 343Copper Tubing with Pipe Plug
318Sprocket 344Copper Tubing
319Center Shaft Coupling345Copper Tubing with Pipe Plug
320Bearing 346Elbow and Nipple
321Worm Wheel347Oil Cup
322Spring348Backgage Plate
323Bracket Liner349Hinge Bolt
324LH Adjusting Shaft (RH Same)350Hinge Bolt Pin
325Bearing 351Adjusting Collar
326Snap Ring352Bearing
353Micropitch Sprocket


185Brake Cover202Spring Rod
191Brake Shoe Spacer203Spring Pod
192Brake Shoe Spacer204Spring
197Pivot Pin205Bushing
198Pivot Spacer206Brake Shoe Pin
199Brake Lever Arm207Trunnion
200Brake Shoe 208Brake Collar
201Brake Shoe Pin209Brake Lining

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1004 E State St Hastings, MI 49058