Split Ring Blank technical overview.
Split Ring Blank from JINYI is specified by its application, material and connection or drawing requirements. Review the selection schedule and enquiry requirements below to prepare a quotation for your project.
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Specification basis: The schedule below distinguishes industry geometry from order-specific requirements. Final dimensions, performance and price are defined in the approved quotation and drawing. Photographs identify the product family.
What is a split ring blank?
A split ring blank is an open annular component whose split allows a later assembly around an existing feature. The blank is defined by its ring section, split geometry and intended joining or fastening arrangement.

Key dimensions and installation fit
Define assembled diameters, number of matched pieces, joint gaps and end-face details. A complete split-ring set and an individual half are different units of supply. Assembly clearances must come from the controlled drawing. Compare related configurations: machined ring blank, segment ring blank.
How to specify the split ring blank
Provide the assembled ring diameter, split gap and end-face geometry. Identify whether the order covers one open ring, multiple matched segments or a finished bolted assembly. A split must be included in the structural design; it cannot be treated as a seamless ring.
Identify the stock form and the stage of manufacture: cut blank, rough-machined part or finished component. Overall diameter, bore, thickness and any segment angle establish the basic geometry. Datum locations, allowances and machining sequence determine how the blank becomes the final part.
Technical data for the split ring blank
| Product form | Split annular blank |
|---|---|
| Outside diameter | Finished and stock diameters to drawing |
| Bore diameter | To the controlled ring drawing |
| Axial thickness | Finished and stock thicknesses to drawing |
| Matched pieces | Specify number of pieces per complete set |
| Split detail | Joint gaps, end faces and closure method to drawing |
| Material grade | Specify carbon, alloy or stainless steel and supplied condition |
| Machining allowance | Agreed for each machined surface |
| Tolerance basis | Individual drawing limits; general class only when specified |
| Mass and quotation | Calculated from the confirmed geometry and material |
Sizes and dimensional requirements
Use the named standard for standardized interfaces and the controlled drawing for custom dimensions. Confirm units, diameter datums, minimum finished thickness and any mating-component requirements. A catalogue dimension is not a universal tolerance, capacity or pressure rating.
Dimensions and tolerance schedule
| Individually toleranced features | Limits and datum system on the approved drawing |
|---|---|
| General tolerances | Standard, edition and class apply only when specified |
| Functional acceptance | Agreed inspection method and acceptance criteria |
Individually toleranced dimensions and functional requirements take precedence over a general tolerance note. Specify the governing standard and acceptance method in the order documents; a tolerance shown by another manufacturer does not establish JINYI manufacturing capability.

Materials, inspection and documentation
Check the drawing revision, stock dimensions, edge condition and material identification. Record dimensions before and after machining where allowances are specified. For split or segmented parts, agree whether inspection is performed free or assembled. Holes, sealing faces, joining hardware and heat treatment must be specified separately.
State the exact material designation and supplied condition, the controlled drawing revision and the required inspection reports before ordering. Separate material certification from dimensional checks and functional or pressure testing. Agree the acceptance limits for the ordered component and identify any additional witnessing, marking or packing requirements. Use the custom manufacturing and OEM guidance to prepare the drawing-defined supply scope.
Installation and handling guidance
Check the assembled fit using the nominated mating component or fixture. Do not force the gap closed without a specified closure method. Mark paired pieces where required and protect the split faces during transport and subsequent processing.
Where the split ring blank is used
- Machining stock. Drawing-defined rings and discs for subsequent boring, turning or drilling.
- Equipment fabrication. Custom interfaces, spacer parts and shaped assembly components.
- Replacement parts. Controlled geometry for comparison with the existing component and mating surfaces.
How to order a split ring blank
Send the required configuration, material, quantity, destination and controlled drawing to JINYI. Identify changed dimensions, mating components, operating conditions and inspection scope. For a repeat order, include the previous approved revision and state any changes. The final quotation defines the supplied geometry, documentation, price and delivery terms.
Quantity prices and order preparation
| 1–9 sets | US$100.00 / complete set |
|---|---|
| 10–49 sets | US$100.00 / complete set |
| 50+ sets | US$100.00 / complete set |
Indicative budget pricing selected from public supplier listings. Uses US$100 from the related US$100–1,000 machined-ring family as a budget reference for a complete split-ring set. Splitting, matched assembly and finish require separate quotation. Rongcheng machined-ring family benchmark. Final JINYI pricing depends on the confirmed specification, quantity, inspection and delivery scope. Quantity-specific terms are confirmed with the final quotation.
Engineering and pricing references
APPORO general machining tolerance guidance; CMEC Wuxi forging listings. These sources explain the named product geometry or selection method. Their certifications, rated capacities and manufacturing capabilities belong to the named organizations.
Other JINYI products worth comparing
Review the industrial pipe flanges catalog for adjoining components, connection choices and alternative product forms.
Request a split ring blank quotation from JINYI with the drawing, material and quantity required for your project.
Split Ring Blank selection and quotation checklist
The split ring uses separate pieces to form the assembled profile. State the number of pieces per complete set, joint gaps and whether dimensions apply before or after assembly. Use the photographed product form to identify the arrangement, then use the controlled drawing to define what will be supplied. Similar-looking components can have different end details, load paths or maintenance requirements.
Split Ring Blank dimensions and tolerances
The first comparison for this split ring blank is segment angle and assembled diameter. Mark the dimensions that control mating, alignment and installation space on the enquiry drawing. Give units for every value and identify the datum from which it is measured. If a dimension is critical, specify its individual tolerance and measurement method rather than relying on a general tolerance note.
Define assembled diameters, number of matched pieces, joint gaps and end-face details. A complete split-ring set and an individual half are different units of supply. Assembly clearances must come from the controlled drawing. Review the selection schedule together with the final drawing and inspection requirements.
Prepare the material and interface information
For a split ring blank enquiry, identify the required material designation and supplied condition. Describe the mating components, attachment method and environment. Include the operating temperature and any relevant pressure, movement or structural load. These inputs should describe the actual installation, including changes between normal operation, start-up and maintenance where applicable.
Specify coatings, surface finish and marking separately from the base material. If traceability is needed, identify the record required and how it must correspond to the delivered component. Agree whether inspection covers dimensions, material documentation, welds or functional testing; these are different checks with different acceptance criteria.
Custom split ring blank quotation
Attach the latest drawing revision, required quantity and delivery destination when contacting JINYI. Highlight departures from the illustrated arrangement, including changed dimensions, connections, finish and packing. For repeat orders, reference the approved configuration and list changes explicitly so an earlier drawing is not assumed to remain current.
Compare quotations using the same geometry, grade, supplied condition, unit of supply and inspection scope. A piece, a segment and a complete assembly can represent different quantities. Confirm quantity discounts and delivery terms with the final quotation.
Compare related component arrangements
Evaluate this split ring by its actual segment angle and assembled diameter and the required ring blank arrangement. The photographs below show separate JINYI products for comparison. They are linked to their own technical pages and are not additional gallery views of this split ring blank.
| Photo | Related product | Selection detail |
|---|---|---|
![]() | Machined Ring Blank | Ring diameters and machining allowance. Compare this separate product when the drawing requires its particular arrangement. |
![]() | Segment Ring Blank | Sector angle and mating geometry. Compare this separate product when the drawing requires its particular arrangement. |
![]() | Profiled Ring Blank | Recess depth and remaining thickness. Compare this separate product when the drawing requires its particular arrangement. |
Questions to resolve before ordering
Which dimensions need checking first?
Start with segment angle and assembled diameter and the mating or mounting detail. Check nominal designations against measured dimensions, then review the installation envelope. Photographs help identify the form; the drawing provides the dimensional basis for acceptance.
What should the quotation include?
A split ring blank quotation should identify the configuration, drawing revision, material, quantity, price basis and agreed inspection records. Keep these details together with the approved order so receiving inspection can compare the delivered product with the specified component.
Independent terminology reference
ASME flange standard scope provides an independent reference for component terminology. Use the specified standard and edition where required by the project. This link does not establish JINYI certification, product approval or interchangeability with another manufacturer.
- Spec
- Defined configuration
- Grade
- Material requirement
- US$100.00
- Indicative unit price
- 3
- Quantity bands
- Product arrangement — Split annular blank
- Engineering selection — Define assembled diameters, number of matched pieces, joint gaps and end-face details. A complete split-ring set and an individual half are different units of supply. Assembly clearances must come from the controlled drawing.
- Quotation scope — Material, drawing revision, quantity, inspection and delivery terms confirmed together
At a glance
- Product form
- Split annular blank
- Product form
- Split annular blank
- Outside diameter
- Finished and stock diameters to drawing
- Bore diameter
- To the controlled ring drawing
- Pricing
- Indicative USD pricing
| Product form | Split annular blank |
|---|---|
| Outside diameter | Finished and stock diameters to drawing |
| Bore diameter | To the controlled ring drawing |
| Axial thickness | Finished and stock thicknesses to drawing |
| Matched pieces | Specify number of pieces per complete set |
| Split detail | Joint gaps, end faces and closure method to drawing |
| Material grade | Specify carbon, alloy or stainless steel and supplied condition |
| Machining allowance | Agreed for each machined surface |
| Tolerance basis | Individual drawing limits; general class only when specified |
| Mass and quotation | Calculated from the confirmed geometry and material |
| Individually toleranced features | Limits and datum system on the approved drawing |
|---|---|
| General tolerances | Standard, edition and class apply only when specified |
| Functional acceptance | Agreed inspection method and acceptance criteria |



















