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| Brand Name: | TranzBrillix |
| Model Number: | RGH25HA |
| MOQ: | 5 |
| Price: | 42-50 USD |
| Delivery Time: | 1-7 work days |
| Payment Terms: | T/T,L/C,D/A,D/P,Western Union |
RGH45CA is a 45-size high square roller linear guide block designed for heavy-load linear motion systems where rigidity, mounting stability, and load margin are more important than a compact light-duty structure. As a CA type block, it uses a standard block length with top mounting, making it suitable for machine axes that need strong support but do not require the longer body of the HA version.
With a dynamic load rating of 92.6 kN and a static load rating of 178.8 kN, RGH45CA is positioned for medium-to-large CNC machines, milling equipment, heavy automation axes, and precision motion platforms. The roller structure provides line contact with the raceway, helping the block support heavier working loads and reduce elastic deformation during repeated positioning, cutting, or transfer movement.
For installation, RGH45CA uses M10 × 17 block mounting threads and is matched with RGR45 rails using M12 × 35 rail mounting bolts. The 52.5 mm rail hole pitch and 22.5 mm standard rail end distance should be checked carefully in replacement projects, especially when the existing machine base or rail hole pattern is already fixed.
Compared with smaller RG sizes, RGH45CA provides a larger mounting base and stronger load support. Compared with RGH45HA, this CA version keeps the block shorter and more practical for standard heavy-duty axes where installation space, rigidity, and cost need to be balanced.
To support accurate model selection, the code of RGH45CA roller linear guide block can be understood as follows:
RG: Roller type linear guideway series
H: Square block type
45: Size 45 series, with standard rail width WR = 45 mm
C: Heavy load block type
A: Mounting from top
Common option suffixes:
Z0 / ZA / ZB: Light, medium, or heavy preload
H / P: High or precision grade
In practical selection, RGH45CA refers to a 45-size square type roller linear guide block for heavy-load linear motion systems. The model should be matched with the corresponding RGR45 rail, while preload and accuracy grade should be selected according to the actual machine requirement.
| Item | Specification |
|---|---|
| Model | RGH45CA |
| Series | RG roller type linear guide |
| Block Type | High square type |
| Load Type | Heavy load |
| Mounting Type | Top mounting |
| Assembly Height H | 60 mm |
| Block Width W | 86 mm |
| Block Length L | 153.2 mm |
| Rail Width WR | 45 mm |
| Rail Height HR | 38 mm |
| Block Mounting Thread | M10 × 17 |
| Rail Mounting Bolt | M12 × 35 |
| Rail Hole Pitch P | 52.5 mm |
| Distance to Rail End E | 22.5 mm |
| Dynamic Load Rating C | 92.6 kN |
| Static Load Rating C0 | 178.8 kN |
| Static Rated Moment MR / MP / MY | 4.52 / 3.05 / 3.05 kN·m |
| Block Weight | 3.18 kg |
| Rail Weight | 9.97 kg/m |
Photo Reference:
The photos above show the actual RGH45CA standard square roller block, including the machined mounting surface, side profile, sealing area, and overall surface finish. They are provided to help customers check the real product structure instead of relying only on catalog drawings.
For replacement review, the photos should be checked together with the drawing and technical specifications before order confirmation.
RGH45CA can be used as a cross-reference model for selected 45 size roller guide blocks with similar mounting dimensions and standard block configuration. For replacement projects, rail series, block type, mounting dimensions, preload grade, and accuracy grade should be checked against the original assembly before ordering.
Standard Reference:
The following references are for model comparison and preliminary replacement review only. Final suitability should be confirmed against the original rail series, block dimensions, mounting hole pattern, preload, and accuracy requirements before order.
Performance Consideration:
As the CA standard block version, RGH45CA should be compared with the original assembly by block length, mounting layout, preload grade, and accuracy grade. For replacement review, dimensional matching and running condition are more important than model name similarity.
Important Note:
HIWIN RG series has interchangeable and non-interchangeable versions. Cross-brand replacement is only a reference; rail profile, mounting dimensions, preload grade, accuracy grade, and running clearance must be checked before order.
| TranzBrillix | HIWIN (TAIWAN of China) | THK (Japan) | PMI (TAIWAN of China) | Rexroth (Germany) | TBI (TAIWAN of China) | CSK (TAIWAN of China) | INA (Germany) | NSK (Japan) | IKO (Japan) |
|---|---|---|---|---|---|---|---|---|---|
| RGH45CA | RGH45CA | SRG45CA | MSR45E | R18214232X | TRH45FE | LMR45H | RUE45-E | RA45AN | LRX45 |
The RGH45CA roller linear guide block uses a roller contact structure instead of a conventional ball contact design. This helps increase contact stiffness between the rolling elements and the raceway, making the block more suitable for heavy-load linear motion systems where deformation control is important.
RGH45CA provides a dynamic load rating of 92.6 kN and a static load rating of 178.8 kN. This gives the block a solid load margin for 45 size guideway applications, especially when the axis needs stronger support than smaller RG roller guide models.
For machine axes with offset loads or changing force directions, moment resistance is an important factor. RGH45CA has rated static moments of MR 4.52 kN·m, MP 3.05 kN·m, and MY 3.05 kN·m, helping the block maintain stable support under radial, pitching, and yawing load conditions.
As the CA standard block version, RGH45CA offers a practical balance between rigidity, load capacity, and installation space. Compared with the HA long block type, the CA version keeps the block body shorter, which makes it easier to use in standard heavy-duty axis layouts.
RGH45CA adopts a high square block structure with mounting from the top. The block mounting thread is M10 × 17, giving the block a firm fixing method for machine tables, slide bases, and heavy-duty mechanical assemblies.
RGH45CA is designed to work with the corresponding RGR45 roller guide rail. This keeps block and rail selection clear for new machine design, rail cutting, and matched assembly supply.
The roller guide structure helps RGH45CA maintain stable motion when the guideway is exposed to higher working loads. For equipment that requires repeatable linear movement, firm mechanical support, and improved rigidity, this model provides a stronger option than light-duty ball type linear guide blocks.
| Application Area | Typical Use | Selection Reason |
|---|---|---|
| CNC Machining Centers | X / Y / Z axis guideway support | Handles cutting load, table weight, and repeated positioning movement. |
| Heavy-Duty Milling Machines | Machine table and slide axis | Provides stronger support under vibration and directional cutting force. |
| CNC Grinding Machines | Precision guideway movement | Helps maintain stable motion and controlled deformation during grinding. |
| Drilling and Tapping Equipment | Machine base and feed axis | Square top-mounting structure fits fixed machine layouts. |
| Heavy Automation Axes | Transfer axes and positioning tables | Suitable for heavier fixtures, workpieces, and industrial motion systems. |
| Precision Linear Motion Platforms | Repeated linear positioning | Supports high-rigidity movement with stable load capacity. |
| Support Item | What We Check |
|---|---|
| Model Confirmation | Check model code, block type, rail size, and key mounting dimensions before order processing. |
| Drawing / Sample Review | For replacement projects, drawings, photos, or original samples help reduce selection mistakes. |
| Running Smoothness Check | Check the block and rail assembly for smooth movement, abnormal resistance, and running interruption before shipment. |
| Preload and Accuracy Selection | Select preload and accuracy grade according to machine rigidity, load direction, and installation conditions. |
| Rail Cutting Support | Supply matching RGR45 rails in standard or cut-to-length sizes according to drawing or travel length. |
| Packaging Protection | Protect the raceway, sealing area, and mounting surfaces during packing and transport. |
RGH45CA is a 45 size square type roller linear guide block in the RG series. It uses rollers instead of balls, making it suitable for heavy-load linear motion systems that require higher rigidity and better deformation control.
RGH45CA should be matched with the corresponding RGR45 roller guide rail. For replacement projects, the rail series, mounting dimensions, preload grade, and accuracy grade should be checked before ordering.
RGH45CA is the standard CA block version, while RGH45HA is the longer HA block version. RGH45CA is more practical for standard heavy-duty axis layouts, while RGH45HA is usually selected when higher moment-load support or a longer bearing contact area is required.
RGH45CA can be used as a cross-reference model for selected 45 size square roller guide blocks with similar mounting dimensions. However, replacement should not be confirmed by model name alone. Rail profile, block dimensions, preload grade, accuracy grade, and running clearance should be checked case by case.
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