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jbj Techniques Limited
PUMP DRIVE COMPONENTS

PUMP DRIVE COMPONENTS

Product catalog summary

Introduction
This document is a technical catalogue from jbj Techniques Limited, providing detailed information on various pump drive components, including anti-vibration components, coupling types, and related products.

Specifications and Components

Anti-Vibration/Noise Reduction Components: These components, such as damping rods, flanges, and rings, are designed to minimize noise and vibration in hydraulic power units. They are resistant to mineral oils and can withstand temperatures up to +80°C.
Spidex Couplings: These torsional flexible shaft couplings ensure smooth power transmission without torsional oscillation. Made from Simirit-Polyurethane, they resist hydrolysis, oil, and ozone, and operate between -40°C and +100°C.
Hub Combinations: Available in various combinations (A/A, A/B, B/B), these hubs are made from materials like die-cast aluminium, cast iron, and steel, designed for easy disassembly and compliance with ISO and DIN standards.
CJ Series Couplings: This series includes models like CJDB, CJSB, and CJLFH, each with specific material compositions and design features for different applications.
G Series Couplings: Made from light alloy, these couplings are available in different torque ratings for various mechanical applications.

Standards and Certifications
jbj Techniques Limited is ISO certified and offers products that meet ATEX certification requirements, ensuring compliance with international industrial standards.

Introduction to Spidex® NBL Coupling
The NBL series curved jaw coupling is designed for zero backlash in a 3-piece assembly, suitable for precision applications. It features a straight center spider tooth for higher stiffness and allows for misalignment with its crowned spider legs. The coupling supports blind assembly in tight spaces and offers electrical isolation when properly installed. Spiders are available in four shore hardnesses to meet various vibratory and torque requirements.

Applications

Measurement and Control Systems: Provides zero backlash and accuracy due to torsional stiffness.
Servo and Positioning Drives: Offers flexible, zero backlash connections with damping capabilities.
Main Spindle Drives: Handles torque spikes and cyclical loading by damping or shifting vibratory frequencies.

Service Factors and Calculations
Includes formulas for calculating nominal and peak torque, considering factors like temperature and torsional stiffness. Proper torque checks ensure compatibility with application requirements.

Misalignment Handling
The NBL coupling accommodates axial, angular, and radial misalignments while maintaining zero backlash. Each type of misalignment is defined, and the coupling's ability to handle them is highlighted.

Dentex® Coupling Overview
The Dentex® coupling features flexible gear coupling with crowned teeth for torque transmission. It compensates for radial, angular, and axial displacements, reducing additional bearing loads. The coupling is maintenance-free due to its steel/plastic combination and operates reliably between -25°C to +80°C.

Assembly Instructions
Proper assembly is crucial for performance, with specific dimensions and standards outlined for optimal operation. The Dentex® FL coupling is designed for diesel engine drives, offering keyed connections and non-critical service due to its stiffness.

Bellhousing and Noise Reduction
Monobloc bellhousing systems with integrated noise damping are discussed, highlighting their ability to reduce noise and vibration in hydraulic units. The design improves stiffness and service life of drive couplings, with noise reduction ranging from 3 dB(a) to over 10 dB(a) depending on pump noise levels.

Pump Drive Components

Cooler Bellhousings Series KPV: Designed for nominal rotation of 1500 rev/min. Noise levels vary based on the electric motor used. Pump rotation is clockwise.
Foot Brackets: Made from cast aluminium, available in various sizes and weights, suitable for different motor series.

Petrol Engine Adaptors
Adaptors are available for various engine brands and can be machined to fit most hydraulic pump mountings.

Mechanical Power Transmission Couplings
Offers a wide range of couplings including gear, flexible spider, and torque limiting couplings. Customization options are available.

Company Overview

JBJ Techniques provides a comprehensive range of mechanical and fluid power products, with a focus on high-quality service and customer satisfaction.
The company is ISO certified and offers products that meet ATEX certification requirements.

Catalog excerpts

PUMP DRIVE COMPONENTS Quality Products for Mechanical & Fluid Power

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an excellence in engineering www.jbj.co.uk/couplingelementchart.html Coupling Element Size Selection Chart Telephone: 01737 767493 or ﬁll in this form for a complimentary chart. Coupling Element Size Comparison Chart (up to Spidex S/CJ125 & Dentex B80) Simply size your coupling, decide the shore hardness colour and contact us immediately. This ‘Pump Drive Component’ catalogue provides technical speciﬁcations, power, torque, speeds & other selection data. When your coupling element should look like this but actually looks like this you can size the element using our chart with just a fraction...

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CONTENTS quality products for mechanical & fluid power Anti-vibration / noise reduction components Spidex couplings CJ series couplings G series couplings Dentex® couplings Spidex® non backlash coupling Dentex "fl" engine drive couplings Splined bushes Popular pump flange details Popular machining codes Cooler bellhousings series KPV P series foot brackets PTFL & PTFS foot brackets Foot brackets/mounting plates

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Pump Drive Components Anti-Vibration/Noise Reduction Mountings Damping Rods For MDL 80, 90S, 90L remove grey shaded area.

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Pump Drive Components Anti-Vibration/Noise Reduction Mountings for noise reduction of hydraulic power units Damping flanges For use in combination with Raja bellhousings between electric motor and hydraulic pump. They consist of two aluminium parts which are connected by a rubber coat (Nitrile) without any metal connection. They are resistant against mineral oils and suitable for working temperatures up to +80 oC, for short time +100 oC. The possible noise reduction will be approx. 3 - 8 db(A). Damping flanges are available in two degrees of hardness with the description N - normal / H - hard....

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Pump Drive Components Anti-Vibration/Noise Reduction Mountings for noise reduction of hydraulic power units Damping rings For use when vertical mounting (VI-construction) between bellhousing and tank lid or horizontal (B5-construction) mounting position between motor and bellhousing flange. They consist of two reinforced aluminium rings which are connected by a rubber coat without any metal connection. The used materials (Nitrile) are resistant against mineral oils and suitable for working temperatures up to +80 oC. The possible noise reduction will be approx. 3 - 5 db(A). Permissible radial...

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Introduction to the Spidex® Coupling Pump Drive Components Spidex couplings are torsional flexible shaft couplings, the operating characteristics of which are two hubs with concave claws, transmitting the torque by meshing with an elastic involute gear ring. The coupling concept gives a reliable, smooth power transmission without torsional oscillation and thus protects the connected machines. Due to the complete flexibility and ductility of the elastomer ring, it compensates for parallel and angular displacements as well as to absorb longitudinal movements of the shafts. The involute teeth of...

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Pump Drive Components Torque Ratings for the Spidex® Coupling

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Pump Drive Components A/A Hub Combination Standard Coupling Material: Die cast aluminium Material: cast iron = GG; SG iron = GGG; steel = ST; SINT. = Sintered Steel H* is the minimum dimension required for the disassembly of the components in the radial direction. Finish bore acc. to ISO standard H7, keyway acc. to DIN 6885, sheet 1 (JS9). Weight and moment of inertia in relation to the materials Al/GG/GGG with max. diameter without keyway.

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Pump Drive Components A/B Hub Combination Standard Coupling Material: Die cast aluminium Material: cast iron = GG; SG iron = GGG; steel = ST & SINT. = Sintered Steel H* is the minimum dimension required for the disassembly of the components in the radial direction. Finish bore acc. to ISO standard H7, keyway acc. to DIN 6885, sheet 1 (JS9). Weight and moment of inertia in relation to the materials Al/GG/GGG with max. diameter without keyway.

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Pump Drive Components B/B Hub Combination Standard Coupling Material: Die cast aluminium Material: cast iron = GG; SG iron = GGG; steel = ST & SINT. * Hubs only available in GGG ** Hubs only available in steel H* is the minimum dimension required for the disassembly of the components in the radial direction. Finish bore acc. to ISO standard H7, keyway acc. to DIN 6885, sheet 1 (JS9). Weight and moment of inertia in relation to the materials Al/GG/GGG with max. diameter without keyway.

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Pump Drive Components Hub Designs for the Spidex® Coupling

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Spidex® Special Bores Pump Drive Components

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Pump Drive Components CJDB Couplings

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Pump Drive Components CJSB Couplings Flange is available in steel only.

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Pump Drive Components CJLFH Couplings Alternative flange machining available on request. Material: SNT, GG, GGG, ST * Hubs only available in GGG ** Hubs only available in steel

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Pump Drive Components CJSFH Couplings Alternative flange machining available on request. Material: SNT, GG, GGG, ST * Hubs only available in GGG ** Hubs only available in steel

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Pump Drive Components CJDLF Couplings Alternative flange machining available on request. Material: GG (Cast Iron)

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Pump Drive Components CJDSF Couplings Flange to flange design available for applications requiring space saving, compact connections. Shaft to flange design is also available for special application situations requiring an alternative connection.

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Pump Drive Components CJSPC Couplings 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 Hubs available in aluminium, sintered iron and steel. Spacer style features an aluminium spacer piece. Comes with two inserts to increase damping and parallel misalignment capabilities.

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Pump Drive Components Material : Light Alloy

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Pump Drive Components Material : Light Alloy

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Pump Drive Components Material : Light Alloy

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Pump Drive Components Material : Light Alloy

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Pump Drive Components Introduction to the Spidex® NBL Coupling The NBL series curved jaw coupling offers zero backlash capability in a 3-piece design. The coupling is provided assembled under preload. The NBL series can be used in a variety of different applications requiring precision and accuracy. The NBL series spider features a straight centre of the spider tooth, providing higher stiffness due to coupling preload. The crowning of the ends of the spider legs allows for misalignment, while the curved jaws and solid spider centre provide high-speed capability. The jaws of the hubs and the spider...

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PUMP DRIVE COMPONENTS

PUMP DRIVE COMPONENTS

Catalog excerpts

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