NanJing TranzBrillix Linear Motion Co., Ltd.

.gtr-container-cs123 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 16px; box-sizing: border-box; } .gtr-container-cs123 .gtr-cs123-title-main { font-size: 18px; font-weight: bold; margin-bottom: 20px; color: #0056b3; text-align: left; } .gtr-container-cs123 .gtr-cs123-title-section { font-size: 16px; font-weight: bold; margin-top: 30px; margin-bottom: 15px; color: #0056b3; text-align: left; } .gtr-container-cs123 .gtr-cs123-title-subsection { font-size: 15px; font-weight: bold; margin-top: 25px; margin-bottom: 10px; color: #0056b3; text-align: left; } .gtr-container-cs123 p { font-size: 14px; margin-bottom: 1em; text-align: left !important; word-break: normal; overflow-wrap: normal; } .gtr-container-cs123 blockquote { border-left: 4px solid #007bff; padding: 10px 15px; margin: 20px 0; background-color: #f8f9fa; color: #555; font-style: italic; font-size: 14px; text-align: left; } .gtr-container-cs123 ul { list-style: none !important; padding-left: 25px; margin-bottom: 1em; } .gtr-container-cs123 ul li { position: relative; margin-bottom: 0.5em; font-size: 14px; text-align: left; list-style: none !important; } .gtr-container-cs123 ul li::before { content: "•" !important; color: #007bff; position: absolute !important; left: -20px !important; font-size: 1.2em; line-height: 1; } .gtr-container-cs123 ol { list-style: none !important; padding-left: 25px; margin-bottom: 1em; counter-reset: list-item; } .gtr-container-cs123 ol li { position: relative; margin-bottom: 0.5em; font-size: 14px; text-align: left; counter-increment: none; list-style: none !important; } .gtr-container-cs123 ol li::before { content: counter(list-item) "." !important; color: #007bff; position: absolute !important; left: -25px !important; font-size: 1em; font-weight: bold; line-height: 1; width: 20px; text-align: right; } .gtr-container-cs123 .gtr-cs123-table-wrapper { overflow-x: auto; margin-top: 20px; margin-bottom: 20px; } .gtr-container-cs123 table { width: 100%; border-collapse: collapse !important; border-spacing: 0 !important; font-size: 14px; min-width: 600px; } .gtr-container-cs123 th, .gtr-container-cs123 td { border: 1px solid #ccc !important; padding: 10px !important; text-align: left !important; vertical-align: top !important; word-break: normal; overflow-wrap: normal; } .gtr-container-cs123 th { background-color: #e9ecef; font-weight: bold; color: #333; } .gtr-container-cs123 tbody tr:nth-child(even) { background-color: #f2f2f2; } @media (min-width: 768px) { .gtr-container-cs123 { padding: 30px; } .gtr-container-cs123 .gtr-cs123-title-main { font-size: 24px; margin-bottom: 30px; } .gtr-container-cs123 .gtr-cs123-title-section { font-size: 20px; margin-top: 40px; margin-bottom: 20px; } .gtr-container-cs123 .gtr-cs123-title-subsection { font-size: 18px; margin-top: 30px; margin-bottom: 15px; } .gtr-container-cs123 table { min-width: auto; } } Miniature Linear Guide Selection for a University R&D Application in Canada In precision engineering and research environments, laboratory applications often impose requirements that differ from standard industrial machinery. A recent university-level R&D project in Canada focused on developing a compact linear motion system that required not only precise positioning, but also long-term material stability under laboratory conditions. This case study outlines the engineering evaluation process behind the selection of a MGN12C stainless steel miniature linear guide, and explains why this configuration was chosen as the core motion component for the project. 1. Application Environment and Technical Requirements As with many R&D applications, the system was still in an early validation stage. This placed greater emphasis on adaptability, material reliability, and environmental resistance rather than on maximum load capacity. The primary technical requirements identified by the engineering team included: Corrosion resistance (critical): Operation in a laboratory environment with potential exposure to humidity, cleaning solvents, or chemical agents. Compact system layout: Rail width limited to 12 mm, with minimal loss of effective stroke due to carriage length. Smooth and stable motion: Low friction and consistent movement for precision positioning tasks. Scalability: Initial short-stroke validation, with future expansion to full-length rails (approximately 2 meters). Engineering perspective:In laboratory automation and research equipment, environmental resistance often has a greater impact on long-term performance than nominal load ratings. While bearing steel may offer higher hardness, stainless steel is frequently preferred in R&D environments to reduce corrosion risk and surface degradation over extended testing cycles. The 12 mm rail width of the MGN12 series represents a practical balance between rigidity and compact size for bench-top precision systems. 2. Engineering Trade-Off: MGN12H vs. MGN12C During the evaluation phase, the engineering team compared two common carriage options within the MGN12 series: the MGN12H (long carriage) and the MGN12C (short carriage). Evaluation Criteria MGN12H (Long Carriage) MGN12C (Short Carriage) Engineering Assessment Rated load capacity Higher Standard Laboratory loads are relatively low; both options are sufficient. Carriage length Longer (typical value, configuration dependent) Shorter (typical value, configuration dependent) Longer blocks reduce effective stroke length. Layout flexibility Limited High Short blocks allow tighter spacing and layout optimization. Moment stiffness Excellent Good Multiple short carriages provide sufficient overall rigidity. Final decision Not selected Selected MGN12C better matchesmatches system constraints. Although the MGN12H offers higher individual load ratings, a detailed review of the system layout showed that the additional carriage length would unnecessarily limit usable travel. The MGN12C (Type C) carriage provides adequate load capacity for the application while offering significantly greater flexibility in carriage placement. This decision reflects a common engineering principle in R&D system design: selecting components based on overall system suitability rather than maximum standalone specifications. 3. Final Configuration and Implementation Plan Sample Validation Phase Linear guide series: MGN12 (12 mm rail width) Carriage type: MGN12C (short carriage) Material: Stainless steel (corrosion-resistant) Sample setup: 150 mm rail with 1 carriage Planned Full System Configuration Rail length: 2,000 mm × 4 rails Total carriages: approximately 40 MGN12C units System layout: multi-carriage configuration The short-rail sample configuration allows the research team to verify assembly accuracy, motion smoothness, and material behavior before committing to the full-length system. At the time of writing, the sample order has been confirmed and is scheduled for initial evaluation. Comprehensive performance testing and long-term reliability assessment are planned after the New Year holiday period. Results from this phase will determine the final deployment of the full system. 4. Why Stainless Steel MGN12C for R&D Applications Based on this project, several general conclusions can be drawn for university and research-oriented motion systems: Environmental tolerance: Stainless steel minimizes the risk of corrosion and surface degradation in laboratory environments where conditions may vary. Modular design flexibility: The compact MGN12C carriage is well suited for prototype systems that require frequent adjustment or reconfiguration. Cost-efficient validation: Using short rails for early-stage testing reduces development risk and allows informed scaling to longer rails once performance is confirmed.

440C Hardened Ø25×562 Linear Shaft for SBR25UU Controlled G6 Fit, Surface Finish, and Straightness We supplied a custom linear motion shaft for a U.S. customer building machine-grade food equipment. The shaft was specified in 440C stainless steel with a required hardness of HRC 52–54, and designed to run with a SBR25UU bearing block. No aluminum support rail was used. The customer emphasized that material and hardness were critical and required strict adherence to the technical drawing. To manage common risks in custom hardened shafts—such as heat-treatment distortion, diameter drift, and surface variation—we followed an inspection-driven workflow aligned to critical-to-quality requirements. This case study was prepared with AI assistance and reviewed internally. All requirements are based on customer specifications and verified through project-level inspection. Project Snapshot Component: Linear motion shaft with custom end machining Size: Ø25 mm × 562 mm Material: 440C stainless steel Hardness requirement: HRC 52–54 Mating bearing: SBR25UU (no support rail) Application: Machine-grade food equipment This summary makes the key technical elements explicit. It allows engineers and buyers to quickly confirm whether this case matches their application, and anchors the discussion to measurable technical requirements rather than general capability claims. Customer Requirements (Critical-to-Quality) The customer stated that hardness and material selection were non-negotiable. In practical terms, this makes hardness, diameter control, surface finish, and straightness stop-ship items. A shaft can appear acceptable but still cause operational issues when paired with a bearing block. Because the shaft operates without a support rail, alignment sensitivity increases. Local deviations in size or straightness can lead to stick-slip motion, noise, or uneven load distribution. Item Requirement Engineering Purpose Material 440C stainless steel Provides high hardness potential and wear resistance after heat treatment Hardness HRC 52–54 Supports stable rolling contact and surface durability Diameter tolerance G6 (–0.007 / –0.020 mm) Balances smooth motion and fit stability with SBR25UU Surface finish Ra ≤ 12 µin Reduces friction and vibration during operation Straightness ≤ 0.03 mm / 300 mm Prevents tight spots and uneven bearing load Part Features and Machining Scope Stepped shoulders Threaded sections Keyway Mounting holes These features increase manufacturing complexity in hardened shafts. Heat treatment can introduce distortion, and poor edge control may affect installation. Even when the main working diameter meets tolerance, transitions and edges still require careful control to protect the bearing block. For food-equipment applications, burrs and trapped chips are treated as quality risks, not cosmetic issues. Cleaning and edge control are therefore integrated into the process. Quality and Production Experience In hardened 440C shafts, most issues are subtle and appear during motion rather than visual inspection. Common examples include local diameter variation, uneven surface finish, or straightness deviation over functional lengths. Our inspection approach reflects how the bearing interacts with the shaft. Diameter is checked at multiple positions and orientations, surface finish is controlled in the working zone, and straightness is evaluated according to drawing requirements. Plan for heat-treatment movement before final sizing Verify diameter stability along the working length Confirm surface finish where rolling contact occurs Deburr and clean all functional transitions Verification and Documentation For custom shafts, verification is based on critical-to-quality items rather than general capability. Inspection and material documentation are prepared per project and aligned with customer requirements. This allows engineering, quality, and procurement teams to review compliance efficiently. Hardness verification Diameter and fit checks Surface finish control Straightness evaluation Food-Equipment Handling and Compliance Boundary The scope of this project focused on material selection, hardness, and dimensional performance for food-equipment use. Full regulatory compliance depends on the complete machine design, operating environment, and customer validation process. We manufacture shafts to the approved drawing and support clean delivery practices including deburring, cleaning, drying, and protective packaging. Typical Deliverables Project-level inspection records Material certificate for 440C stainless steel Protective packaging for transport Optional handling or installation notes Clear deliverables reduce ambiguity and support internal approval processes before installation and commissioning. Need Engineering Support for Your Linear Motion Project? Share your drawing, application details, or technical questions. Our engineering team will review your requirements and provide clear feedback before quotation. Contact Our Engineering Team Typical response within one business day

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The Reality: These are typically 100% mechanically interchangeable with standard ISO RUE/KWVE series guides. The Solution: Don't pay OEM markups. We verify the standard replacement using just 3 physical dimensions. If you run high-output film or printing lines—like W&H Varex blow molders, Bobst presses, or Reifenhauser extruders—you know that downtime costs calculate in thousands per hour. While these machines are engineering marvels, their linear motion maintenance often carries an inflated price tag. It’s a common scenario: You pull a worn block from a film station, clean off the grease, and find a code like this: A typical "Unsearchable" OEM Part: INA F-318994.41-1100 Your local distributor says, "Part not found." The machine OEM quotes a 12-week lead time and a 300% markup. Transparency: What Does This Code Actually Mean? The code F-318994 is a "Special Drawing Number." Manufacturers like Schaeffler (INA) and Bosch Rexroth issue these specifically for OEMs. It acts as a commercial barrier, directing replacement orders back to the machine builder. However, from an engineering perspective, the barrier is thin. Here is the transparent comparison: Feature OEM "Special" Part (F-Series) Standard Equivalent (Stock) Geometry (ISO) Standard ISO Dimensions Identical ISO Dimensions Availability Restricted (OEM Only) Global Stock Technical Difference Specific Grease / Private Label Standard Lithium Grease The Verdict: Unless your application specifically requires exotic vacuum or cleanroom lubrication (rare in standard packaging), the standard ISO block is a direct, drop-in replacement. How to Order the Correct Standard Part We use a "Geometry Verification" method to bypass the unsearchable part number. We need three simple measurements from your existing block: Rail Width (W): The top width of the track (usually 25, 35, 45, or 55mm). Hole Pitch (P): Center-to-center distance of the mounting holes. Block Height (H): Total height from rail bottom to block top. Common Questions (FAQ) Will this affect my machine's warranty? If your machine is past its initial warranty period, using standard ISO components from the same Tier-1 brand (INA/Rexroth) is industry standard practice and ensures the same performance levels. Do you have these in stock? Yes. We stock the standard RUE and KWVE series equivalents commonly used in W&H and Bobst machines, ready for immediate dispatch. Have a "Mystery" Block? Let us Identify it. Don't guess. Send us a photo of the label and the rail width. Upload Your Photo for Free Identification »