Tolerance Rings
Tolerance rings allow looser tolerances for assembly of parts such as bearings, pulleys and gears.
Allows looser tolerances of components. Ideal for mounting ball bearings. Useful for salvaging worn parts. Permits low cost assembly by eliminating the need for conventional fasteners. Use Torque Transfer figures for gears and pulleys. Non torque transfer figures are for bearing applications.
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Washers Flat Metallic
Precision Tolerances. Standard and laminated brass shim washers.
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Precision Tolerances.
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Precision Tolerances.
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Couplings Other
0.71 to 1.27 Nm.
303 stainless steel with 73 durometer neoprene centre. Shaft to shaft insulation. Torsional vibration isolation. Ribbed style are more flexible than smooth style. Bore Tolerances: +0.025 / -0.000.
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Magnets Ceramic
Low cost, light weight, high energy material
Non conductive hard brittle material. Performs best at temperatures below 249 oC. Can be cut with a diamond wheel. Difficult to grind and can't be machined or drilled by normal methods. Tolerance 0.13mm on all dimensions.
Shim
Used for close spacing and extremely tight tolerance situation.
Rc45-55 hardness. 300 grade stainless. Short flat lengths have rounded ends and are marked for size. Coiled lengths are etched every 6 inches and can be easily cut to length. 12.7mm wide.
Balls Metallic
Extreme hardness and wear resistance.
Tolerances available on request. Grades shown are AFBMA / ISO3290-1. Precision Grade: Grade 25. Hardness: Rockwell A: 91.5 (Approx 77 Rockwell C). Extreme hardness and wear resistance. Specific Gravity: 14.95.
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Balls Plastic
Excellent for liquid level float applications.
Tolerance and sphericity: up to and including 25.4mm diameter = + / -0.0508mm, over 25.4mm diameter +/-0.0762mm. Very resistant to most acids and alkalies. Excellent for liquid level float applications. Unpolished. Specific Gravity: 0.91.
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Shim
Used for close spacing and extremely tight tolerance situation.
Rc48-62 hardness. High carbon steel. Short flat lengths have rounded ends and are marked for size. Coiled lengths are etched every 6 inches and can be easily cut to length. 12.7mm wide.
Bushes Plastic
General purpose maintenance free dry running.
Specific Gravity 1.45 g/cm3. Operating Temp 220 C short term / 130 C long term. Tensile Strength at 20 oC 210 Mpa. Hardness 81 Shore D (DIN53505). Bushing bore tolerance is E10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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General purpose maintenance free dry running.
Specific Gravity 1.45 g/cm3. Operating Temp 220 C short term / 130 C long term. Tensile Strength at 20 oC 210 Mpa. Hardness 81 Shore D (DIN53505). Bushing bore tolerance is E10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Clamps
Commercial - Precision - Stainless - Aluminium - Carbon Steel - For clamp type gears.
Precision Type : Height and Clearance Radii Tolerances +/- 0.397. Precision Type : All other dimensional tolerances except ID +/-0.127. Commercial Type : Height and Clearance Radii Tolerances +/- 0.794. Commercial Type : All other dimensional tolerances except ID +/-0.254. ID Tolerances - Refer to table.
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Balls Plastic
Resists alkalies, weak acids and most organic solvents.
Tolerances available on request. Nylon (Polyamide 6/6). Resists alkalies, weak acids and most organic solvents. Low water absorption. Unpolished. Specific Gravity: 1.14.
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Bushes Plastic
For impact resistance vibration dampening unclean environments.
Specific Gravity 1.14 g/cm3. Operating Temp 170 C short term / 80 C long term. Tensile Strength at 20 oC = 112 Mpa. Hardness 79 Shore D (DIN53505). Bushing bore tolerance is D11 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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For impact resistance vibration dampening unclean environments.
Specific Gravity 1.14 g/cm3. Operating Temp 170 C short term / 80 C long term. Tensile Strength at 20 oC = 112 Mpa. Hardness 79 Shore D (DIN53505). Bushing bore tolerance is D11 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Clamps
Commercial - Precision - Stainless - Aluminium - Carbon Steel - For clamp type gears.
Precision Type : Height and Clearance Radii Tolerances +/- 0.397. Precision Type : All other dimensional tolerances except ID +/-0.127. Commercial Type : Height and Clearance Radii Tolerances +/- 0.794. Commercial Type : All other dimensional tolerances except ID +/-0.254. ID Tolerances - Refer to table.
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Shafting Precision Ground
Titanium shafting available in oversized and undersized tolerances
Used in critical aircraft structural components. UNS R56400. Composition Percentage: Al 5.5-6.75, V 3.5-4.5, N 0.05, C 0.08, H 0.015, Fe 0.40, O 0.2, Ti Balance. Grade 5, 6Al-4V, TC4 is a high strength titanium alloy. Tensile Strength 91.5kgf / mm2. Yield Strength 84.5kgf / mm2. Elongation 10 Percent. Shaft with undersized tolerances is suitable for use with precision ground bearings wih inner rings. HRC 36. Surface Finish Ra 0.8-1.6 um. Not suitable for running needle bearings directly. Shaft with oversized tolerances is suitable for pulleys or gears requiring interference fits, or for machining to your required tolerances.
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Balls Plastic
Resistance to weather and sunlight. Good abrasion resistance.
Diametrical tolerances typically + / - 0.08 or 0.13 mm depending on size. Acrylic (Methyl Methacrylate). Resistance to weather and sunlight. Good abrasion resistance. Water clear transparent. Polished. Ground and Polished.
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No water absorption. Temperatures up to 288 Deg C.
Tolerances available on request. Not affected by any known acids or alkalies. No water absorption. Temperatures up to 288 oC. Unpolished. Specific Gravity: 2.3.
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Bushes Plastic
Low Wear - Dry Running - Vibration Dampening - Chemical Resistance.
Specific Gravity 1.49 g/cm3. Operating Temp 120 C short term / 90 C long term. Tensile Strength at 20 oC = 73 Mpa. Hardness 74 Shore D (DIN53505). Bushing bore tolerance is E10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Low Wear - Dry Running - Vibration Dampening - Chemical Resistance.
Specific Gravity 1.49 g/cm3. Operating Temp 120 C short term / 90 C long term. Tensile Strength at 20 oC = 73 Mpa. Hardness 74 Shore D (DIN53505). Bushing bore tolerance is E10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Balls Ceramic
Extreme hardness, wear resistance, non-corrosiveness and chemical inertness.
Tolerances available on request. Grades shown are AFBMA / ISO3290-1. Grade 25. Extreme hardness, wear resistance, non-corrosiveness and chemical inertness. High mechanical strength. Specific Gravity: 3.98.
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Bushes Plastic
Excellent wear resistance under high load. Resistant to dirt.
Specific Gravity 1.40 g/cm3. Operating Temp 155 C short term / 135 C long term. Tensile Strength at 20 oC = 120 Mpa. Hardness 83 Shore D (DIN53505). Bushing bore tolerance is E10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Balls Ceramic
Extreme hardness, wear resistance, non-corrosiveness and chemical inertness.
Tolerances available on request. Grades shown are AFBMA / ISO3290-1. Specific Gravity: 3.98. Grade 25. Extreme hardness, wear resistance, non-corrosiveness and chemical inertness. High mechanical strength. Transparent (refractive index 1.76).
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Balls Plastic
High intensity strength, rigidity, outstanding resistance to abrasion and most solvents.
Tolerances available on request. Acetal Copolymer. High intensity strength, rigidity, outstanding resistance to abrasion and most solvents. Standard Opaque White. Specific Gravity: 1.4.
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Bushes Plastic
Electrically conductive. High Compressive Strength. High Temp. Resistant to Chemicals.
Specific Gravity 1.25 g/cm3. Operating Temp 180 C short term / 140 C long term. Tensile Strength at 20 oC = 260 Mpa. Hardness 84 Shore D (DIN53505). Bushing bore tolerance is D11 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Low co-efficient of friction. High wear resistance. Chemical resistant.
Specific Gravity 1.24 g/cm3. Operating Temp 180 C short term / 90 C long term. Tensile Strength at 20 oC = 125 Mpa. Hardness 77 Shore D (DIN53505). Bushing bore tolerance is E10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Low co-efficient of friction. High wear resistance. Chemical resistant.
Specific Gravity 1.24 g/cm3. Operating Temp 180 C short term / 90 C long term. Tensile Strength at 20 oC = 125 Mpa. Hardness 77 Shore D (DIN53505). Bushing bore tolerance is E10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Linear Bearings
Standard closed type to run on standard 60HRC shafts with h6 tolerances. For running on shafts fixed at the ends.
Use with hardened precision ground shafting. Shaft tolerance: h6 (Normal Fit), j6 (Close Fit). Housing Tolerance: H7 (Clearance Fit), J7 (Interference Fit). Max Temp: 100
oC Intermittent, 80 Deg C continuous. This category may be available in the new MBA online store at
Bearings - Linear - Ball - Stainless Steel - Closed.
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Bushes Plastic
Underwater. High Temp. Chemical Resistant. High mechanical loading and wear resistance.
Specific Gravity 1.60 g/cm3. Operating Temp 240 C short term / 200 C long term. Tensile Strength at 20 oC = 135 Mpa. Hardness 82 Shore D (DIN53505). Bushing bore tolerance is F10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Food grade for low speeds and direct contact with food and pharmaceuticals.
Specific Gravity 1.14 g/cm3. Operating Temp 170 C short term / 80 C long term. Tensile Strength at 20 oC = 116 Mpa. Hardness 81 Shore D (DIN53505). Bushing bore tolerance is D11 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Food grade for low speeds and direct contact with food and pharmaceuticals.
Specific Gravity 1.14 g/cm3. Operating Temp 170 C short term / 80 C long term. Tensile Strength at 20 oC = 116 Mpa. Hardness 81 Shore D (DIN53505). Bushing bore tolerance is D11 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Food grade for low speeds and direct contact with food and pharmaceuticals.
Specific Gravity 1.39 g/cm3. Operating Temp 180 C short term / 140 C long term. Tensile Strength at 20 oC = 250 Mpa. Hardness 88 Shore D (DIN53505). Bushing bore tolerance is D11 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Very high temperature. Extreme chemical resistance. High compressive strength. Low water absorption.
Specific Gravity 1.44 g/cm3. Operating Temp 315 C short term / 250 C long term. Tensile Strength at 20 oC = 170 Mpa. Hardness 85 Shore D (DIN53505). Bushing bore tolerance is F10 after a H7 press fit. Tolerances listed in the tables are after assembly using H7 recommended fit.
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Magnets Ceramic
Extended poles can be lightly machined. Press fit. Insulated aluminium casing.
Non conductive hard brittle material. Performs best at temperatures below 249 oC. Can be cut with a diamond wheel. Difficult to grind and can't be machined or drilled by normal methods. Tolerance 0.13mm on all dimensions.
Linear Bearings
High Precision Corrosion Resistant Miniature Linear Bearings.
High Precision Swiss Made, Accurate Guiding, Smooth Running. High Load Capacity. Tolerances --- d (+0.008 / -0.000 mm) D (+0.000 / -0.010 mm). Recommended Outer ring fitted with interferance of 1-3 Microns or retained by Circlips. Shafts (not included) should be 60-63 Rockwell C hardness with tolerances +0.000 / -0.006 mm.
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Springs Disc
Used under the nuts or bolt head in bolted flange joints that are subject to thermal or mechanical shock.
The discs deflect and move with the bolted joint. Helps to compensate for loosening that may develop preventing damage and leaks caused by thermal expansion, contraction and shock. Made from 17.7 PH Stainless Steel. Temperature range minus 220 to +300o Celsius. Load tolerance +/- 20% of load shown.
Magnets Ceramic
Extended poles can be lightly machined. With tapped blind hole in base for mounting. Insulated aluminium casing.
Non conductive hard brittle material. Performs best at temperatures below 249 oC. Can be cut with a diamond wheel. Difficult to grind and can't be machined or drilled by normal methods. Tolerance 0.13mm on all dimensions.
Bearings Single Row Ball
Radial ball bearings. This series is precision ground on all contact surfaces except the bore. Recommended for lighter loads and maximum speed of 3000rpm. Bore tolerance is +0.127/-0.000, OD tolerance is +0.000/-0.013 and width is +0.000/-0.127
Radial ball bearings. This series is precision ground on all contact surfaces except the bore. Recommended for lighter loads and maximum speed of 3000rpm. Bore tolerance is +0.127/-0.000, OD tolerance is +0.000/-0.013 and width is +0.000/-0.127
Springs Disc
Not for constant spring forces or when high forces are needed. Provides flat spring characteristics and compensates for axial clearances and tolerances. Vibration dampening and noise reduction. Electrical and thermal insulation. Non magnetic - Polysorb(R) material.
Balls Metallic
Hardness: Rockwell C: 60-70.
Tolerances available on request. Grades shown are AFBMA / ISO3290-1. SAE 52100 Chrome Steel. Hardness: Rockwell C: 60-70. Specific Gravity: 7.833. This category may be available in the new MBA online store at
Balls - Chrome Steel.
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Circlips
For end play take up.
Thickness tolerance +/- 0.025. This category may be available in the new MBA online store at
E-Clips - Bowed.
Washers Flat Plastic
Flat washers.
Please note! Tolerances for commercial grade washers are much larger than for precision washers. In most cases the actual washer size will be larger than the nominal ID and smaller than the nominal OD. This category may be available in the new MBA online store at
Washers - Flat - Nylon.
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Linear Slides
Made from 304 stainless with bearing balls. Used where corrosion resistance is required such as laboratories, humid and damp environments, marine applications and clean rooms. Bright finish, tight tolerance, quiet operation and smooth glide.
Side mounted two member slide. Friction brake allows drawer to come to a slow stop. Front disconnects by pulling firmly on the drawer until it releases. Requires 16 M4 or 8 Gauge Pan Head Screws (not included). This category may be available in the new MBA online store at
Slides - Drawer - Front Disconnect - Friction - 19mm Ext.
Made from 304 stainless with bearing balls. Used where corrosion resistance is required such as laboratories, humid and damp environments, marine applications and clean rooms. Bright finish, tight tolerance, quiet operation and smooth glide.
Side mounted three member slide. Allows drawer to be pulled out further than the slide length allowing full access to the drawer. Front disconnects by lifting a lever lever. Requires 16 M4 or 8 Gauge Pan Head Screws (not included). This category may be available in the new MBA online store at
Slides - Drawer - Front Disconnect - Lever - Full Ext.
Made from 304 stainless with bearing balls. Used where corrosion resistance is required such as laboratories, humid and damp environments, marine applications and clean rooms. Bright finish, tight tolerance, quiet operation and smooth glide.
Undercarriage mounted two member slide. Friction brake allows drawer to come to a slow stop. Only one required per drawer. Requires 16 M4 or 8 Gauge Pan Head Screws (not included). Shipped with a bracket and two plastic tracks.
Made from 304 stainless with bearing balls. Used where corrosion resistance is required such as laboratories, humid and damp environments, marine applications and clean rooms. Bright finish, tight tolerance, quiet operation and smooth glide.
Side mounted three member slide. Allows drawer to be pulled out further than the slide length allowing full access to the drawer. Positive stop slide with a quick disconnect. This category may be available in the new MBA online store at
Slides - Drawer - Quick Disconnect - Medium Duty - Full Ext.
Shafting General Purpose
Keyways are cut full length of each bar. Low carbon steel C1018. Good case hardening properties.
Diameter Tolerance +0.00/-0.051. Keyway Depth Tolerance +0.41/-0.00. Keyway Width Tolerance +0.05/-0.00. Unhardened carbon steel. Special order may be available for stainless steel, other diameters, other lengths. Please ask.
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