Web orders only - FREE shipping via UPS Ground (continental US only, motor freight excluded)
 
 
 
 
  BRAKE PRODUCTS
48,139 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
8,286 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 48139 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
REN-S COUPLING 1 FINISHED Renold Parts Renold Ajax #1 "S", Type S Forged Steel, Pin & Bushed Flexible Coupling. Finished Bore & Keyway to your specifications.. Fail safe design. Cushions vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float 
Dated 1-20
- 0 0.00 516.86
REN-S COUPLING 1-1/2 FINISHED Renold Parts Renold Ajax #1-1/2 "S" 
Part S Coupling 1-1/2 Finished 
Type S Forged Steel, Pin & Bushed Flexible Coupling 
Finished Bore & Keyway to your specifications 
Fail safe design 
Cushions vibration and shock 
No lubrication required 
Operates horizontally or vertically 
Permits free end float 
Ships in 
Dated 1-20 
(16LBS)
- 0 0.00 578.57
REN-S COUPLING 1-1/2 STOCK BORE Renold Parts Renold Ajax Coupling 
Part S Coupling 1-1/2 Stock Bore 
Pin & Bushing Style Flexible Coupling 
Type "S" Machined from Forged Steel 
Size 1- 1/2 "S" 
Rough / Stock Bore, NOT Finished 
Maximum Bore Diameter of 1.62 Inches 
Fail safe design that cushions both vibration and shock 
No lubrication required 
Operates horizontally or vertically 
Permits free end float 
Has Qty 8 Size 4, Studs & Urethane Bushings 
Ships in 
Dated 1-20 
(1
- 4 0.00 438.17
REN-S COUPLING 2 FINISHED Renold Parts Renold Ajax # 2 Forged Steel Pin & Bush Coupling with a Finished Straight Bore, Keyway & Set Screw. 2.00 Inch Maximum finished bore. Maximum + or - 1/2 degree angular misalignment capacity. 3600 Maximum R.P.M. 12.5 Maximum, H.P. @ 100 RPM 6.12 Inch Diameter. 4.62 Overall length. Fail safe design. Cushings vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Qty. 12 Size #4.5 studs - 0 0.00 729.77
REN-S COUPLING 2 1/2 FINISHED Renold Parts Renold Ajax # 2 1/2 Forged Steel Pin & Bush Coupling with a Finished Straight Bore, Keyway & Set Screw. 2.50 Inch Maximum finished bore. Maximum + or - 1/2 degree angular misalignment capacity. 3600 Maximum R.P.M. 17.5 Maximum, H.P. @ 100 RPM 7.25 Inch Diameter. 5.12 Overall length. Fail safe design. Cushings vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Qty. 12 Size #5 Stu - 0 0.00 1,180.29
REN-S COUPLING 2 1/2 ROUGH Renold Parts Renold Ajax # 2 1/2 Forged Steel Pin & Bush Coupling with a Rough Bore, Keyway & Set Screw. 2.50 Inch Maximum finished bore. Maximum + or - 1/2 degree angular misalignment capacity. 3600 Maximum R.P.M. 17.5 Maximum, H.P. @ 100 RPM 7.25 Inch Diameter. 5.12 Overall length. Fail safe design. Cushings vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Qty. 12 Size #5 Studs & Bushing - 0 0.00 1,180.29
REN-S COUPLING 3 STOCK BOR Renold Parts Renold Ajax # 3 Forged Steel Pin & Bush Coupling with a Rough Bore, Keyway & Set Screw. 2.50 Inch Maximum finished bore. Maximum + or - 1/2 degree angular misalignment capacity. 3600 Maximum R.P.M. 17.5 Maximum, H.P. @ 100 RPM 7.25 Inch Diameter. 5.12 Overall length. Fail safe design. Cushings vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Qty. 12 Size #5 Studs & Bushings. S - 0 0.00 1,080.00
REN-S COUPLING 3-1/2 FINISHED Renold Parts Renold Ajax #3-1/2 "S", Type S Forged Steel, Pin & Bushed Flexible Coupling with a finished bore & keyway. Fail safe design. Cushions vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float 
Ships in 
Dated 1-20
- 0 0.00 2,090.57
REN-S COUPLING 3-1/2 STOCK BOR Renold Parts Renold Ajax #3-1/2 "S", Type S Forged Steel, Pin & Bushed Flexible Coupling. Stock Bore. Fail safe design. Cushions vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float 
Ships in 
Dated 1-20
- 0 0.00 1,649.31
REN-S COUPLING 4 FINISHED Renold Parts Renold Ajax Coupling #4 "S 
Part Coupling 4 Finished 
Type S Forged Steel, Pin & Bushed Flexible Coupling 
With a finished bore & keyway 
Fail safe design 
Cushions vibration and shock 
No lubrication required 
Operates horizontally or vertically 
Permits free end float 
Ships in 
Dated 1-20
- 0 0.00 2,982.34
REN-STUD-3 Renold Parts Renold Ajax Stud Assembly 
Part Stud-3 
#3 Stud Assembly 
For Obsolete Couplings "A" 0.75A, 1.5A & 1.75A 
For Obsolete Coupling 400 
High Tensile Alloy Steel 
1.375 Inch Overall Length 
0.4375 Inch Shaft Diameter 
0.3125 Inch Thread Diameter 
Dated 11-2021 
(1LBS) H 4" L 5" W 4" Box
- 0 0.00 37.14
REN-STUD-4 Renold Parts Renold Ajax Stud Assembly 
Part Stud-4 
#4 Stud Assembly 
For Coupling "PB" 1PB 
For Coupling "S" 1S 
For Obsolete Couplings "A" 1A, 1.25 
For Obsolete Coupling 417 
High Tensile Alloy Steel 
1.781 Inch Overall Length 
0.5625 Inch Shaft Diameter 
0.357 Inch Thread Diameter 
6 or 8 per Coupling 
Dated 11-2021 
(1LB) H 4" L 5" W 4" Box
- 0 0.00 48.57
REN-STUD-4.5 Renold Parts Renold Ajax Stud Assembly 
Part Stud 4.5 
#4.5 Stud Assembly: Pin, Nut & Lockwasher  
For Coupling "S" 1.5S & 2S 
For Obsolete Couplings "A" 1A, 1.25 
For Obsolete Coupling 422 
High Tensile Alloy Steel 
2.3125 Inch Overall Length 
0.625 Inch Shaft Diameter 
0.325 Inch Thread Diameter 
8 or 12 per Coupling 
Used with Bushing 4.5 
Normally a Stock Item @ BPI 
Ships from Stock to 1 Week 
Dated 11-2021 
(1LBS) H 4" L 5" W 4" Box
- 0 0.00 54.29
REN-STUD-5 Renold Parts Renold Ajax Stud Assembly 
Part Stud- 5 
Item 10130557 
#5 Stud Assembly 
For Cast Iron Coupling "PB" 1.5PB 
For Steel Couplings " S", 2S & 2.5S 
For Obsolete Couplings "A" 1.375A, 1.5A & 1.75A 
For Obsolete Coupling 427 
High Tensile Alloy Steel 
2.53 Inch Overall Length 
0.75 Inch Shaft Diameter 
0.50 Inch Thread Diameter 
Includes Stud, Nut & Lockwasher 
4, 6 or 12 Studs per Coupling 
Normally a Stock Item @ BPI 
Ships from Stock to 3 Weeks 
Dated 09-2022 
(1LBS) H 4" L 5" W 4" Box
- 63 0.00 54.29
REN-STUD-6 Renold Parts Renold Ajax Stud Assembly 
Part Stud-6 
aka 1651-0600-001 
#6 Stud Assembly 
For Cast Iron Coupling "PB" 2PB 
For Steel Coupling "S" 3S 
For Obsolete Couplings "A" 1A, 1.25 
For Obsolete Coupling "A" 2.375A 
High Tensile Alloy Steel 
3.031 Inch Overall Length 
0.8125 Inch Shaft Diameter 
0.5625 Inch Thread Diameter 
Dated 08-2024 
(1LB) H 4" L 5" W 4" Box
- 86 0.00 47.14
REN-STUD-7 Renold Parts Renold Ajax Stud Assembly #7 
Part Stud 7 
Item 10131396 
#7 Stud Assembly 
For Cast Iron Coupling "PB" 2.5,3, 3.5PB 
For Steel Couplings "S" 3.5S 
For Obsolete Couplings "A" 2.75, 1.25 
For Obsolete Coupling "A" 2.375A, 3.125A 
High Tensile Alloy Steel 
3.531 Inch Overall Length 
0.875 Inch Shaft Diameter 
0.625 Inch Thread Diameter 
Origin USA 
Export Code 10131396 
Normally a Stock Item @ BPI 
Ships from Stock to 2 Weeks 
Dated 03-2025 
(2LBS) H 4" L 5" W 4" Box
- 40 0.00 148.58
REN-STUD-8 Renold Parts Renold Ajax Stud Assembly 
Part Stud #8 
#8 Stud Assembly 
For Cast Iron Coupling "PB" 4PB 
For Steel Couplings "S" 4S 
For Obsolete Couplings "A" 3.625, 4, 4.5, 5, 5.5A 
High Tensile Alloy Steel 
4.0312 Inch Overall Length 
1.00 Inch Shaft Diameter 
0.750 Inch Thread Diameter 
Dated 11-2021
- 30 0.00 108.57
REN-STUD-9 Renold Parts Renold Ajax Stud Assembly 
Part Stud #9 
#9 Stud Assembly 
For Steel Couplings "S" 4.5S 
For Obsolete Couplings "A" 6A 
High Tensile Alloy Steel 
5.166 Inch Overall Length 
1.125 Inch Shaft Diameter 
0.875 Inch Thread Diameter 
Dated 11-2021 
(2LBs) H 4" L 6" W 4" Box
- 0 0.00 233.47
REP- Brake Parts Brake Coil  
Part  
aka 9-885-27 
Series Wound Coil  
For a 19 Inch GH505 DC Brake 
Brake Suffix 1507 
aka Old # 9-841-5 
Ships in 
Dated
- 0 0.00 2,451.60
REP-100100 Brake Parts Brake Shoe Assembly 10" WB 
Part 100100 
aka W-10004-A 
For a Class 5010, 10 Inch, Type WB Folio 5 
With Premium Non-Asbestos Lining Material 
2 per brake, sold each 
THIS IS A NON-OEM, AFTERMARKET PART 
Ships in 45 Days 
Dated 05-2023 
(8LBS)
- 2 0.00 496.60
Prices are subject to change without notice. Last updated: 03-Sep-2025 06:58:50 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.
 
 
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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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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
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