Ningbo Fenghua Bolong Machinery Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of metal shim in China. Please feel free to buy durable metal shim made in China here from our factory. All customized products are with high quality and competitive price.
Four Profile Configurations
|
Type |
Profile Feature |
Mounting Hole Configuration |
Typical Application |
|
Double-Ear Diamond Shim |
Diamond profile with ears on both sides |
One hole per ear (two-sided mounting) |
MacPherson strut & air suspension camber/caster alignment |
|
Multi-Hole Ring Shim |
Ring shape with multiple holes around circumference |
Multiple holes (3+) |
Heavy-duty truck axle hub wheel-end clearance adjustment |
|
Miniature Thin Round Shim |
Small-diameter thin ring with large center hole |
No peripheral mounting holes; inner hole locating |
Miniature or compact-space precision positioning |
|
Multi-Profile Four-Hole Shim |
Custom profile with four corner mounting holes |
Four holes (rectangular or trapezoidal pattern) |
Construction equipment & heavy truck attachment alignment |
Core Advantages
Precision Stamping - Manufactured through precision stamping processes, ensuring consistent thickness, accurate hole positions, and clean edges across every batch. Tooling precision guarantees dimensional stability in high-volume production - no secondary fitting required, ready for direct installation.
Accurate Thickness Control - Thickness tolerances are strictly controlled to ensure each shim delivers a predictable geometric change. By combining shims of different thicknesses, cumulative adjustment accuracy down to micrometer levels is achievable.
Full Coverage with Four Configurations - Double-ear diamond for MacPherson and air suspension alignment; multi-hole ring for heavy truck wheel-end adjustment; miniature round for compact-space precision positioning; four-hole custom profile for construction equipment and heavy truck attachment alignment - all supported by a single quality system.
High-Strength Material Options - Available in quality carbon steel or stainless steel. Different grades selected based on application - corrosion-resistant materials for passenger car suspension; high-strength wear-resistant grades for heavy truck and construction equipment.
Surface Protection Options - Available with zinc plating, Dacromet, phosphating, or e-coat finishes to meet salt spray corrosion resistance requirements for chassis and underbody environments.
Easy Installation & Maintenance - Shims install directly at suspension or axle attachment points. Adjustment can be performed without disassembling surrounding components, reducing labor hours. Stacking multiple shims provides flexible adjustment increments while reducing inventory variants.
Complete Dimensional Verification - Thickness, flatness, hole positions, and profile contours are verified by CMM or optical measurement. Full inspection documentation accompanies each batch with complete traceability.
Technical Specifications
|
Parameter |
Details |
|
Product Name |
Metal Shims - Double-Ear Diamond / Multi-Hole Ring / Miniature Thin Round / Multi-Profile Four-Hole |
|
Materials |
Quality carbon steel, stainless steel (selected per application) |
|
Manufacturing Process |
Precision stamping |
|
Thickness Range |
0.1–5.0mm (custom per drawing) |
|
Thickness Tolerance |
±0.02mm (precision grade, process-dependent) |
|
Surface Treatment |
Zinc plating, Dacromet, phosphating, e-coat (selected per requirement) |
|
Typical Applications |
Passenger car suspension alignment, heavy truck axle adjustment, construction equipment clearance compensation |
|
Quality Systems |
IATF 16949 certified manufacturing |
Manufacturing Process
|
Stage |
Key Operations |
|
Stamping |
Precision blanking, piercing |
|
Finishing |
Flatness leveling, deburring |
|
Surface Treatment |
Zinc plating/Dacromet/Phosphating/E-coat |
|
Inspection |
Thickness measurement, flatness verification, visual inspection |
Quality Control
Stamping Phase
Tooling condition monitoring; first-off and in-process sampling for thickness, hole position, and profile dimensions.
Finishing Phase
Flatness verified per batch; burr height controlled to ensure proper seating and safe handling.
Final Release
Thickness sampled per batch; flatness and appearance verified per batch. Coating thickness and salt spray testing on sample basis per batch. Full inspection documentation accompanies each shipment.
Application Scenarios
Double-Ear Diamond Shims
Installed at MacPherson strut control arm attachment points or air suspension height valve connection points. By adjusting shim thickness or quantity, suspension geometry angles change - enabling precise camber and caster alignment to optimize tire contact patch and vehicle handling characteristics.
01
Multi-Hole Ring Shims
Installed on heavy-duty truck axle hub end faces or wheel hub bearing housing mating faces. Ring shims eliminate axial fit clearances or adjust preload, ensuring wheel-end bearing play meets specifications and preventing premature bearing wear.
02
Miniature Thin Round Shims
For precision positioning in miniature or compact spaces. Common in precision adjustment mechanisms or assembly clearance compensation - stacking thin shims to achieve micrometer-level accuracy.
03
Multi-Profile Four-Hole Shims
Installed at construction equipment structural joint connection points or heavy truck attachment mounting faces. Four-hole locating provides precise planar position adjustment - suitable for frame articulation joint clearance compensation and assembly deviation correction.
04
Custom Services
✔️ All four configurations manufactured per customer drawings
✔️ Thickness and thickness combinations customized per alignment requirements
✔️ Surface treatment selected per corrosion protection requirements
✔️ Material grade recommendation per application load and environment
✔️ Prototype quantities for assembly fitment validation
Whether you require double-ear diamond shims for passenger car suspension alignment, multi-hole ring shims for heavy truck wheel-end adjustment, miniature round shims for compact-space positioning, or multi-profile four-hole shims for construction equipment structural alignment - our engineering team provides full support from design review and sample validation through to production delivery.
Contact Us for Your New Project
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