Bearing Shop Online - an MBA business

MM9304K FAFNIR


Cross Referenced Part Numbers



6904 FAFNIR part number MM9304K





ID (d): 20.000. OD (D): 37.000. Width (B): 9.000.

Online Price: 0.00     
Stock: Pre-Order (due 2 weeks)     
Due dates are estimates only     


Category Matches

Rollers


Rollers - Feed - With Aluminium Sleeve
Rollers - Feed - With Aluminium Sleeve

Also see combined categories:
All Rollers

Tolerance of Roller Outside Diameter (D) is +/-0.075 mm

Urethane 60 Durometer ground outside diameter. Aluminium sleeve. Feed rollers do not have a rotating bore. They are designed to turn with the shaft.

Related Information:

There is also a good range of Rollers - Feed - With Aluminium Sleeve on the Small Parts and Bearings website.


Shafting Precision Ground


Shafting - Ground - Precision - Titanium - Ti-Gr2-TA1
Shafting - Ground - Precision - Titanium - Ti-Gr2-TA1

Also see combined categories:
All Shafting
All Titanium Shafting

CP2 Commercially Pure Titanium Grade 2. Tensile Strength 35.2 kgf/mm2. Yield Strength 28.2 kgf/mm2. Elongation 20 Percent.

Commercially pure for general industrial corrosion applications. UNS R50400. Widely used in power generation, chemical processing, aerospace and medical applications. Composition Percentage: Al 0, V 0, N 0.03, C 0.08, H 0.015, Fe 0.3, O 0.25, Ti Balance. Shaft with undersized tolerances is suitable for use with precision ground bearings. Shaft with oversized tolerances is suitable for pulleys or gears requiring interference fits, or for machining to your required tolerances.

Related Information:

There is also a good range of Shafting - Ground - Precision - Titanium - Ti-Gr2-TA1 on the Small Parts and Bearings website.


Balls Plastic


Balls - Plastic - Acrylic
Balls - Plastic - Acrylic

Also see combined categories:
All Plastic Balls
All Non Metallic Balls

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.

Related Information:

There is also a good range of Balls - Plastic - Acrylic on the Small Parts and Bearings website.


Linear Slides


Linear Slide Assemblies - Ball - Pre-Loaded - Compliant
Linear Slide Assemblies - Ball - Pre-Loaded - Compliant

Also see combined categories:
All Linear Slide Assemblies

Pre-loaded ball slides provide an acceptable level of accuracy of 0.001mm per mm for most linear motion applications. Considerably lower cost than crossed roller slides.

Uses a conventional hardened steel rod raceway and balls. Incorporates an elastomer spine and shock absorbing backup gib. Provides even and continuous preload, whilst minimising the effects of impact and shock. Tolerant to contamination and can operate of millions of cycles without lubrication. 8-32 UNC mounting holes.

There is also a good range of Linear Slide Assemblies - Ball - Pre-Loaded - Compliant on the Small Parts and Bearings website.


Linear Slide Assemblies - Ball - Pre-Loaded - Hard Gib
Linear Slide Assemblies - Ball - Pre-Loaded - Hard Gib

Also see combined categories:
All Linear Slide Assemblies

Pre-loaded ball slides provide an acceptable level of accuracy of 0.001mm per mm for most linear motion applications. Considerably lower cost than crossed roller slides.

Hard gib preload. Tolerant to contamination and can operate of millions of cycles without lubrication. 8-32 UNC mounting holes.

There is also a good range of Linear Slide Assemblies - Ball - Pre-Loaded - Hard Gib on the Small Parts and Bearings website.


Shafting Precision Ground


Shafting - Pre Drilled and Tapped - High Carbon Steel
Shafting - Pre Drilled and Tapped - High Carbon Steel

Also see combined categories:
All Shafting
All Steel Shafting

For use with rail supports and open linear bearings

Straightness: 0.1 mm / mtr.

There is also a good range of Shafting - Pre Drilled and Tapped - High Carbon Steel on the Small Parts and Bearings website.


Linear Slides


Linear - Assemblies - Ball Slide - Precision
Linear - Assemblies - Ball Slide - Precision


These precision ball slides have a typical coefficient of friction of 0.003 and provide straight line accuracy of 0.0005mm per mm of travel.

At load capacity a life of 250 million mm of travel can be expected. The expected life at half load capacity is 2.5 billion mm. Factory preload adjustment prevents sideplay and backlash. Lightweight aluminium carriage and base with high load capacity. Four tapped and threaded carriage holes and counterbored base holes simplify installation and component mounting. Long life, self cleaning ball bearing needs no lubrication. Positional repeatability 0.005mm. Clear anodised finish.

There is also a good range of Linear - Assemblies - Ball Slide - Precision on the Small Parts and Bearings website.


You may also be interested in

Bearings One Way Clutch


Bearings - One Way - Roller
Bearings - One Way - Roller

Also see combined categories:
All One Way Clutch Bearings

Roller Clutch Bearings rotate in one direction only.

Recommended Shaft Diameter for Clutch Bearings without Inner Ring is +0.000 / -0.005 mm.

Related Information:

There is also a good range of Bearings - One Way - Roller on the Small Parts and Bearings website.


Dual Vee Bearings


Dual Vee - Guide Wheels - Studded
Dual Vee - Guide Wheels - Studded

Also see combined categories:
All Dual Vee Guide Wheels

Vee grooved track roller guide wheels.

Match with correct Track Size. Note! OD is reference only. Allow up to 1.2 mm larger than listed.

Related Information:

There is also a good range of Dual Vee - Guide Wheels - Studded on the Small Parts and Bearings website.


Linear Bearings


Bearings - Linear - Ball - Miniature - Super High Precision
Bearings - Linear - Ball - Miniature - Super High Precision

Also see combined categories:
All Closed Linear Ball 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.

Related Information:

There is also a good range of Bearings - Linear - Ball - Miniature - Super High Precision on the Small Parts and Bearings website.


Balls Metallic


Balls - Titanium Alloy - Ti-Gr23 Ti-6Al4V-ELI
Balls - Titanium Alloy - Ti-Gr23 Ti-6Al4V-ELI

Also see combined categories:
All Metallic Balls

Implant Grade can be used for Jewellery and Body Piercing. Grade 23 6Al-4V is a high strength titanium alloy. Tensile Strength 84.5kgf / mm2. Yield Strength 77.5kgf / mm2. Elongation 10 Percent.

Precision Grade: 200. Grades shown are AFBMA / ISO3290-1. Plain. Composition Percentage: Al 5.5-6.5, V 3.5-4.5, N 0.03, C 0.08, H 0.013, Fe 0.25, O 0.13, Ti Balance. Grade 23 6Al-4V is a high strength titanium alloy. Tensile Strength 84.5kgf / mm2. Yield Strength 77.5kgf / mm2. Elongation 10 Percent.

Related Information:

There is also a good range of Balls - Titanium Alloy - Ti-Gr23 Ti-6Al4V-ELI on the Small Parts and Bearings website.


Bearings Stainless Special Grades


Bearings - Ball - AISI304 Stainless Steel
Bearings - Ball - AISI304 Stainless Steel

Also see combined categories:
All 300 Grade Stainless Bearings

Corrosion and Heat resistance - Non Magnetic - Non Hardenable. Quality Japanese manufacture.

Tolerances differ from standard bearing types - see below. Due to the tolerance range it is recommended that each actual bearing is measured to calculate fits. ID +0.05 / -0 mm , OD +0 / -0.03 mm up to 10mm bore, Width +0/- 0.12 mm. Mid range speed and load between 304 stainless and 440C stainless. Rubber seals are Nitrile but fluorine rubber may be available on request. Cages, balls, races and shields from AISI 304 Stainless Steel.

Related Information:


Shafting - Ground - Precision - Titanium - Ti-Gr5 - TC4
Shafting - Ground - Precision - Titanium - Ti-Gr5 - TC4

Also see combined categories:
All Shafting
All Titanium Shafting

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 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. Shaft with oversized tolerances is suitable for pulleys or gears requiring interference fits, or for machining to your required tolerances.

Related Information:

There is also a good range of Shafting - Ground - Precision - Titanium - Ti-Gr5 - TC4 on the Small Parts and Bearings website.


Most Common Heavy Duty Jockey Wheels Parts
Most Common Heavy Duty Jockey Wheels Parts


Bearings and Spare Parts

Where alternative parts are offered, we make no claims as to their suitability. Selection of the most suitable bearings and parts is the responsibility of the customer. We recommend you replace bearings with the same type if that type is working well. High speed caged bearings are better suited to handle vibration than standard caged bearings.

There is also a good range of Most Common Heavy Duty Jockey Wheels Parts on the Small Parts and Bearings website.


Most Common Standard Duty Jockey Wheels Parts
Most Common Standard Duty Jockey Wheels Parts


Bearings and Spare Parts

Where alternative parts are offered, we make no claims as to their suitability. Selection of the most suitable bearings and parts is the responsibility of the customer. We recommend you replace bearings with the same type if that type is working well. High speed caged bearings are better suited to handle vibration than standard caged bearings.

There is also a good range of Most Common Standard Duty Jockey Wheels Parts on the Small Parts and Bearings website.


Ballscrew - 16mm Nuts - Pillow Block
Ballscrew - 16mm Nuts - Pillow Block

Also see combined categories:
All Ball Screws

Includes ball nut. Match all components within the 16mm range only.

Antibacklash. Repeatability 0.01mm, accuracy 0.1mm/300mm when used with our 16mm screws. Hardened ground and polished Cf53 steel to HRC62 +/-2. Balls hardened HRC63 +/- 2.

There is also a good range of Ballscrew - 16mm Nuts - Pillow Block on the Small Parts and Bearings website.


Ballscrew - Ground - Dia 4mm - Lead 1mm
Ballscrew - Ground - Dia 4mm - Lead 1mm

Also see combined categories:
All Ball Screws

Not for sale outside of Australia and New Zealand


There is also a good range of Ballscrew - Ground - Dia 4mm - Lead 1mm on the Small Parts and Bearings website.


Shafting - Aluminium - Ceramic Coated
Shafting - Aluminium - Ceramic Coated

Also see combined categories:
All Shafting
All Aluminium Shafting

Recommended for use with Frelon Gold linear bearings. Aluminium 6061-T6 with ceramic coated finish. Ceramic coat has rockwell hardness of 70C. No magnetic and vibration reseistant.

Weld spatter, contaminants and paints will not stick. Do not use with ball bearings. Use with Frelon lined or similar plain bearings only. Shaft ends are not coated.

Related Information:

There is also a good range of Shafting - Aluminium - Ceramic Coated on the Small Parts and Bearings website.


Shafting - Aluminium - Ceramic Coated - Tapped
Shafting - Aluminium - Ceramic Coated - Tapped

Also see combined categories:
All Shafting
All Aluminium Shafting

Recommended for use with Frelon Gold linear bearings. Aluminium 6061-T6 with ceramic coated finish. Ceramic coat has rockwell hardness of 70C. No magnetic and vibration reseistant.

Weld spatter, contaminants and paints will not stick. Do not use with ball bearings. Use with Frelon lined or similar plain bearings only. Shaft ends are not coated.

Related Information:

There is also a good range of Shafting - Aluminium - Ceramic Coated - Tapped on the Small Parts and Bearings website.


Shafting - Aluminium
Shafting - Aluminium

Also see combined categories:
All Shafting
All Aluminium Shafting

Drylin aluminium shafting is recommended for use with Igubal Drylin bearings or Frelon lined bearings only.

Material : AlMgSi 0.5 F22. Tolerance: h9 - h11. Roundness: DIN 1798. Straightness: DIN 1798. Hardness: 75HB. Surface: Hard anodised. Oxidisation (wear resistant Al. Oxide) Layer Thickness: Greater than 40um. Surface Hardness: 450-550 HV. Roughness: Ra Less than 0.5. Special Electrical Resistance: 4*1011 Ohm mm2/m. Chemical Resistance: ph between 2 and 9.

There is also a good range of Shafting - Aluminium on the Small Parts and Bearings website.


Bearings - Tapered Roller - Single Row - Inch Sets
Bearings - Tapered Roller - Single Row - Inch Sets


Common automotive sets include cup and cone



Bushings - Stroke Rotary - Miniature
Bushings - Stroke Rotary - Miniature

Also see combined categories:
All Stroke Rotary Bushings

2 to 12mm Shaft Sizes. Can operate in both linear and rotary directions at the same time.

Set includes outer ring, ball cage and shaft. Ball Cage: Brass Balls: Hard Steel / Shaft: Hard Steel Outer Ring: Hard Steel. Temperature: +100oC (Constant), +120oC (Maximum). Stroke: = (L1 - Lb) x 2. Supplied with extreme accuracy with zero to minimum preload.

Related Information:

There is also a good range of Bushings - Stroke Rotary - Miniature on the Small Parts and Bearings website.


Housings - Bearing - Flanged - 2 Bolt Hole - Aluminium
Housings - Bearing - Flanged - 2 Bolt Hole - Aluminium


Starting at 8mm bore size, aluminium silver series housings with removable chrome steel bearing


There is also a good range of Housings - Bearing - Flanged - 2 Bolt Hole - Aluminium on the Small Parts and Bearings website.


Bearings - Ball - Angular Contact - 440C Stainless
Bearings - Ball - Angular Contact - 440C Stainless

Also see combined categories:
All Angular Contact Bearings

Including miniature sizes down to 8mm from stock and even smaller available.

Single row angular contact ball bearings.

Related Information:

There is also a good range of Bearings - Ball - Angular Contact - 440C Stainless on the Small Parts and Bearings website.


Bearings - Ball - Angular Contact - Chrome Steel
Bearings - Ball - Angular Contact - Chrome Steel

Also see combined categories:
All Angular Contact Bearings

Including miniature sizes down to 8mm from stock and even smaller available.

Single row angular contact ball bearings.

Related Information:

There is also a good range of Bearings - Ball - Angular Contact - Chrome Steel on the Small Parts and Bearings website.


Rollers - Nylon Tyre - Convex - Through Bore
Rollers - Nylon Tyre - Convex - Through Bore

Also see combined categories:
All Tyred OD Bearings
All Rollers

Nylon tyred rollers for cabinet doors, gym equipment etc. Commonly found in rowing machines.


Related Information:

There is also a good range of Rollers - Nylon Tyre - Convex - Through Bore on the Small Parts and Bearings website.


Shafting - Ground - Precision - High Carbon Steel
Shafting - Ground - Precision - High Carbon Steel

Also see combined categories:
All Shafting
All Steel Shafting

Precision ground shafting. AISI C1060. Hardened and recommended for use with precision bearings.


Related Information:

There is also a good range of Shafting - Ground - Precision - High Carbon Steel on the Small Parts and Bearings website.


Shafting - Ground - Precision - Stainless 416 Grade Hardened
Shafting - Ground - Precision - Stainless 416 Grade Hardened

Also see combined categories:
All Shafting
All Stainless Shafting

Precision ground shafting. 416 grade. Hardened and recommended for use with precision bearings.


Related Information:

There is also a good range of Shafting - Ground - Precision - Stainless 416 Grade Hardened on the Small Parts and Bearings website.


Shafting - Ground - Precision - Stainless 420 Grade Hardened
Shafting - Ground - Precision - Stainless 420 Grade Hardened

Also see combined categories:
All Shafting
All Stainless Shafting

Precision ground shafting. 420 grade. Hardened and recommended for use with precision bearings.


Related Information:

There is also a good range of Shafting - Ground - Precision - Stainless 420 Grade Hardened on the Small Parts and Bearings website.


Shafting - Ground - Precision - Stainless 440C Grade Hardened
Shafting - Ground - Precision - Stainless 440C Grade Hardened

Also see combined categories:
All Shafting
All Stainless Shafting

Precision ground shafting. 440C grade. Hardened and recommended for use with precision bearings.


Related Information:

There is also a good range of Shafting - Ground - Precision - Stainless 440C Grade Hardened on the Small Parts and Bearings website.


Bushes - Stainless Steel and PTFE - Flanged
Bushes - Stainless Steel and PTFE - Flanged

Also see combined categories:
All Steel Bushes
All Flanged Steel Bushes

Oil, acid, alkali and salt water resistant. Contains no lead. Particularly suited to food applications, flow meters and pumps in pharmaceutical applications, printing machines chemical engineering and seawater applications.

Operating Temperature -200o to 280o Celsuis. PTFE with oilfibre 0.01 to around 0.03mm. Porous bronze 0.2 to around 0.3mm. Stainless steel backing 0.7 to around 2.3mm. 140 N/mm2 dynamic load rating. 250 N/mm2 static. 60 N/mm2 Oscillating. Speed Limit in oil 4.5 metres surface speed per second.

Related Information:

There is also a good range of Bushes - Stainless Steel and PTFE - Flanged on the Small Parts and Bearings website.


Bushes - Stainless Steel and PTFE - Unflanged
Bushes - Stainless Steel and PTFE - Unflanged

Also see combined categories:
All Steel Bushes
All Unflanged Steel Bushes

Oil, acid, alkali and salt water resistant. Contains no lead. Particularly suited to food applications, flow meters and pumps in pharmaceutical applications, printing machines chemical engineering and seawater applications.

Operating Temperature -200o to 280o Celsuis. PTFE with oilfibre 0.01 to around 0.03mm. Porous bronze 0.2 to around 0.3mm. Stainless steel backing 0.7 to around 2.3mm. 140 N/mm2 dynamic load rating. 250 N/mm2 static. 60 N/mm2 Oscillating. Speed Limit in oil 4.5 metres surface speed per second.

Related Information:

There is also a good range of Bushes - Stainless Steel and PTFE - Unflanged on the Small Parts and Bearings website.


Main Pages



Freight Rates
Terms and Conditions
Privacy Policy

Registered Australian Company: Small Parts & Bearings Pty Ltd (ABN 79 121 865 414) - Trading as Bearing Shop Online

Bearing Shop Online offers 25900 products in 520 categories including ball bearings, roller bearings, thrust bearings, ceramic and ceramic hybrid bearings, stainless steel bearings, miniature bearings, linear bearings, shafting, corrosion resistant bearings - see the full listing in the Online Catalogue. We have excellent Freight Rates within Australia and worldwide. We offer a choice of delivery with a signature required, or cheaper options with no signature required. The no signature required options are at the customer’s risk once the goods leave our store.

Using the links throughout this site you will find extensive information including catalogues, technical data, and other product specific information. We sell our products worldwide through our online store and our overseas freight rates are competitive for fully traceable courier delivery.

Bearing Shop Online is part of MBA Group offering a select range from the MBA Group catalogue.

Bearing Shop Online products are not authorised for sale into the USA or Canada due to the reluctance of Australian insurers to provide product liability insurance into those two countries.

Information on this website is Copyright Bearing Shop Online 1997. All rights reserved.

Freight Rates
Terms and Conditions
Privacy Policy

Registered Australian Company: Small Parts & Bearings Pty Ltd (ABN 79 121 865 414) - Trading as Bearing Shop Online

Bearing Shop Online offers 25900 products in 520 categories including ball bearings, roller bearings, thrust bearings, ceramic and ceramic hybrid bearings, stainless steel bearings, miniature bearings, linear bearings, shafting, corrosion resistant bearings - see the full listing in the Online Catalogue. We have excellent Freight Rates within Australia and worldwide. We offer a choice of delivery with a signature required, or cheaper options with no signature required. The no signature required options are at the customer’s risk once the goods leave our store.

Using the links throughout this site you will find extensive information including catalogues, technical data, and other product specific information. We sell our products worldwide through our online store and our overseas freight rates are competitive for fully traceable courier delivery.

Bearing Shop Online is part of MBA Group offering a select range from the MBA Group catalogue.

Bearing Shop Online products are not authorised for sale into the USA or Canada due to the reluctance of Australian insurers to provide product liability insurance into those two countries.

Information on this website is Copyright Bearing Shop Online 1997. All rights reserved.