Injection Molding
Tooling and molding for your repeat plastic parts.
ZA-27 Machining for Your Bearing Fit & Stable Dimensions
Plan your ZA-27 die casting and ZA-27 CNC machining around the final bearing interface, mounting datums and inspection state. For your custom ZA-27 parts, define usable casting stock and any dimensional-stability review before cutting to size.
ZA-27 / ZP27Retain your full product callout.
Al 25–28%Selected casting chemistry reference.
Cold-Chamber ReviewDistinguish die casting from gravity routes.
Your Final FitAgree free or installed acceptance.
Approve the Product Route Alongside Your ZA-27 Callout
ZA-27 zinc aluminum alloy and ZA27 alloy are names used in purchasing. Your ZA-27 properties and ZA-27 composition review still needs a product standard, casting route and agreed final state.
Selected Composition · wt.%
| Element | Casting reference | Ingot reference |
|---|---|---|
| Al | 25.0–28.0 | 25.5–28.0 |
| Cu | 2.0–2.5 | 2.0–2.5 |
| Mg | 0.01–0.02 | 0.012–0.02 |
| Fe | ≤0.075 | ≤0.07 |
| Pb | ≤0.006 | ≤0.005 |
| Cd | ≤0.006 | ≤0.005 |
| Sn | ≤0.003 | ≤0.002 |
| Zn | Balance | Balance |
Selected NADCA 2021 casting data and Eastern Alloys ASTM B240 ingot reference. Verify ordered standard and revision; do not use an ingot range as a finished-casting acceptance range. This is not your material-lot report.
Your European Product Names
| Callout | Your product review |
|---|---|
| ZP27 / ZP2720 | Casting reference associated with ZA-27. |
| ZnAl27Cu2 | Alloy symbol; approve the complete ordered requirements. |
| ZL27 / ZL2720 | IZA prototype-alloy reference; distinguish from ZP2720. |
| ZA-27 cold chamber die casting | Die-casting route review, with actual stock and geometry. |
| ZA-27 gravity casting | Review sand or permanent-mold routes separately. |
ZA-27 density is typically 5.0 g/cm³ in the selected Eastern Alloys die-cast data. A prototype from a different casting route does not automatically reproduce production properties.
See the Product Boundary in the Composition Ranges
ZA-27 Aluminum · wt.%
Common scale 0–30
Casting
25–28
Ingot
25.5–28
015.030
Selected Die-Cast Density · g/cm³
Common scale 0–7
ZA-27
5.0
ZA-12
6.0
ZA-8
6.3
03.57
Selected product references. Eastern Alloys typical die-cast densities are references, not lot acceptance or component load ratings. Chemistry and density do not establish machining time, part price, porosity or bearing life. Agree the same product route and acceptance when comparing materials.
NADCA casting data ↗ Eastern Alloys ZA-27 ↗ Casting-route comparison ↗ IZA prototype product names ↗
Resolve 6 Drawing and Supply Decisions Before Release
Define the assembly inputs before repeating quantities.
Choose Your Cast Product Before Machining
For your ZP2720 die casting review, confirm the cold-chamber route. ZA-27 sand casting and ZA-27 permanent mold casting need their own stock, tooling and acceptance review.
01 · Assembly
Define shaft, housing and working surface.
02 · Route
Agree stock, support and lubrication access.
03 · Acceptance
Inspect the defined final state.
Confirm materialMachineFinish if specifiedInspect
Approve Clearance in the Installed State
Define bore, locating diameter, mating material, lubrication and free or installed measurement. A material name alone does not approve bearing duty.
01 · Assembly
Define shaft, housing and working surface.
02 · Route
Agree stock, support and lubrication access.
03 · Acceptance
Inspect the defined final state.
Confirm materialMachineFinish if specifiedInspect
Review the Route Before Final Sizing
For ZA-27 creep resistance, define load, temperature and duration. Eastern Alloys notes stabilization may be needed for tight dimensions: agree the actual route and final inspection rather than applying an unverified heat-treatment recipe.
01 · Assembly
Define shaft, housing and working surface.
02 · Route
Agree stock, support and lubrication access.
03 · Acceptance
Inspect the defined final state.
Confirm materialMachineFinish if specifiedInspect
Define Access and Accepted Edges
Specify thread engagement, blind-hole depth, port entrances and burr acceptance. Show the sealing and bearing lands that must remain intact.
01 · Assembly
Define shaft, housing and working surface.
02 · Route
Agree stock, support and lubrication access.
03 · Acceptance
Inspect the defined final state.
Confirm materialMachineFinish if specifiedInspect
Reserve Your Final Coating State
For ZA-27 plating requests, review the finish choice before approval: Eastern Alloys does not recommend plating this alloy. Agree an appropriate alternative system, preparation, masks, sample and final dimensions.
01 · Assembly
Define shaft, housing and working surface.
02 · Route
Agree stock, support and lubrication access.
03 · Acceptance
Inspect the defined final state.
Confirm materialMachineFinish if specifiedInspect
Connect Material and Dimensional Records
Your ZA27 die casting services review should agree lot identity, exact product route, final inspection state, sampling and any separate functional test.
01 · Assembly
Define shaft, housing and working surface.
02 · Route
Agree stock, support and lubrication access.
03 · Acceptance
Inspect the defined final state.
Confirm materialMachineFinish if specifiedInspect
Define the Features Your ZA-27 Route Must Deliver
Your ZA-27 casting manufacturer review starts with the drawing: identify load-carrying interfaces, machining access and the state in which dimensions must be accepted.
Define Your Reducer Housings
For your stepped reducer housing, identify bearing-seat access, flange flatness and the relationship between the open cavity and external mounting lands. Review ZA-27 die cast housings against the controlled assembly.
| Your fit | What to define |
|---|---|
| Working interface | Bearing seats, cavity bosses, stepped flange and side port. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Agree Your Support and Access
For your ZA-27 machining review, connect usable stock and rigid support to the bore, flange or foot that sets assembly fit. Agree any stabilization route before the final sizing operation.
| Your fit | What to define |
|---|---|
| Working interface | Bearing seats, cavity bosses, stepped flange and side port. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Confirm the Supplied and Final State
Specify the casting route, supplied state, usable allowance and dimensional-stability requirements. Inspect after the agreed complete route and final finish.
| Your fit | What to define |
|---|---|
| Working interface | Bearing seats, cavity bosses, stepped flange and side port. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Receive Parts with the Right Evidence
For your ZA-27 machined parts, identify the material records, final dimensions, accepted edges, cleanliness and individual protection.
| Your fit | What to define |
|---|---|
| Working interface | Bearing seats, cavity bosses, stepped flange and side port. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Define Your Bearing Cartridges
For your round-flange cartridge, connect the bore, locating diameter and radial ports to the installed clearance and lubrication plan. Review ZA-27 bearing components against the controlled assembly.
| Your fit | What to define |
|---|---|
| Working interface | Bore, eight-hole round flange, locating land and oil ports. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Agree Your Support and Access
For your ZA-27 machining review, connect usable stock and rigid support to the bore, flange or foot that sets assembly fit. Agree any stabilization route before the final sizing operation.
| Your fit | What to define |
|---|---|
| Working interface | Bore, eight-hole round flange, locating land and oil ports. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Confirm the Supplied and Final State
Specify the casting route, supplied state, usable allowance and dimensional-stability requirements. Inspect after the agreed complete route and final finish.
| Your fit | What to define |
|---|---|
| Working interface | Bore, eight-hole round flange, locating land and oil ports. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Receive Parts with the Right Evidence
For your ZA-27 machined parts, identify the material records, final dimensions, accepted edges, cleanliness and individual protection.
| Your fit | What to define |
|---|---|
| Working interface | Bore, eight-hole round flange, locating land and oil ports. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Define Your Yoke Frames
For your trapezoidal yoke frame, define crossbar bore alignment, foot datums and the actual load path through the two columns. Review custom ZA-27 yoke frames against the controlled assembly.
| Your fit | What to define |
|---|---|
| Working interface | Crossbar bore, trapezoidal opening, foot datums and mating shaft. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Agree Your Support and Access
For your ZA-27 machining review, connect usable stock and rigid support to the bore, flange or foot that sets assembly fit. Agree any stabilization route before the final sizing operation.
| Your fit | What to define |
|---|---|
| Working interface | Crossbar bore, trapezoidal opening, foot datums and mating shaft. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Confirm the Supplied and Final State
Specify the casting route, supplied state, usable allowance and dimensional-stability requirements. Inspect after the agreed complete route and final finish.
| Your fit | What to define |
|---|---|
| Working interface | Crossbar bore, trapezoidal opening, foot datums and mating shaft. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Receive Parts with the Right Evidence
For your ZA-27 machined parts, identify the material records, final dimensions, accepted edges, cleanliness and individual protection.
| Your fit | What to define |
|---|---|
| Working interface | Crossbar bore, trapezoidal opening, foot datums and mating shaft. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Define Your Inspection Covers
For your oval cover, define the eccentric service boss, central opening and perimeter mounting faces. Agree any sealing test separately. Review custom ZA-27 inspection covers against the controlled assembly.
| Your fit | What to define |
|---|---|
| Working interface | Eccentric boss, central opening, flange land and eight-hole pattern. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Agree Your Support and Access
For your ZA-27 machining review, connect usable stock and rigid support to the bore, flange or foot that sets assembly fit. Agree any stabilization route before the final sizing operation.
| Your fit | What to define |
|---|---|
| Working interface | Eccentric boss, central opening, flange land and eight-hole pattern. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Confirm the Supplied and Final State
Specify the casting route, supplied state, usable allowance and dimensional-stability requirements. Inspect after the agreed complete route and final finish.
| Your fit | What to define |
|---|---|
| Working interface | Eccentric boss, central opening, flange land and eight-hole pattern. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Receive Parts with the Right Evidence
For your ZA-27 machined parts, identify the material records, final dimensions, accepted edges, cleanliness and individual protection.
| Your fit | What to define |
|---|---|
| Working interface | Eccentric boss, central opening, flange land and eight-hole pattern. |
| Your route | Casting product, usable stock and supported machining. |
| Your approval | Free or installed measurement state, finish and receiving records. |
Machine the Datums That Control Your Assembly
For your ZA-27 machining allowance review, identify where cast stock must clean up and how each critical feature is supported.
Cartridge Bores & Lands
Define cartridge bore, locating diameter and round-flange relationship in one supported route.
Review the Process →
Yoke Foot Datums
Support the yoke columns and crossbar while machining the foot datums.
Review the Process →
Cover Hole Access
Define backed perimeter drilling and access around the eccentric cover boss.
Review the Process →
Reducer Interface Review
Review the reducer side-port land and mounting interface after the casting route.
Review the Process →Protect the Surfaces That Set Your Fit
Agree visible marks, finish preparation, coating acceptance and protected delivery. Check dimensions in the final surface state.
Surface Finishing →Compare the Same Cast Product and Acceptance
| Your decision | What to confirm |
|---|---|
| Die casting or gravity route | Agree stock, geometry, tooling and inspection separately. |
| Prototype and production | Do not carry one route’s properties into another without review. |
| Bearing interface | Define load, speed, lubrication, mating material and final clearance. |
| Material change | Obtain drawing-authority approval and receiving criteria. |
ZA-27 material identity does not establish bearing life or finished-part load capacity. Resolve dimensional stability and the finish choice alongside the casting and machining route.
Compare Zinc Alloys →Check Your ZA-27 Parts at 3 Release Stages
01 · Stock
Product identity and ordered requirements.
02 · Sample
Complete route and locating relationship.
03 · Release
Final working surfaces and evidence.
Receive the Specified ZA-27 Product
Identify the ZA-27 grade, ordered standard, revision, casting route, stock, lot identity and required records.
- ZA-27 identity, casting product and agreed supplied state.
- Controlled datums, accepted edges and working surfaces.
- Agreed sampling, measurement state and test scope.
Approve Your Complete First-Route Geometry
Approve flange, bore, foot and port relationships after the complete route. A first casting sample and a first finished-route sample answer different questions.
- ZA-27 identity, casting product and agreed supplied state.
- Controlled datums, accepted edges and working surfaces.
- Agreed sampling, measurement state and test scope.
Inspect Your Final Mounting Interface
Verify the final cartridge bore, round flange, eccentric port or yoke foot pattern in the measurement state specified on your drawing.
- ZA-27 identity, casting product and agreed supplied state.
- Controlled datums, accepted edges and working surfaces.
- Agreed sampling, measurement state and test scope.
Connect Protected Parts to Their Records
Agree protection, cleanliness, lot identity and receiving documents for the actual mating surfaces.
- ZA-27 identity, casting product and agreed supplied state.
- Controlled datums, accepted edges and working surfaces.
- Agreed sampling, measurement state and test scope.
Coordinate Your Drawing and Receiving Requirements
Connect China manufacturing with Dallas-area coordination for drawing review, sample decisions and delivery requirements.
6 Inputs for Your ZA-27 Casting Quote
01CAD + controlled drawing + mating parts
02ZA-27 + product standard and revision
03Casting route + usable machining allowance
04First order + repeat quantities
05Load, temperature + final finish and fit
06Material records + inspection + delivery
Compare the Same Finished Condition
Your ZA-27 casting quote should identify the same route, drawing revision, usable stock and final acceptance. Compare tooling and repeat demand on that basis.
Answers Before You Specify ZA-27
Is ZP2720 the same as ZA-27?
ZP27 / ZP2720 and ZnAl27Cu2 are common casting references associated with ZA-27. Retain the complete specification and revision. IZA lists ZL27 / ZL2720 separately for prototype alloys.
Can ZA-27 be cold chamber die cast?
Yes. Review the actual cold-chamber casting route, geometry, tooling and usable machining stock with your quote. Do not automatically apply a ZA-8 hot-chamber route.
Can ZA-27 be machined?
Yes. Identify locating support, usable allowance, bore and port access, accepted burrs and the final condition inspected after machining and finishing.
What information is needed for a ZA-27 casting quote?
Provide CAD and controlled drawing, grade and product standard, casting route, quantities, load and temperature, final finish, free or installed fit and receiving records.
Is ZA-27 suitable for bearing parts?
Review load, speed, temperature, lubrication, mating material and installed clearance. Request appropriate duty data and acceptance; alloy identity alone does not establish service life.
What causes porosity in ZA-27 castings?
Review casting route, section layout, feeding or filling approach and agreed defect limits with the foundry. Identify critical bores or sealing surfaces and any separately required integrity test.
What ZA-27 die casting tolerances can you quote?
Specify cast versus machined features, datums, limits and final finish. Your quote confirms the reviewed geometry and inspection scope, without a universal tolerance promise.
Is plating recommended for ZA-27?
Eastern Alloys does not recommend plating ZA-27. Review an alternative finish against appearance, exposure, preparation, masks, sample acceptance and final dimensions before approving your route.
