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  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-MB-23666-M Renold Parts Renold Special Size 3 - 1/2 Rigid Half per PMC Drawing MB-23655 10/9 - 0 0.00 848.88
REN-MB-7936-M Renold Parts Renold Special Size 4 O-Ring Seal Coupling Half - 0 0.00 2,145.96
REN-PB 2 ROUGH Renold Parts Renold Ajax Coupling PB 
1602 Pin & Flexible Bushing Coupling 
Size 2 
With a Pilot / Rough Bore 
2.56 Inch Maximum Straight Bore 
Urethane Bushings 
Cast Iron Body  
Options include: 
Finished Machined Bore, Keyway & Setscrew 
Neoprene Bronze Bushings 
Extra Keyway & Setscrew 
Dated 1-20 
(48LBS)
- 1 0.00 1,022.92
REN-PB 2 S FINISHED Renold Parts Renold Ajax # 2S, Type S Forged Steel, Pin & Bushed Flexible Coupling with a finished bore & keyway. Fail safe design. Angular misalignment + or - 1/2 degree. Cushions vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Can be finished with bore & keyway machined to your requirements at additional cost 
Dated 1-20 
(22LBS)
- 0 0.00 729.77
REN-PB 2 S ROUGH Renold Parts Renold Ajax # 2S, Type S Forged Steel, Pin & Bushed Flexible Coupling. Rough Stock Bore. Fail safe design. Angular misalignment + or - 1/2 degree. Cushions vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Can be finished with bore & keyway machined to your requirements at additional cost 
Dated 1-20 
(22LBS)
- 0 0.00 729.77
REN-PB 2-1/2 FINISHED Renold Parts Renold Ajax Coupling PB 
1602 Pin & Bushed Flexible Coupling 
Size 2-1/2 
With a Straight Bore, Keyway & Setscrew 
Urethane Bushings 
Options include: 
Neoprene Bronze Bushings 
Extra Keyway & Setscrew 
Dated 1-20
- 0 0.00 884.06
REN-PB 2-1/2 ROUGH Renold Parts Renold Ajax Coupling PB 
1602 Pin & Bushed Flexible Coupling 
Size 2-1/2 
With a Pilot / Rough Bore 
Urethane Bushings 
Options include: 
Finished Machined Bore, Keyway & Setscrew 
Neoprene Bronze Bushings 
Extra Keyway & Setscrew 
Dated 1-20
- 0 0.00 654.17
REN-PB 3 ROUGH Renold Parts Renold Ajax #3, Type PB, Pin & Bushed Flexible Coupling. Rough Stock Bore. Fail safe design. Angular misalignment + or - 1/2 degree. Cushions vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Can be finished with bore & keyway machined to your requirements at additional cost 
Dated 1-20
- 0 0.00 876.34
REN-PB 3-1/2 ROUGH Renold Parts Renold Ajax #3-1/2, Type PB, Pin & Bushed Flexible Coupling. Rough Stock Bore. Fail safe design. Angular misalignment + or - 1/2 degree. Cushions vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Can be finished with bore & keyway machined to your requirements at additional cost. 
Dated 1-20
- 0 0.00 1,160.23
REN-PB 4 ROUGH Renold Parts Renold Ajax PB Coupling # 4 
Part PB 4 Rough 
Pin & Bushed Flexible Coupling 
Rough Stock Bore 
Fail safe design 
Angular misalignment + or - 1/2 degree 
Cushions vibration and shock 
No lubrication required 
Operates horizontally or vertically 
Permits free end float 
Can be finished with bore & keyway machined to your requirements at additional cost 
Dated 1-20
- 0 0.00 1,710.45
REN-PB 4-1/2 S Renold Parts Renold Ajax #4-1/2 "S", Type S Forged Steel 
Pin & Bushing Flexible Coupling 
Pilot / Stock Bore 
Fail safe design 
Cushions vibration and shock 
No lubrication required 
Operates horizontally or vertically 
Permits free end float 
Dated 1-19 
(220LBS)
- 0 0.00 9,058.50
REN-PB 4-1/2 S FINISHED Renold Parts Renold Ajax #4-1/2 "S", Type S Forged Steel 
Pin & Bushing Flexible Coupling 
Finished Straight Bore, Keyway and set screw 
Finish Machine to your specifications 
Fail safe design 
Cushions vibration and shock 
No lubrication required 
Operates horizontally or vertically 
Permits free end float 
Dated 1-19 
(210LBS)
- 0 0.00 9,612.00
REN-PB 5 S FINISHED Renold Parts Renold Ajax #5 "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. Maximum bore 5 inch. Includes all required fasteners & urethane bushings 276 LBS Gross with Wooden box 
Dated 1-19
- 0 0.00 7,588.83
REN-PB COUPLING 1-1/2 FINISHED Renold Parts Renold Ajax Cast Iron Pin & Bush Coupling. Bored & keyed to your exact requirements. 1.88 Maximum finished bore. Maximum + or - 1/2 degree angular misalignment capacity. 3600 Maximum R.P.M. 7.1 Maximum, H.P. @ 100 RPM 6.56 Inch diameter. 4.50 Overall length. Fail safe design. Cushings vibration and shock. No lubrication required. Operates horizontally or vertically. Permits free end float. Qty. 6, Size #5 studs & bushings. Supplied w - 0 0.00 410.40
REN-PB COUPLING 2 1/2 FINISHED Renold Parts Renold Ajax Pin & Bushing Coupling 1/2 
Cast Iron, Finished 
2PB 1/2 Coupling 
Part 627.286653 
Finished Machined Bore & Keyway 
To your dimensions 
Maximum Bore 3.25 Inch 
Maximum RPM 2700 
Maximum H.P. @ 100 RPM 28.6 
Maximum Torque LB. - Inch X 10 to the 3rd power 18.0 
Ships in 3 Months, NY Westfield 
Dated 05-2023
- 0 0.00 1,125.71
REN-PB COUPLING 2 FINISHED Renold Parts Renold Ajax Cast Iron Pin & Bushing type Coupling. Finished machined bore & keyway to your dimensions, Maximum Bore 2.56 Inch, Maximum RPM 3200, Maximum H.P. @ 100 RPM. 17.5, Maximum Torque LB. - Inch X 10 to the 3rd power 11.0, 46 LBS Gross.\ 
Dated 1-20
- 0 0.00 597.09
REN-PB COUPLING 3 FINISHED Renold Parts Renold Ajax Cast Iron Pin & Bushing type Coupling. Finished machined bore & keyway to your dimensions, Maximum Bore 4.00 Inch, Maximum RPM 2000, Maximum H.P. @ 100 RPM. 61.9, Maximum Torque LB. - Inch X 10 to the 3rd power 39.0, 202 LBS Gross 
Dated 1-20
- 0 0.00 1,177.20
REN-RA2.5PB Renold Parts Renold Ajax Model 2 1/2 PB coupling which is the current model replacing 562360. Note that some minor dimensional changes may have been made. - 0 0.00 611.28
REN-RAS6NB Renold Parts Renold Ajax Size 6 Neoprene Bronze Bushing for 2 3/8" A dimension coupling. Ref: 562360. - 0 0.00 30.61
REN-RENOLD AJAX Renold Parts Renold Ajax product - 0 0.00 Call N/A
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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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.
 
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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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