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Series PN 120 – 150 Ton – Form B-16

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Niagara Press Parts

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Series PN 120 – 150 Ton – Form B-16

Click to enlarge drawing

1Foot Switch26Screw
2Bracket Screws27Oil Level Sight
3Push Button Station Bracket28Gasket
4Control Box29Screw
5Cotter Keys (optional)30Screws, Gear Box Cover
6Knockout Bars (optional)31Gear Box Cover
7Lock Screw (optional)32Motor Plate (Type B)
8Knockout Pin (optional)33Motor Plate Support (Type B)
9Support Screw (optional)34Motor Mounting Screws
10Knockout Support (optional)35Plate Mounting Screws
11Bolster Nut35APlate Support Mounting Screws
12Bolster Washer36Motor Mounting Assembly (Type A)
13Bolster Screw37Assembly Mounting Screws
14Bolster Plate38Motor Mounting Screws
15Retainer Rings39Gib Lock Screw
16Yoke Pin40Lockwasher
17Yoke 41Adjusting Locknut
18Roll Pin 42Adjusting Screw
19Air Counterbalance (See parts list page 27)43Gib Screw
20Tie Rod Upper44Gib Spacers
21Tie Rod Lower45Front R.H. Gib
22Screw, Mounting Plate45LFront L.H. Gib (not shown)
23Mounting Plate46Front Gib Liner
24L.H. Gear Guard47Rear Gib
25R.H. Gear Guard48Rear Gib Liner
Note: Motor mounting brackets will be either Type A or Type B as listed above.


1Cover Screw43L.H. Mounting Plate73Screw
2Counter Gear Bushing44Roll Pin 74Limit Switch
3Counter Gear 45L.H. Driver Pulley75Chain
5Counter 47Screw77Driver Sprocket
6Gear Box Cover48Driver Sprocket78Retainer Ring
7Counter Screws49Key79Bull Gear
8Idler Shaft50Motor Screw80Bearing Cap Screw
9Idler Gear51Motor 81Outboard Bearing Cap
10Shaft Gear52Gear Box Cover82Inboard Bearing Cap
11Gear Box 53Chain83Inboard Bushing
19Roll Pin54Driven Sprocket84Outboard Bushing
20Coupling Sleeve55Screw85Key
21Coupling Gear56Gear Box 86L.H. Eccentric Shaft
22Bushing57L.H. Inboard Bearing Retainer87R.H. Eccentric Shaft
25Spring58L.H. Inboard Bearing88Connection Bushing
26Roll Pin59Key89R.H. Connection
27Key60Screw90L.H. Connection
28Spring Support61L.H. Outboard Bearing Retainer91Ball Cover Screw
32L.H. Trunnion62Shim92Ball Cover
33Roll Pin63L.H. Outboard Bearing 93Shim
34R.H. Trunnion64L.H. Worm94Ball Seat
35Adjusting Shaft Connection Tube65Screw95Connection Cover Screw
36Screw66R.H. Inboard Bearing Retainer96Stop Plate Screw
37Timing Belt67R.H. Inboard Bearing 97Stop Plate
38Roll Pin68Screw98Adjusting Nut
39L.H. Driven Pulley69R.H. Outboard Bearing Retainer99Shim
40Bushing70Shim100Connection Cover
41Counter Screw71R.H. Outboard Bearing 101Dowel
42L.H. Counter72R.H. Worm102Ball Screw


1Retainer Ring11Inner R.H. Bearing, Intermediate Shaft
2L.H. Drive Pinion12Retainer Ring
3L.H. Bearing Retainer Ring13R.H. Drive Pinion
4L.H. Bearing, Intermediate Shaft14R.H. Bearing Retainer Ring
5Screw15R.H. Bearing , Intermediate Shaft
6L.H. Bearing Cartridge, Intermediate Shaft16Screw
7Screw17R.H. Bearing Cartridge, Intermediate Shaft
8Inner R.H. Bearing Cartridge, Intermediate Shaft18Retainer Ring
9Retainer Ring19Intermediate Gear
10Retainer Ring20L.H. Drive Pinion Key
21R.H. Drive Pinion Key
22Intermediate Gear Key
23Intermediate Shaft


1Drive Belt18Brake Support Bracket
2Drive Sheave19Air Releasing Brake (See parts list on page 25)
3Key20Retainer Ring
4Screw21Brake Collar
5Drive Motor22Screw
6Screw23R.H. Bearing Cartridge, Driveshaft
7Air Friction Clutch (See parts list on page 23)24Retainer Ring
8Clutch Key25Retainer Ring
9Retainer Ring26R.H. Bearing, Driveshaft
10Driving Hub27Collar, Driveshaft
11L.H. Flywheel Bearing28Screw
12Flywheel29L.H. Bearing Cartridge, Driveshaft
13R.H. Flywheel Bearing30Retainer Ring
14Jam Nut31L.H. Bearing Driveshaft
15Set Screw32Brake Key
16Brake Stop Plate33Driveshaft
17Screw34Retainer Rings
35High Speed Pinion


1Drive Shaft10Rotary Air Seal Adapter
2Driving Hub11Adapter 'O' Ring
3Driving Hub Retaining Ring12Rotary Air Seal
4Clutch Snap Ring13Pressure Plate
5Clutch Housing14Inner Pressure Plate
6Clutch Cylinder15Pressure Plate Guides and Nut
7Clutch Piston16Friction Disc
8Piston Wiper17Spreader Spring
9Piston 'O' Ring18Spring Guide
19Guide Collar


179Brake Collar Snap Ring*190Tubular Rivet for Brake
*180Brake Collar191Brake Pivot
181Brake Air Cylinder Head192Pivot Spacer
182Brake Spring Pot193Short Brake Shoe Pin
183Brake Spring 194Long Brake Shoe Pin
184Brake Piston195Short Brake Shoe Spacer
185Piston 'U' Ring Packing196Long Brake Shoe Spacer
186Non-Metallic Bushing197Trunnion
187Brake Lever Arms198Cylinder Drain Petcock
188Brake Shoe199Brake Pivot Pin Retaining Rings
189Brake Shoe Lining200Locknut
201"O" Ring
*Not Shown


1Tie Rod Nut12Clevis
2Upper Cylinder Cap13Retainer Ring
3Counterbalance Cylinder14Air Tank
4Piston Rod Nut15Tank Rod
5Piston 16Tank Bracket
6Piston Rod 17Safety Valve
7Tie Rod 18Bushing
8Lower Cylinder Cap19Air Supply Line
10Lock Nut21Stuffing Box Packing
11Compression Nut22Piston Packing
23Velumoid Gasket

Why use genuine Niagara parts?

① Good and Services Warranty

Purchase press parts with confidence from BCN Technical Services. We guarantee at the time of delivery, the goods will be free from defects in materials and workmanship. We will perform services in a prompt, professional and workmanlike manner. View our Goods and Services Warranty for details.

② Original OEM Specifications

Replacement parts are manufactured to original OEM specifications from record sets maintained by serial number, so there’s no guessing or wondering if a part will fit.  We have original drawings, manufacturing expertise, and the experience of a team of engineers who know your press inside and out.

③ Delivery

BCN Technical Services has an extensive inventory of the most requested OEM replacement parts in stock at our facility in Hastings, MI. Over 14,000 unique spare parts for presses are kept on hand. Our experienced staff is dedicated to quickly providing that critical part, which allows you to avoid delayed repairs, lost productivity and lost revenue.

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Hours of Operation
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BCN Technical Services, Inc.

1004 E State St Hastings, MI 49058