Web orders only - FREE shipping via UPS Ground (continental US only, motor freight excluded)
 
 
 
 
  BRAKE PRODUCTS
48,138 part numbers: Brake Wheels & Discontinued Brake Parts
   GEMCO
14,363 part numbers: Motion Control Products
 
 		  GLEASON
18,098 part numbers: Cable & Hose Management Systems
   AERO-MOTIVE
3,225 part numbers: Cable & Hose Management Systems
 
 
 
 
 
  CUTLER-HAMMER
925 part numbers: Electrical Control Products
   HUBBELL
8,285 part numbers: Electrical Control Products
   SUPERBOLT
128 part numbers: Fastening Solutions
   RENOLD
408 part numbers: Mechanical Power Transmission Products
 
AUTOMATIC QUANTITY DISCOUNTS
 
 BPI's web orders and web site generated PDF quotations now support quantity discount of up to 10%.
 
 Quotation is valid for 30 days and can be immediately converted into an order.
 
 
CREDIT TERMS CHANGES
 
  1. Any account with invoices outstanding for more than 60 days will automatically be put on a credit hold.
  2. New customer payment terms are "Credit Card" only, full pre-pay. Credit Card information needs recorded at the time of order. Terms can be re-negotiated, upon successful payment.
 
Web: www.SuperBoltDirect.com Email: sales@SuperBoltDirect.com Phone: (888) 861-8777
 
SuperBoltDirect Online Order
Database Lookup:      
Total 48138 part numbers listed in this database. Shown in 2408 pages by 20 items.
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Part
Number		 Product
Category		 Description Image Stock
Qty		 Weight
(lbs.)		 Price
(US$)		 Order
Quantity
GRD-55-4E-3SP-WR-80 Gleason Reel Parts Gleason Hubbell Geared Rotary Limit Switch 
Part 55-4E-3SP-WR-80 
Series 55 Rotary Limit Switch 
Standard Dwell Cams 
Right Hand shaft Extension 
Gear Ratio 80 to 1 
Contact Blocks 3 
Circuits 3 N.O. / 3 N.C. 
Switch Type: S.P.D.T. 
NEMA 4 Enclosure 
Turns of Drive Shaft to Trip Contacts 
Maximum 68 
Minimum 1.5 
Overtravel 12 
Reset 0.75 
Contact Block Specifications 
15 AMP 120, 240, 480 or 600 Volt AC 
1/2 H.P. 120 Volt AC 
1.0 H.P. 240 Volt AC 
0.8 AMP 115 Volt DC 
0.4 AMP 230 Volt DC 
Pilot Duty 600 Volt AC Maximum 
Features 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple 
Conduit Connection Tapped for 1 Inch NPT 
Ships in 5 work days, WI 53050 
[Amazon] Dated 1/18 
(6LBS) H 4" L 8" W 5" Box 
aka GR62652103		 - 0 0.00 1,325.00
GRD-55-4E-3SP-WR-80-LD Gleason Reel Parts Gleason Hubbell Geared Rotary Limit Switch 
Part 55-4E-3SP-WR-80-LD 
Series 55 Rotary Limit Switch 
Extended Dwell Cams 
Right Hand shaft Extension 
Gear Ratio 80 to 1 
Contact Blocks 3 
Circuits 3 N.O. / 3 N.C. 
Switch Type: S.P.D.T. 
NEMA 4 Enclosure 
Turns of Drive Shaft to Trip Contacts 
Maximum 68 
Minimum 1.5 
Overtravel 12 
Reset 0.75 
Contact Block Specifications 
15 AMP 120, 240, 480 or 600 Volt AC 
1/2 H.P. 120 Volt AC 
1.0 H.P. 240 Volt AC 
0.8 AMP 115 Volt DC 
0.4 AMP 230 Volt DC 
Pilot Duty 600 Volt AC Maximum 
Features 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple 
Conduit Connection Tapped for 1 Inch NPT 
Ships in 5 work days, WI 53050 
[Amazon] Dated 1/18 
(6LBS) H 4" L 8" W 5" Box 
aka GR62652703		 - 0 0.00 1,341.80
GRD-55-4E-4DP-WB-111 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-111 
Gear ratio: 111 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 97, Min: 2, Overtravel: 14, Reset: 1.25; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653414		 - 0 0.00 1,774.41
GRD-55-4E-4DP-WB-111-LD Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Extended Dwell Cams, Dual shaft, P/N: 55-4E-4DP-WB-111-LD 
Gear ratio: 111 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 90, Min: 3, Overtravel: 21, Reset: 2.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653714		 - 0 0.00 1,774.41
GRD-55-4E-4DP-WB-1280 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-1280 
Gear ratio: 1280 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 1095, Min: 24, Overtravel: 185, Reset: 23.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653419		 - 0 0.00 2,524.67
GRD-55-4E-4DP-WB-20 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-20 
Gear ratio: 20.5 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 18, Min: 1, Overtravel: 2.5, Reset: 0.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653411		 - 0 0.00 1,774.41
GRD-55-4E-4DP-WB-20-LD Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Extended Dwell Cams, Dual shaft, P/N: 55-4E-4DP-WB-20-LD 
Gear ratio: 20.5 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 17, Min: 1, Overtravel: 3.25, Reset: 0.25; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653711		 - 0 0.00 1,774.41
GRD-55-4E-4DP-WB-222 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-222 
Gear ratio: 222 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 192, Min: 3, Overtravel: 30, Reset: 2.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653415		 - 0 0.00 1,939.70
GRD-55-4E-4DP-WB-222-LD Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Extended Dwell Cams, Dual shaft, P/N: 55-4E-4DP-WB-222-LD 
Gear ratio: 222 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 182, Min: 4, Overtravel: 40, Reset: 4; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653715		 - 0 0.00 1,939.70
GRD-55-4E-4DP-WB-333 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-333 
Gear ratio: 333 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 265, Min: 4, Overtravel: 48, Reset: 3.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653416		 - 0 0.00 1,939.70
GRD-55-4E-4DP-WB-333-LD Gleason Reel Parts Gleason 55-4E-4DP-WB-333LD LIMIT SWIT Ships in 5 days aka GR62653716 - 0 0.00 1,939.70
GRD-55-4E-4DP-WB-40 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-40 
Gear ratio: 42.5 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 36.5, Min: 1, Overtravel: 6, Reset: 0.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653412		 - 0 0.00 1,774.41
GRD-55-4E-4DP-WB-40-LD Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Extended Dwell Cams, Dual shaft, P/N: 55-4E-4DP-WB-40-LD 
Gear ratio: 42.5 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 35, Min: 1.5, Overtravel: 7.5, Reset: 0.75; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653712		 - 0 0.00 1,774.41
GRD-55-4E-4DP-WB-444 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-444 
Gear ratio: 444 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 381, Min: 5, Overtravel: 63, Reset: 4.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653417		 - 0 0.00 2,112.19
GRD-55-4E-4DP-WB-640 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-640 
Gear ratio: 640 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 550, Min: 8, Overtravel: 90, Reset: 7; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653418		 - 0 0.00 2,112.19
GRD-55-4E-4DP-WB-80 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Dual shaft, P/N: 55-4E-4DP-WB-80 
Gear ratio: 80 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 68, Min: 1.5, Overtravel: 12, Reset: 0.75; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653413		 - 0 0.00 1,774.41
GRD-55-4E-4DP-WB-80-LD Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Extended Dwell Cams, Dual shaft, P/N: 55-4E-4DP-WB-80-LD 
Gear ratio: 80 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 66, Min: 2, Overtravel: 14, Reset: 1.25; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653713		 - 0 0.00 1,774.41
GRD-55-4E-4DP-WL-111 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Left Hand shaft, P/N: 55-4E-4DP-WL-111 
Gear ratio: 111 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 97, Min: 2, Overtravel: 14, Reset: 1.25; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62652514		 - 0 0.00 1,690.58
GRD-55-4E-4DP-WL-111-LD Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Extended Dwell Cams, Left Hand shaft, P/N: 55-4E-4DP-WL-111-LD 
Gear ratio: 111 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 90, Min: 3, Overtravel: 21, Reset: 2.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62653114		 - 0 0.00 1,712.92
GRD-55-4E-4DP-WL-1280 Gleason Reel Parts Gleason Series 55 Rotary Limit Switch, Standard Cams, Left Hand shaft, P/N: 55-4E-4DP-WL-1280 
Gear ratio: 1280 to 1; 
Contact Blocks: 4; 
Circuits: 4NO, 4NC; 
Switch Type: D.P.D.T.; 
NEMA 4; 
Turns of Drive Shaft to Trip Contacts: 
Max: 1095, Min: 24, Overtravel: 185, Reset: 23.5; 
Contact Block Specifications: 
15 Amp 120, 240, 480 or 600 VAC 
1/2 H.P. 120 VAC, 1.0 H.P. 240 VAC 0.8 Amp 115 VDC, 0.4 Amp 230 VDC 
Pilot Duty 600 VAC Max 
Features: 
High strength steel shaft, Key way, Through Hole & Setscrew Dimple; 
Conduit Connection Tapped for 1.00" NPT; 
(6LBS) H 4" L 8" W 5" 
[Amazon][1/2018] 
aka GR62652519		 - 0 0.00 2,364.42
Prices are subject to change without notice. Last updated: 30-Aug-2025 06:58:19 AM (EST)
Application Information Requirements
 
 In line with the manufacturer's requirements, Brake Products, Inc. is now obligated to obtain the following application information, before providing any fasteners inquiries/orders:
  1. What is the application?
  2. What is the required preload or what are they currently torqueing the nuts to?
  3. What is the operating temperature?
  4. Are there any space limitations?
  5. Attach any drawing or picture of the application.
This is only the basic application information and more questions may follow depending on the application itself.
  
 
Secure Online Order

 
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Part Number Lookup
 
 Enter at least three characters of a Superbolt part number to retrive the list of all documents (such as specifications, manuals, guides, drawings, etc.) from our web site, referencing this part number:
 
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 To obtain an instant formal printable PDF quotation use shopping cart and select "View PDF Quote", instead of checking out. Click here for instructions.
 
 Your shopping cart is kept intact and you can still check out at a later time.
What is a multi-jackbolt tensioner?

 
 A "Superbolt" or "multi-jackbolt tensioner (MJT)" is a direct replacement for hex nuts, covered nuts, bolts, etc. They spin onto your existing bolt or stud and provide a better way to bolt up your joint. They consist of three components, shown above.
 
Click here to learn more
Superbolt Lube
 

Superbolt Lube
  
 JL-M
Moly-Disulphide Based Jackbolt Lubricant: JL-M MSDS
 
 JL-G
Graphite Based Jackbolt Lubricant: JL-G MSDS
 
 Apply between Jackbolt Tips & Washer.
 
 JL-G and JL-M Lubricant Certificate of Conformance
 
 JL-G and JL-M Lubricant Shelf Life Letter
 
Nut-style tensioners

Nut-style tensioners
 
 Superbolt multi-jackbolt tensioners (MJTs) replace existing hex nuts. Only hand tools are required for installation and removal of any size tensioner. Safe, accurate and economical! We have a wide range of standard series, as well as an unlimited capacity to create special designs to meet your unique needs.
Bolt-style tensioners

Bolt-style tensioners
 
 Bolt style Superbolt multi-jackbolt tensioners (MJTs) replace existing studs or bolts. Ideal for applications with tapped holes, or where threading a stud into a nut would be impractical. The outside diameter is smaller than a nut type tensioner on a stud, allowing MJTs to fit into tighter areas.
Flexnuts

Flexnuts
 
 Flexnuts are used in combination with Superbolt tensioners and are designed to flex out at the bottom and flex in toward the top of the nut. This distributes the bolt load along many threads, adds elasticity, and prevents stress concentrations in the first few threads.
SMX Mill Motor Nuts

SMX Mill Motor Nuts
 
 SMX Mill Motor Nuts are used to replace standard mill motor armature nuts supplied by electric motor manufacturers. SMX tensioners are available for most standard motor frame sizes. Preload matches the hub stress capacity of brake wheels and pulleys.
 
This web site is owned and operated by Brake Products, Inc.
Brake Products, Inc.   16751 Hilltop Park Place
  Chagrin Falls, Ohio 44023
  Phone: (440) 543-7962
  Fax:     (440) 543-7963
  Web:   www.brakeproducts.com
  Email: sales@brakeproducts.com
  Federal ID #: 34-1473351
  CAGE Code: 1QTP8
  DUNS# 14-748-2392
  Download: Form W-9
  ACH Form: Word   /   PDF
Supplier of Industrial Brake Parts Since 1985
 This web site: Owned and operated by Brake Products, Inc.
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