Make A Decision Now! Update Your Production Line Or Not?
Inquiry is free, what about checking the price first?
Really want to quit?
Inquiry is free! Could you submit an RFQ first and check the price?
-
Address: Suzhou City, Jiangsu Province, China, 215000
-
Tel: 0086-512-68235075
R162122320 Original Rexroth Linear Bearing Block
BALL RUNNER BLOCK CARBON STEEL KWD-025-SNH-C2-H-1
- Size 25
- Format SNH: Width = slimline, length = normal, height = high
- Runner block body made of unalloyed steel CS
- Preload class C2: Medium preload
- Accuracy class H: High
- Without ball chain
- With initial lubrication and preservation
- Roller bearing grease Dynalub 510
- Without attachment element, left (front reference edge)
- Without attachment element, right (front reference edge)
- Straight lube connection loosely attached.
- Runner block body in standard version
- Overall length of the runner block = 86.2 mm
- Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.
Technical Advantages
- 4-way equal load distribution with Gothic arch groove design
- Recirculating ball bearing system with pre-ground raceways (Ra 0.05μm)
- Dynalub 510 grease for 5+ years maintenance-free operation
- Ultra-low friction coefficient (μ=0.002-0.003) even under full moment loads
Technical Specifications
| Parameter | Specification | Engineering Significance | Standard Compliance |
|---|---|---|---|
| Dynamic Load Rating (C) | 28,600N (6,430 lbf) | Axial force capacity at 100km travel | DIN ISO 14728-1 |
| Moment Stiffness | 510Nm (376 lb-ft) | Resistance to rotational deflection | JIS B 1192 |
| Operating Temperature | -10°C to +80°C (14°F to 176°F) | Performance range with Dynalub 510 | CE Marking |
Test conditions: 23°C ambient temperature, 50% relative humidity
| Product attributes | |
|---|---|
| Version | Ball rail system |
| Nominal size [mm] | 25 |
| Format | SNH – slimline, normal, high |
| Model | High-precision ball runner block |
| Material | Carbon steel |
| Preload class | C2 – Medium preload |
| Accuracy class | H – Highly accurate |
| Seal | SS – Standard seal |
| Ball chain | Without ball chain (standard) |
| Self-aligning for compensation of misalignments | Without self-alignment |
| Width of runner block [mm] | 48 |
| Length of runner block [mm] | 86.2 |
| Height of runner block [mm] | 33.9 |
| Height runner block with guide rail [mm] | 40 |
| Lubrication | With initial lubrication and preservation |
| Dynamic load capacity C100 [N] | 28600 |
| Note: dynamic load capacity C100 | Dynamic load capacities and load moments are based on a stroke travel of 100,000 m according to DIN ISO 14728-1. |
| Maximum acceleration rate amax [m/s²] | 500 |
| Note: Max. acceleration amax | If Fcomb◡> 2.8 • Fpr : amax = 50 m/s2 |
| Maximum permissible linear speed vmax [m/s] | 5 |
| Permissible ambient temperature (min. … max.) | -10 °C … +80 °C |
| Note: permissible ambient temperature (min. … max.) | 100 °C admissible for short time. For operation at negative temperatures, please consult us. |
| Friction coefficient μ | 0.002 … 0.003 |
| Note: friction coefficient μ | Without friction of seal |
| Weight [kg] | 0.6 |
| Dynamic load capacity C50 [N] | 36000 |
| Note: dynamic load capacity C50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Static load capacity C0 [N] | 35900 |
| Dynamic torsional moment load capacity Mt50 [Nm] | 520 |
| Note: Dynamic torsional moment load capacity Mt50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Dynamic torsional moment load capacity Mt100 [Nm] | 410 |
| Note: Dynamic torsional moment load capacity Mt100 | Dynamic load capacities and load moments are based on a stroke travel of 100,000 m according to DIN ISO 14728-1. |
| Static torsional moment load capacity Mt0 [Nm] | 510 |
| Dynamic longitudinal moment load capacity ML50 [Nm] | 370 |
| Note: Dynamic longitudinal moment load capacity ML50 | Dynamic load capacity and load moments based on a travel of 50,000 m. |
| Dynamic longitudinal moment load capacity ML100 [Nm] | 290 |
| Note: Dynamic longitudinal moment load capacity ML100 | Dynamic load capacities and load moments are based on a stroke travel of 100,000 m according to DIN ISO 14728-1. |
| Static longitudinal moment load capacity ML0 [Nm] | 360 |
| Pitch T guide rail [mm] | 60 |
| Dimension A (profiled rail systems) [mm] | 48 |
| Dimension A1 (profiled rail systems) [mm] | 24 |
| Dimension A2 (profiled rail systems) [mm] | 23 |
| Dimension A3 (profiled rail systems) [mm] | 12.5 |
| Dimension B (profiled rail systems) [mm] | 86.2 |
| Dimension B tolerance (profiled rail systems) [mm] | +0.5 |
| Dimension B1 [mm] | 57.8 |
| Dimension E1 [mm] | 35 |
| Dimension E2 (profiled rail systems) [mm] | 35 |
| Dimension E8 (profiled rail systems) [mm] | 38.3 |
| Dimension E9 (profiled rail systems) [mm] | 15.5 |
| Dimension H [mm] | 40 |
| Dimension H1 (profiled rail systems) [mm] | 33.9 |
| Dimension H2 with cover strip (profiled rail systems) [mm] | 24.45 |
| Dimension H2 without cover strip (profiled rail systems) [mm] | 24.25 |
| Dimension K1 (profiled rail systems) [mm] | 17.45 |
| Dimension K2 (profiled rail systems) [mm] | 18.6 |
| Dimension K3 (profiled rail systems) [mm] | 9.5 |
| Dimension K4 (profiled rail systems) [mm] | 9.5 |
| Dimension N3 (profiled rail systems) [mm] | 9 |
| Dimension N6 (profiled rail systems) [mm] | 15.2 |
| Dimension N6 tolerance (profiled rail systems) [mm] | ±0.5 |
| Dimension S2 (profiled rail systems) | M6 |
| Dimension S5 (profiled rail system) [mm] | 7 |
| Dimension S9 | M3x5 mm |
| Dimension S9 thread diameter (profiled rail systems) | M3 |
| Dimension S9 lead [mm] | 5 |
| Dimension T1 min [mm] | 13 |
| Dimension V1 [mm] | 7.5 |
Installation Checklist
- Verify foundation flatness (≤0.01mm/300mm)
- Align reference edge within ±0.02mm parallelism
- Apply initial lubrication using ISO VG 32 oil
- Torque M6 fasteners to 10Nm (88.5 lb-in)
Industry Certifications
- ISO 14728-1:2014 compliant linear motion carriages
- RoHS 3 (2015/863/EU) compliant materials
- TÜV-certified load capacity ratings
FAQ
- 1. What preload class suits high-speed AGV systems?
- For automated guided vehicles, Z1 medium preload provides optimal balance between stiffness and friction coefficient.
- 2. How often should relubrication occur?
- Under normal loads (≤80% C), relubricate every 5,000km travel or 12 months with Dynalub 510.
- 3. Can these linear guide blocks operate in clean rooms?
- Yes, when paired with stainless steel rails (AISI 440C), they achieve Class 5 ISO cleanliness standards.
Why we are more
affordablebetterflexible
affordablebetterflexible
No MOQ LimitSupport small batch procurement, minimum order quantity 1 piece.
Supply Chain Advantages5%-15% comprehensive cost reduction compared to traditional procurement channels.
Direct Supply From The Brand’s FactoryAll products are shipped directly from the brand’s factory, with no secondary resale, maximize your benefits.
