RENOLD 406 part numbers: Mechanical Power Transmission Products
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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.
Superbolt products are an innovative technology for tightening large bolts & studs. MJTs have been proven and established as a preferred solution
for bolting in every major industry, all over the world.
Superbolt tensioners offer you simple and cost effective tightening of large size bolts. Your joints can be tightened with high accuracy without
requiring specialized skills or heavy tooling. MJTs ensures a profitable life cycle cost by improving the bolt design for OEM manufacturers,
ensuring reliable operation and by facilitating maintenance procedures.
MT - Standard tensioner
Nut-style multi-jackbolt tensioners (MJTs) are an innovative bolting product that will eliminate expensive and dangerous tooling.
Only hand/air tools are required to install or remove any size MJT.
Description:
MT tensioners are used on general mechanical applications. They can be used on high or medium strength bolts and studs and will fit in the
same area as a heavy hex nut. The MT series features hex-head jackbolts.
Selection Guide:
• MT - Standard nut-style tensioner
• Dimension range: M16-M160 (3/4" - 6")
• Approx. bolt stress depending on size: 450 to 700 N/mm2 (60 to 100 ksi)
• Temperature range: -10 to 250oC (0 to 500oF)
• Surface treatment: optional
• Notes: Equivalent bolt-style tensioner is SB8
Nut-style multi-jackbolt tensioners (MJTs) are an innovative bolting product that will eliminate expensive and dangerous tooling.
Only hand/air tools are required to install or remove any size MJT.
Description:
CY series tensioners are used for higher bolt loads on general machinery applications. They fit in the same area as a heavy hex nut.
Selection Guide:
• CY - High strength nut-style tensioner
• Dimension range: M16-M160 (3/4" - 6")
• Approx. bolt stress depending on size: 500 to 900 N/mm2 (70 to 130 ksi)
• Temperature range: -40 to 250oC (-50 to 500oF)
• Surface treatment: optional
• Application samples: Bolting applications in demanding industries
• Notes: Equivalent bolt-style tensioner is SB12
H650 - Medium temperature tensioner
Nut-style multi-jackbolt tensioners (MJTs) are an innovative bolting product that will eliminate expensive and dangerous tooling.
Only hand/air tools are required to install or remove any size MJT.
Description:
H650 tensioners are used for medium temperature, pressure vessel applications on A193-B7 bolts and studs. Material certification provided
upon request. Preload and torque values are based on 45,000 psi bolt stress, the value most commonly used by pressure vessel designers.
Depending on operating temperature, jackbolt torque and preload may be increased. Used with graphite Lubricant.
Selection Guide:
• H650 - Medium temperature tensioner
• Dimension range: M20-M125 (3/4" - 5")
• Approx. bolt stress depending on size: 310 N/mm2 (45 ksi)
• Temperature range: up to 350oC (up to 650oF)
• Surface treatment: optional
• Application examples: Large studs on boiler feed pumps, boiler circulating pumps, reactors, heat exchangers, etc.
H650T - Medium temperature, tall tensioner
Nut-style multi-jackbolt tensioners (MJTs) are an innovative bolting product that will eliminate expensive and dangerous tooling.
Only hand/air tools are required to install or remove any size MJT.
Description:
H650T tensioners replace "acorn" and "castle" nuts and are intended for use where space is limited. They are lubricated
with JL-G graphite lubricant.
Selection Guide:
• H650T - Medium temperature, tall
• Dimension range: M24-M100 (1" - 4")
• Approx. bolt stress depending on size: 310 N/mm2 (45 ksi)
• Temperature range: up to 350oC (up to 650oF)
• Surface treatment: optional
• Application examples: split lines on turbines, engines, pumps, compressors, etc.
• Note: Also for applications with limited space in diameter
SJ tensioner - compact
Nut style Multi-jackbolt tensioners (MJTs) are an innovative bolting product that will eliminate expensive and dangerous tooling.
Only hand/air tools are required to install or remove any size MJT.
Description:
SJX Jamnuts are used for applications where limited headroom and/or limited thread engagement are required. On request jamnuts are available
with Superbolt's® proprietary captive set screws.
Selection Guide:
• SJ - Compact
• Dimension range: M20-M160 (3/4" - 6")
• Approx. bolt stress depending on size: 250 to 400 N/mm2 (35 to 60 ksi)
• Temperature range: -10 to 250oC (0 to 500oF)
• Surface treatment: optional
• Application examples: limited height such as hydraulic cylinders, shaft mounts, piston connections, foundations, etc.
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:
What is the application?
What is the required preload or what are they currently torqueing the nuts to?
What is the operating temperature?
Are there any space limitations?
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.
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.
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 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 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 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.
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
