Dongfeng
HGW Series Wide-Body Linear Guideway Carriage Block
HGW Series wide-body flange-type carriage blocks feature a 20–30% wider mounting footprint than standard HGH carriages, delivering 28.4 kN dynamic load capacity and triple-seal contamination defense for heavy gantry CNC mills, inverted vertical axes, and high-moment-load automation frames.
Key Features
- Mounting footprint 20–30% wider than HGH flange type — resists pitch and yaw moment loads on heavy gantry and inverted axes
- Dynamic load capacity 28.4 kN (HGW25CA) with static load 42.1 kN — covers most CNC machining center and gantry mill axis requirements
- Triple-seal system: end seal + side seal strip + bottom scraper blocks chips, dust, and coolant from ball circuit
- Dual lubrication ports (top M6 grease nipple + side oil port) for manual or centralized lubrication
- Four-row ball recirculation carries radial, reverse-radial, and both lateral loads simultaneously
- Self-aligning angular tolerance ±0.5° compensates minor rail mounting errors without preload loss
- Available in sizes HGW 15 / 20 / 25 / 30 / 35 / 45 with C0/C1/C2 preload grades
Common Sourcing Problems & How We Solve Them
Buyer Pain Points
- Inconsistent dimensional tolerances across batches cause machine downtime and re-work costs
- Suppliers unable to provide material certs, inspection reports or CE documentation for customs clearance
- Long lead times and high MOQ requirements make sample evaluation and first orders difficult
Dongfeng Solution
- ISO 9001:2015 process controls with CMM dimensional inspection on every production batch
- Full documentation package: material cert, SGS test report, CE declaration, packing list on request
- Flexible MOQ from 1 piece for samples; bulk order lead time 15–20 working days
Performance Data
- 10+ years of linear motion component manufacturing — 50+ export markets served
- Hardness tested to HRC 58–62; dimensional tolerance held to JIS / ISO / DIN standard grade
- CE & SGS certified; ISO 9001:2015 quality management system in production
Utility record
| Carriage Series | HGW 15 / 20 / 25 / 30 / 35 / 45 |
|---|---|
| Mounting Type | Wide-body flange, 4 top + 2 side bolts |
| Precision Grade | Ground H (P5) / Rolled N (P7) |
| Preload Grade | C0 / C1 (light) / C2 (medium) |
| Ball Material | GCr15 Chrome Steel (52100) |
| Dynamic Load (HGW25CA) | 28.4 kN |
| Static Load (HGW25CA) | 42.1 kN |
| Self-Aligning Tolerance | ±0.5° |
| Sealing | End seal + side strip + bottom scraper |
| Lubrication | M6 top port + side oil port |
Application fit notes
User Pain Point + Solution + Data
Heavy gantry milling machines and large-format CNC routers exert high moment loads that cause standard-width carriage blocks to twist under reversal, producing uneven ball contact and premature raceway pitting. The HGW Series wide-body carriage solves this: the mounting width is 20–30% greater than the HGH flange type, distributing moment load across a longer ball circuit footprint. Dynamic load capacity reaches 28.4 kN on the HGW25CA variant, and the wider bolt pattern resists lift-off forces on inverted vertical axes.
Complete Specifications
| Parameter | Value |
|---|---|
| Carriage Series | HGW 15 / 20 / 25 / 30 / 35 / 45 |
| Mounting Type | Wide-body flange, 4 top-face bolts + 2 side bolts |
| Precision Grade | Ground H (P5) / Rolled N (P7) |
| Preload Grade | C0 (clearance) / C1 (light) / C2 (medium) |
| Ball Material | GCr15 Chrome Steel (52100 equiv.) |
| Dynamic Load Capacity (HGW25CA) | 28.4 kN |
| Static Load Capacity (HGW25CA) | 42.1 kN |
| Self-Aligning Tolerance | ±0.5° |
| Sealing | End seal + side seal strip + bottom scrape |
| Lubrication | Grease nipple M6 top port + side oil port |
| Weight (HGW25CA) | 0.72 kg |
Product Advantages
Wide-Body Moment Resistance
Mounting footprint 20–30% wider than standard HGH flange carriages. The extended bolt pattern resists pitch and yaw moment loads that cause twisting on heavy gantry and inverted axes.
High RigidityTriple-Seal Contamination Defense
End seal, side seal strip, and bottom scraper work together to block metal chips, graphite dust, and coolant spray from entering the ball recirculation channel. Seal lifespan exceeds 5,000 km of travel in tested conditions.
IP40+ SealingDual Lubrication Ports
Top-face M6 grease nipple and side oil port allow both manual greasing and centralized lubrication system hookup. This is critical for multi-axis machines where access to the carriage top is blocked by adjacent structures.
Dual Lube PortsFour-Direction Load Capacity
Four-row ball geometry (two upper, two lower) carries radial, reverse-radial, and both lateral load directions simultaneously. A single HGW carriage can replace a paired opposing setup on compact machine frames.
4-Direction LoadEnterprise Strength
Xiamen Dongfeng Bearing Mechanical & Electrical Co., Ltd.Ltd. has specialized in linear motion components since 2014. Our 5,000 m² facility in Xiamen houses 12 production lines with 200+ skilled employees and over 10 years of manufacturing experience. Monthly capacity exceeds 80,000 carriage units across HGR, HGH, HGW, and EGH series.
Certifications: ISO 9001:2015, CE conformity, SGS factory audit passed. Partners: Components supplied to machine tool builders and automation integrators across 50+ export markets including Germany, Italy, USA, Japan, South Korea, Turkey, and Brazil.
Pre-sales service: Dimensional drawing confirmation within 4 hours, sample units available for qualified buyers. After-sales: 18-month quality warranty, technical support via email/video call, on-site troubleshooting for volume orders. Customer case: Supplied 12,000 HGW25CA carriages to a European CNC machining center OEM, achieving 0.03% defect rate over a 2-year supply period.
Manufacturing, Exhibition & Quality Controltrol
Production Process & Quality Assuranceance
Process: GCr15 raw steel bar → turning (CNC lathe) → induction hardening (HRC 58–62) → precision grinding (raceway flatness ≤3 µm) → ball circuit assembly → preload setting → seal installation → final inspection. Each carriage undergoes 100% dimensional check on CMM before packaging.
Quality testing: Raceway hardness verified on Rockwell tester (batch sampling), dynamic load validated on endurance test rig (500 km travel at rated load), noise measured at 55 dB max @ 1 m/s. Exhibitions: Regularly exhibited at PTC Asia (Shanghai), Hannover Messe (Germany), and CIMT (Beijing) to stay current with industry requirements.
FAQ
What is the MOQ for HGW wide-body carriage blocks?
Standard MOQ is 50 pieces per size and preload grade combination. Mixed-size orders are accepted with MOQ applied per individual SKU. Sample quantities (5–10 pcs) available for qualified buyers — contact us to arrange.
What are the shipping options and typical lead time?
FOB Xiamen port. In-stock sizes (HGW20, HGW25, HGW30) ship within 7–10 business days. Custom preload or non-standard sizes: 20–30 business days. Sea freight to Europe 28–35 days, to USA 18–25 days. Express courier available for urgent sample orders.
How are the carriage blocks packaged?
Individual anti-corrosion oil-coated wrapping in plastic bag, then placed in partitioned cartons (10 pcs per carton for HGW15–25, 5 pcs for HGW30–45). Export-grade wooden pallet packing available for bulk shipments. Custom packaging per buyer requirements accepted.
What payment methods do you accept?
T/T (30% deposit, 70% before shipment), L/C at sight for orders above USD 20,000, PayPal for sample orders under USD 3,000. Western Union accepted for small orders on request.
Can I get free samples before placing a bulk order?
Samples are available with buyer covering shipping cost. For orders reaching 500+ pcs, the sample cost is fully credited toward the bulk order. Contact us with your required size and shipping address to arrange a sample shipment.
Do you offer custom Logo or OEM packaging?
Yes. Custom laser-engraved logo on carriage body is available for orders of 200+ pcs per size. OEM packaging with buyer's brand design is available for 500+ pcs orders. Please provide your logo file (AI or EPS format) and packaging design for quotation.ion.
Request a Quote for HGW Series Carriages
Send your carriage size, preload grade, quantity, and any OEM requirements — we reply within one business day with pricing and lead time.
Request a QuoteWhy Buyers Choose Dongfeng Bearing
Xiamen Dongfeng Bearing Mechanical & Electrical Co., Ltd. — direct factory, 10+ years precision linear motion manufacturing
ISO 9001:2015, CE Declaration of Conformity, SGS test reports. Documentation available for EU and North American import requirements.
12 precision grinding and CNC machining lines; monthly output 500,000+ pieces across linear bearing and guideway series.
Germany, USA, Japan, South Korea, India, Southeast Asia and 40+ other countries. FOB Xiamen with DHL / FedEx / sea freight options.
Technical selection support before order. Dimensional drawing, material cert and inspection report with shipment. 12-month warranty on manufacturing defects.
Manufacturing Process & Quality Assurance
Precision Machining
CNC grinding centers hold ball raceway geometry to ±0.003 mm. Induction hardening targets contact zones to HRC 58–62 without embrittling the full body.
CMM Dimensional Inspection
Every batch passes coordinate measuring machine (CMM) verification. Key dimensions — bore, OD, length, raceway radius — are logged against JIS / ISO tolerance bands.
Certification & QC
ISO 9001:2015 controls govern raw material intake, in-process check, and final inspection. SGS and CE documentation issued on request for each shipment.
Trade Shows & Partnerships
Regular exhibitor at Canton Fair and Hannover Messe. Established supply partnerships with automation integrators and machine tool OEMs across Europe and Asia.
Customer Application Cases
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