Bearing Lock Washers: MB Tab Washers for KM Lock Nuts, Installation & Selection Guide

Bearing lock washers are specialized mechanical locking components used with bearing lock nuts to secure bearings and other components on threaded shafts.

They are fundamentally different from conventional split spring washers.

A typical bearing locking arrangement uses:

Threaded Shaft + Shaft Groove + Bearing Lock Washer + Slotted Lock Nut

In commonly used metric bearing systems, engineers and maintenance teams may encounter combinations such as:

KM Lock Nut + MB Lock Washer

The lock washer contains an inner tab that engages a groove in the shaft and multiple outer tabs that can engage a slot in the lock nut.

Once correctly installed, the system creates a positive mechanical anti-rotation feature rather than relying only on friction or spring force.

This distinction makes bearing lock washers important in rolling-bearing assemblies, electric motors, gearboxes, pumps, industrial machinery, 

material-handling equipment and other rotating systems where a lock nut is used to locate or secure a component on a shaft.

For engineering and procurement teams, the correct selection path is:

Bearing Arrangement → Shaft Thread → Lock Nut → Compatible Lock Washer → Shaft Groove → Bearing Adjustment → Tab Engagement → Inspection → OEM / Replacement RFQ

JUXIN FASTENERS supports sourcing of bearing lock washers, tab washers, industrial washers, lock nuts and related custom fastening components for industrial equipment and engineered mechanical assemblies.

What Is a Bearing Lock Washer?

A bearing lock washer is a thin washer incorporating locking tabs designed to work with a compatible lock nut and shaft.

It is also commonly described using terms such as:

• bearing lock washer;

• tab lock washer;

• bearing nut lock washer;

• lock washer for bearing lock nut;

• MB lock washer;

• locking washer for KM lock nut.

Unlike a conventional split spring-lock washer, the bearing lock washer does not primarily depend on elastic spring force to resist rotation.

Instead, it uses geometric engagement.

The shaft prevents the washer from rotating.

The washer prevents the nut from rotating.

This creates a mechanical locking chain:

Shaft → Inner Tab → Lock Washer → Outer Tab → Lock Nut

Bearing Lock Washer vs Spring Lock Washer

These products should not be confused.

Split Spring Washer

A helical split washer traditionally used beneath a bolt head or nut.

Its behavior involves elastic deformation and interaction at the bearing interface.

Bearing Tab Lock Washer

A multi-tab locking component used with a compatible bearing lock nut and shaft groove.

Its locking principle is mechanical engagement.

Therefore:

Bearing Lock Washer ≠ Split Spring Washer

Calling an MB-style bearing washer simply a “spring washer” can create sourcing ambiguity.

For international OEM and MRO sourcing, bearing lock washer, tab lock washer or the applicable designation is normally more precise.

Why Bearing Lock Washers Are Used

Rolling bearings and other shaft-mounted components often require controlled axial positioning.

A threaded lock nut can be used to:

• locate a bearing inner ring;

• retain a bearing or component axially;

• support bearing mounting or adjustment;

• secure selected shaft-mounted components.

Once the lock nut reaches the required position, the design may need a method to prevent unintended rotation.

A compatible tab washer provides that locking function.

Positive Mechanical Locking

One of the most important distinctions between a bearing tab washer and many friction-based locking methods is the locking mechanism.

With a correctly designed system:

1. The washer's inner tab engages the shaft groove.

2. The washer therefore cannot freely rotate around the shaft.

3. The lock nut is positioned according to the bearing or component installation requirement.

4. One suitable outer washer tab is bent into a lock-nut slot.

5. The engaged tab mechanically restrains nut rotation relative to the washer.

The locking function is therefore based on physical engagement between components.

The Inner Tab: Locking the Washer to the Shaft

The inner tab is a critical feature.

It fits into a corresponding groove or keyway feature in the shaft.

Its function is to prevent the lock washer from rotating relative to the shaft.

Without correct engagement of this inner feature, the intended locking chain is incomplete.

This means procurement should not select a bearing lock washer solely by:

Outside Diameter

or:

Shaft Diameter

Compatibility with the shaft and lock nut matters.

The Outer Tabs: Locking the Nut to the Washer

Multiple tabs are arranged around the outer circumference of a typical bearing lock washer.

After the lock nut has been positioned correctly, one suitable outer tab is bent into a corresponding slot in the lock nut.

This prevents the nut from rotating freely relative to the washer.

The system becomes:

Nut Slot → Bent Outer Tab → Washer → Inner Tab → Shaft Groove

This is why the lock nut, washer and shaft should be treated as a system.

MB Lock Washers and KM Lock Nuts

A widely recognized metric bearing-locking arrangement uses:

KM Lock Nut + MB Lock Washer

In common bearing-industry designation systems:

KM identifies a lock nut with dimensions according to the applicable ISO-based dimensional system.

MB identifies a lock washer intended for use with a compatible KM lock nut.

This terminology is widely encountered in:

• rolling-bearing catalogs;

• industrial maintenance;

• mechanical drawings;

• replacement-part searches;

• OEM procurement.

As a result, useful sourcing searches include:

• MB lock washer;

• MB bearing washer;

• KM lock nut washer;

• lock washer for KM nut;

• bearing tab washer.

MBL Lock Washers and KML Lock Nuts

Not every bearing lock washer belongs to the standard KM + MB combination.

Lower-profile lock-nut systems can use:

KML Lock Nut + MBL Lock Washer

The lower sectional height can be useful where axial installation space is limited.

Therefore:

MB ≠ MBL

and:

KM ≠ KML

Procurement should identify the exact lock-nut series before ordering the washer.

DIN 5406 Bearing Locking Devices

DIN 5406 is an important standard reference for rolling-bearing locking devices.

It addresses dimensions and designations for locking devices used with bearing lock nuts within its scope.

These include:

• lock washers;

• locking clips;

• related bearing-nut locking components.

For OEM sourcing, the applicable drawing, lock-nut designation and standard edition should control the requirement.

ISO-Based Bearing Locking Systems

Bearing-industry lock-nut and lock-washer systems can also be associated with ISO dimensional frameworks.

In practical procurement, engineers may encounter manufacturer designations such as:

• KM;

• KML;

• MB;

• MBL;

• HM;

• MS.

These designations should not be treated as interchangeable.

Each belongs to a defined geometry and compatible locking arrangement.

Bearing Lock Washer Selection Starts With the Lock Nut

A common purchasing mistake is:

“I need a lock washer for a 40 mm shaft.”

That may not provide enough information.

A more useful starting point is:

What lock nut is being used?

The washer must be compatible with:

• lock-nut designation;

• shaft thread;

• shaft groove;

• washer bore;

• washer outside diameter;

• tab geometry;

• axial space.

The complete interface matters.

Why Shaft Diameter Alone Is Not Enough

Two assemblies involving similar shaft diameters can use different:

• thread systems;

• lock nuts;

• washer series;

• shaft-groove geometry.

Therefore:

Same Shaft Diameter ≠ Same Bearing Lock Washer

For replacement sourcing, the existing lock-nut designation can often be more useful than a general shaft measurement.

Shaft Thread Compatibility

Bearing lock nuts are installed on threaded shaft sections.

The thread requirement must be identified correctly.

Depending on the system, relevant parameters can include:

• nominal thread diameter;

• thread pitch;

• thread form;

• tolerance;

• thread direction where applicable.

The washer itself does not engage the thread, but its geometry must fit the same shaft system.

Shaft Groove Compatibility

The inner tab needs a compatible shaft groove.

Engineers should verify:

• groove position;

• groove width;

• groove depth where controlled;

• washer inner-tab dimensions;

• shaft geometry.

A correct nut and washer combination can still fail to function as intended if the shaft groove is incorrect.

Bearing Lock Nut Slots

The outer circumference of a compatible lock nut includes slots or notches that provide engagement positions for the washer tab.

The washer's outer tabs provide multiple possible locking positions.

After the nut reaches its required setting, a suitable tab can be engaged with an appropriate nut slot.

The objective is to preserve the required bearing or component setting while establishing mechanical locking.

Do Not Use the Locking Tab to Set Bearing Preload

This is an important engineering distinction.

The tab washer locks the nut after the required nut position has been established.

It should not be treated as the primary method for determining:

• bearing preload;

• bearing internal clearance;

• axial displacement;

• mounting force.

Those parameters depend on the bearing arrangement and manufacturer's installation procedure.

Therefore:

Bearing Adjustment First → Locking Second

Do Not Arbitrarily Tighten the Nut Only to Reach the Next Tab

If the nut's required position does not immediately align with a convenient washer tab, do not automatically apply substantial additional tightening merely to reach the next locking position.

Changing the nut position can affect:

• bearing clearance;

• preload;

• axial location;

• bearing operating condition.

The correct action depends on the bearing manufacturer's mounting procedure and the specific locking system.

This is especially important in precision or preload-sensitive bearing arrangements.

Installation Step 1: Verify the Components

Before installation, confirm:

• shaft thread;

• lock-nut designation;

• washer designation;

• shaft groove;

• bearing arrangement;

• drawing requirements.

Do not assume visually similar washers are interchangeable.

Installation Step 2: Inspect the Shaft Groove

Check that the shaft groove is:

• correctly located;

• clean;

• free from severe burrs or damage;

• compatible with the washer's inner tab.

The inner tab must seat properly.

Installation Step 3: Install the Bearing Lock Washer

Place the washer onto the shaft so that its inner tab engages the shaft groove.

Verify that:

• the washer seats correctly;

• the inner tab enters the groove;

• the washer is not forced into an incompatible position.

The washer should not be modified casually to compensate for an incorrect shaft groove.

Installation Step 4: Install the Lock Nut

Thread the compatible lock nut onto the shaft.

Use the installation method required for the bearing arrangement.

Depending on the application, this can involve:

• hook spanner;

• impact spanner designed for the nut;

• another approved mounting tool;

• controlled bearing-mounting procedure.

The objective is to position the bearing or component correctly—not merely to make a washer tab line up.

Installation Step 5: Establish the Required Bearing Setting

Before locking the nut, complete the required bearing mounting or adjustment procedure.

Depending on the bearing system, this may involve control of:

• axial position;

• internal clearance;

• preload;

• drive-up;

• another manufacturer-defined parameter.

Follow the bearing manufacturer's procedure.

Installation Step 6: Engage an Outer Tab

After the nut reaches the approved position, identify a suitable outer washer tab corresponding to a lock-nut slot.

Bend the selected tab into the slot using an appropriate method.

The tab should engage sufficiently to restrain the nut from unintended rotation.

Avoid uncontrolled deformation of neighboring features.

Installation Step 7: Inspect the Lock

Verify that:

• the washer inner tab remains correctly engaged in the shaft groove;

• the washer is seated correctly;

• the selected outer tab engages the nut slot;

• the lock nut remains in the required position;

• no installation damage compromises the locking system.

Inspection should follow the equipment or maintenance procedure.

Should You Use a Screwdriver to Bend the Tab?

Older instructions sometimes simply say:

“Use a screwdriver.”

That is too general for professional engineering guidance.

The installation tool should:

• provide controlled tab deformation;

• avoid damaging the nut;

• avoid damaging the shaft;

• avoid creating uncontrolled burrs;

• provide sufficient access.

Use the equipment manufacturer's or maintenance procedure where one is specified.

Lock Washer Installation Direction

Do not create a universal “front side/back side” rule unless it is defined by the washer design or applicable specification.

The essential functional requirements are:

• correct inner-tab engagement;

• correct washer seating;

• correct compatibility with the lock nut;

• correct outer-tab engagement.

For special washer designs, follow the manufacturer's drawing.

Bearing Lock Washer vs Locking Clip

Some larger or different bearing lock-nut systems use a locking clip rather than a multi-tab washer.

These are different components.

A locking clip can engage:

• a feature in the nut;

• an appropriate shaft feature

according to the specific system.

Therefore:

Lock Washer ≠ Locking Clip

The lock-nut series determines the appropriate locking device.

Bearing Lock Washer vs Locking Plate

Locking plates are another mechanical locking category.

They can be used in selected shaft-nut or industrial fastener systems.

Again, the mechanism and dimensions differ from an MB-style lock washer.

Procurement should identify the exact component rather than sourcing all of them under the generic term:

Lock Washer

Bearing Lock Washer vs Split Spring Washer

This distinction deserves repeating because it directly affects search and sourcing.

The two products should not be substituted for each other.

Bearing Lock Washer vs Disc Spring

A disc spring is an elastic conical component selected around load and deflection.

A bearing lock washer is a mechanical anti-rotation component.

Therefore:

Bearing Lock Washer ≠ Belleville Spring

Their geometry, selection criteria and engineering purpose are completely different.

Bearing Lock Washer vs Wedge-Locking Washer

A wedge-locking washer system uses paired washer geometry to resist rotational self-loosening in a bolted joint.

A bearing tab washer physically engages a shaft groove and lock-nut slot.

These are different locking mechanisms.

The term lock washer alone is therefore insufficient for technical sourcing.

Positive Locking vs Friction-Based Locking

The bearing tab-washer system demonstrates an important engineering principle.

Some anti-loosening systems rely largely on:

• friction;

• prevailing torque;

• adhesive;

• surface interaction.

A tab washer instead uses a positive geometric restraint.

This can be particularly valuable when the design specifically requires the nut to be mechanically prevented from rotating away from its locked position.

However, positive locking does not eliminate the need for correct initial bearing adjustment.

Can a Bearing Lock Washer Maintain Bearing Preload?

The washer can help retain the lock nut's rotational position.

It does not independently create or regulate bearing preload.

Bearing preload depends on the complete bearing arrangement and installation method.

Therefore:

Locking Nut Position ≠ Automatically Correct Bearing Preload

Correct adjustment must come first.

Can a Bearing Lock Washer Prevent Axial Bearing Movement?

The lock washer helps secure the lock nut.

The lock nut and surrounding shaft/bearing geometry perform the actual axial location function.

The washer is one component in that retention system.

It should not be described as independently carrying every axial load in the bearing assembly.

Material Selection

Bearing lock washers require material properties appropriate to their forming and locking function.

The material must allow the locking tab to be formed during installation without inappropriate fracture while retaining the required geometry for the application.

Material requirements should follow:

• applicable standard;

• customer drawing;

• approved manufacturer specification.

Do not assume every bearing lock washer must use one universal spring-steel grade.

Why “Spring Steel” Is Too Generic for an RFQ

A request such as:

“Need spring steel bearing washers.”

may not sufficiently define the product.

Procurement should identify:

• washer designation;

• applicable standard;

• dimensions;

• material requirement;

• hardness where specified;

• finish;

• lock-nut compatibility.

Material terminology should not replace dimensional specification.

Surface Finish

Surface treatment may be selected according to:

• corrosion environment;

• storage conditions;

• assembly requirements;

• customer specification.

Potential finishes depend on the product and material.

The coating must not interfere with:

• dimensional fit;

• tab engagement;

• forming of the locking tab.

Where a specific coating is required, define it in the RFQ.

Corrosion Considerations

Bearing assemblies can operate in:

• indoor machinery;

• humid environments;

• outdoor equipment;

• contaminated industrial conditions.

Corrosion protection should be selected according to the actual service environment.

A generic plated washer should not automatically be assumed suitable for every bearing application.

Reuse of Bearing Lock Washers

A previously bent locking tab has undergone plastic deformation.

For maintenance-critical applications, do not automatically assume that a used tab washer can be repeatedly bent and reused.

Repeated bending can affect:

• tab geometry;

• local material condition;

• engagement reliability.

Follow the equipment or bearing manufacturer's maintenance instructions.

Where reliable locking is required, replacement with the correct new washer can be the more controlled maintenance approach.

Replacement Parts: Match the System, Not Just the Appearance

MRO teams frequently encounter old bearing lock washers without a readable part number.

A visually similar replacement is not necessarily correct.

Identify where possible:

• lock-nut designation;

• shaft thread;

• shaft diameter;

• shaft groove;

• washer dimensions;

• bearing arrangement.

This reduces the risk of installing a washer that fits loosely but does not lock correctly.

Rolling Bearing Applications

The primary application for MB-style tab washers is rolling-bearing locking arrangements.

Potential uses include:

• locating bearing inner rings;

• securing bearings on threaded shafts;

• adapter-sleeve arrangements where applicable;

• other manufacturer-defined bearing mounting systems.

The bearing manufacturer's mounting instructions should control installation.

Electric Motors

Electric motors contain shaft and bearing systems where axial positioning and secure nut retention can be important.

Potential applications depend on:

• motor design;

• bearing arrangement;

• shaft geometry.

The lock washer should be selected from the actual mechanical design rather than simply from motor power or frame size.

Gearboxes

Gearboxes contain rotating shafts, bearings and gears requiring controlled axial positioning.

Bearing lock nuts and tab washers can be used in appropriate designs to secure shaft-mounted components.

Potential applications include:

• input shafts;

• output shafts;

• intermediate shafts;

• bearing locations.

The actual locking method depends on the gearbox design.

Pumps

Industrial pumps use bearings to support rotating shafts.

Where a bearing lock nut is part of the shaft design, a compatible lock washer can provide positive mechanical locking.

Operating environment should also be considered when selecting material and surface protection.

Industrial Machinery

Potential applications include:

• machine tools;

• production equipment;

• conveyors;

• material-handling systems;

• rotating machinery;

• drive systems.

The common requirement is not simply vibration resistance.

It is controlled retention of a lock nut in the shaft assembly.

Elevators and Material-Handling Equipment

Bearing lock washers can be used in appropriate mechanical subassemblies involving:

• shafts;

• bearings;

• rotating components;

• drive equipment.

However, generic bearing washers should not automatically be described as certified elevator safety components.

Safety-critical elevator assemblies must follow the equipment manufacturer's approved specifications.

HVAC and Rotating Equipment

Fans, blowers, pumps and other HVAC rotating equipment can contain bearing arrangements requiring axial retention.

Where a lock-nut-and-tab-washer system is specified, the replacement component should match the original mechanical system.

Wind and Power Equipment

Rotating equipment used in energy systems can contain bearing-locking arrangements.

However, large or highly loaded bearing systems may use different locking devices, hydraulic nuts, locking clips or specialized bearing retention systems.

Do not assume an MB-style washer is suitable solely because the application contains a bearing.

Automotive and EV Manufacturing Equipment

Bearing lock washers can be relevant to:

• production machinery;

• electric motors;

• pumps;

• auxiliary rotating equipment;

• manufacturing systems.

Application-specific automotive qualification should not be inferred from the generic washer design.

AI Data Center Cooling Equipment

Modern data centers use substantial cooling and power infrastructure.

Rotating equipment can include:

• pumps;

• fans;

• motors;

• auxiliary mechanical systems.

Where those machines use threaded bearing lock nuts, compatible bearing lock washers may form part of the shaft retention system.

The application should be defined from the machine design rather than simply from the data-center industry category.

Maintenance and MRO Applications

Bearing lock washers have strong MRO search intent.

Maintenance teams may search for:

• replacement MB washer;

• bearing lock washer size;

• KM nut washer;

• bearing nut tab washer;

• lock washer for shaft nut;

• MB washer supplier.

For MRO sourcing, the fastest identification route is often:

Existing Lock Nut Designation → Compatible Lock Washer

rather than measuring only the damaged washer.

Engineer Search Intent

Engineers may search:

• bearing lock washer;

• how does bearing lock washer work;

• MB lock washer;

• KM nut lock washer;

• bearing tab washer installation;

• bearing lock washer direction;

• how to lock bearing nut;

• bearing lock washer shaft groove;

• MB vs MBL washer;

• lock washer for bearing nut.

These are highly specific technical searches.

They are much closer to component selection than a generic search for “washers.”

Procurement Search Intent

Purchasing and supplier-development teams may search:

• MB lock washer manufacturer;

• bearing lock washer supplier;

• tab lock washer manufacturer;

• KM lock nut washer supplier;

• DIN 5406 lock washer supplier;

• bearing nut lock washer manufacturer;

• custom tab washer manufacturer.

The purchasing requirement should identify the actual locking system.

Do Not RFQ Only “Bearing Washer”

The phrase:

“Bearing washer”

is ambiguous.

It can potentially refer to very different components.

A better RFQ is:

MB-Type Bearing Lock Washer for KM Lock Nut

or the exact applicable designation/drawing.

This substantially reduces sourcing errors.

Bearing Lock Washer Selection Matrix

Common Bearing Lock Washer Mistakes

Mistake 1: Calling It a Spring Washer

This can lead to the wrong product family.

Use bearing lock washer, tab lock washer or the applicable designation.

Mistake 2: Selecting by Shaft Diameter Alone

Lock-nut series and shaft geometry also matter.

Mistake 3: Ignoring the Shaft Groove

The inner tab requires the correct mating feature.

Mistake 4: Installing the Washer Without Engaging the Inner Tab

This breaks the intended mechanical locking chain.

Mistake 5: Tightening the Nut Excessively Just to Reach a Tab

Bearing adjustment requirements should control nut position.

Mistake 6: Using the Tab Washer to Establish Bearing Preload

The washer locks the position; it does not determine the correct bearing setting.

Mistake 7: Confusing MB and MBL Washers

They belong to different compatible lock-nut configurations.

Mistake 8: Assuming Any Tab Can Be Repeatedly Reused

Repeated plastic bending can damage the locking feature.

Mistake 9: Using an Ordinary Split Lock Washer Instead

The locking principles are completely different.

Mistake 10: Ordering by Appearance

A visually similar washer can still have incompatible dimensions.

Bearing Lock Washer RFQ Checklist

For technical and commercial evaluation by JUXIN FASTENERS, provide where applicable:

• 2D drawing;

• physical sample;

• existing washer designation;

• existing lock-nut designation;

• MB designation where applicable;

• MBL designation where applicable;

• applicable DIN, ISO or customer specification;

• shaft diameter;

• shaft thread;

• thread pitch;

• shaft-groove dimensions;

• washer inside diameter;

• washer outside diameter;

• washer thickness;

• inner-tab dimensions;

• outer-tab geometry;

• number of outer tabs where specified;

• material;

• hardness where specified;

• surface treatment;

• coating requirement;

• corrosion requirement;

• bearing designation where useful;

• application;

• operating environment;

• sample quantity;

• production quantity;

• annual demand;

• replacement/MRO quantity;

• inspection requirement;

• packaging requirement;

• labeling requirement;

• customer-specific requirements.

Frequently Asked Questions About Bearing Lock Washers

What is a bearing lock washer?

A bearing lock washer is a tabbed mechanical locking component used with a compatible bearing lock nut and shaft groove to restrain unintended nut rotation.

Is a bearing lock washer the same as a spring washer?

No.

A bearing tab washer uses positive mechanical engagement.

A conventional split spring washer uses a different geometry and locking principle.

What is an MB lock washer?

MB is a widely used bearing-industry designation for a metric lock washer compatible with appropriate KM lock nuts.

What is a KM lock nut?

KM identifies a widely used metric bearing lock-nut series with dimensions based on the applicable ISO dimensional system.

What is an MBL lock washer?

MBL identifies a lock-washer series associated with compatible lower-profile KML lock nuts.

How does an MB lock washer work?

Its inner tab engages a shaft groove, preventing washer rotation. After the lock nut reaches the required position, one outer tab is bent into a nut slot to restrain the nut from rotating.

Does a bearing lock washer need a shaft groove?

The conventional MB-style tab-locking principle requires the corresponding shaft feature for the inner tab.

Check the actual lock-nut and washer system.

Can I use an MB washer without a KM nut?

Do not assume compatibility.

The washer should be matched to the applicable lock-nut series and shaft geometry.

Can I reuse a bearing lock washer?

Do not automatically assume reuse is acceptable.

The locking tab is plastically bent during installation. Follow the equipment or bearing manufacturer's maintenance requirements.

Does the lock washer set bearing preload?

No.

The bearing should first be mounted or adjusted according to its specified procedure. The washer then helps lock the nut in the established position.

Can I tighten the nut further until a tab lines up?

Do not arbitrarily change a preload- or clearance-sensitive bearing setting simply to obtain tab alignment.

Follow the bearing manufacturer's installation procedure.

Is a bearing lock washer suitable for every rotating shaft?

No.

It requires a compatible shaft, lock nut, groove and locking architecture.

From Bearing Arrangement to Approved Lock Washer

An MRO buyer may begin with:

“Need bearing lock washer.”

A better sourcing process asks:

What Lock Nut Is Installed?

Then:

What Is the Shaft Thread?

Is There a Compatible Shaft Groove?

Is It KM + MB, KML + MBL or Another System?

What Standard or Drawing Controls the Dimensions?

What Material and Finish Are Required?

The complete sourcing path becomes:

Bearing Arrangement → Shaft Geometry → Lock Nut → Compatible Lock Washer → Bearing Setting → Tab Locking → Inspection → Approved Part → RFQ

This prevents the common mistake of treating every tabbed circular washer as interchangeable.

Bearing Lock Washer and Industrial Fastener Solutions from JUXIN FASTENERS

JUXIN FASTENERS supports OEM and MRO sourcing of bearing lock washers, tab lock washers, industrial washers,

 lock nuts and related fastening components for rotating equipment, industrial machinery, electric motors, pumps, gearboxes, HVAC equipment, material-handling systems and other engineered mechanical assemblies.

For broader washer selection, see Industrial Washers: Types, Functions & Selection Guide.

For general washer-and-bolt engineering, see Washers and Bolts: Fastening Systems Selection Guide.

For high-strength threaded fastening systems, see High-Strength Bolts & Nuts: Engineering Selection Guide.

For bearing lock washer RFQs, send your existing lock-nut designation, washer designation, drawing or sample, shaft thread, 

shaft-groove dimensions, washer dimensions, material, finish, application and estimated annual demand to:

info@juxinfasteners.com

The correct bearing lock washer is not simply a washer that fits over the shaft.

It is one component of a matched mechanical locking system between the shaft, washer and bearing lock nut.