THK YJB09968-GK Linear Bearing Block Oal HSR35 5-5/16

( Brand: Thk ), ( Manufacturer Part Number: YJB09968-GK ), ( Model: HSR35 ), ( Part Type: Bearing Linear Block ), ( Country Of Manufacture: Japan )

Review THK Linear Bearing Block 5-5/16 Inch Oal

The **YJB09968-GK HS-R35 Linear Bearing Block** is a high-performance, precision-engineered component designed to deliver exceptional smoothness, durability, and reliability in linear motion applications. This compact yet robust bearing block features a **5-5/16" (5.3125") overall length**, providing an optimal balance between load capacity and installation flexibility for a wide range of mechanical systems. Constructed from a **high-quality steel housing** with a **hardened and ground raceway**, this bearing block ensures minimal friction and wear, making it ideal for applications requiring precise, repeatable motion, such as CNC machines, automated assembly lines, robotics, and industrial conveyors.

The **HS-R35 series** incorporates a **full complement of recirculating ball bearings**, which distribute load evenly across the raceway, reducing heat generation and extending the lifespan of both the bearing and the mating shaft. The **GK variant** is equipped with a **sealed design**, protecting internal components from contaminants like dust, chips, and moisture, while also preventing lubricant leakage a critical feature in harsh or unprotected environments. This sealing mechanism enhances the bearing s longevity and reduces maintenance requirements, ensuring consistent performance over extended operational periods.

The **5-5/16" overall length** allows for versatile integration into existing systems, accommodating shafts ranging from **0.5" to 0.75" in diameter** (depending on the specific shaft tolerance and application). The bearing block s **precisely machined bores** and **tight tolerances** ensure a snug fit, minimizing axial and radial play while maintaining smooth operation. Additionally, the **integrated lubrication grooves** facilitate the distribution of grease or oil, further reducing friction and preventing premature wear, even under heavy loads or high-speed conditions.

Beyond its mechanical advantages, the **YJB09968-GK HS-R35** is engineered for ease of installation and maintenance. Its **standardized mounting holes** (typically M6 or similar, depending on the series) allow for quick and secure attachment to guide rails, frames, or other structural components, while its **modular design** enables easy replacement if damage occurs. The bearing block s **low friction coefficient** and **high load-bearing capacity** both static and dynamic make it suitable for applications involving frequent starts, stops, or rapid directional changes without compromising performance.

Whether used in **high-precision manufacturing equipment, medical devices, or automated material handling systems**, this linear bearing block delivers a dependable solution for demanding motion control requirements. Its **durability, resistance to wear, and ability to operate efficiently under varying conditions** make it a cost-effective choice for engineers and designers seeking a balance between performance and longevity. With proper lubrication and maintenance, the **YJB09968-GK HS-R35** ensures reliable, low-friction linear motion, contributing to the overall efficiency and productivity of any mechanical system it serves.

### **Pros and Cons of buying a YJB09968-GK HS-R35 Linear Bearing Block (5-5/16" OAL)**

1. **High Load Capacity** The HS-R35 series is designed for heavy-duty applications, making it suitable for machinery requiring smooth, stable linear motion under significant loads. This bearing block can handle axial and radial forces effectively, reducing wear and tear on other components.

2. **Low Friction and Smooth Operation** The precision-ground steel shaft and high-quality cross-roller design minimize friction, allowing for efficient movement with reduced energy loss. This is particularly beneficial in automated systems where speed and precision are critical.

3. **Durability and Longevity** Constructed from hardened steel, these bearing blocks are resistant to deformation and wear, extending the lifespan of the equipment they are integrated into. The sealed design also protects against dust, debris, and contaminants, which can prolong maintenance intervals.

4. **Compatibility with Standard Shafts** The 5-5/16" (5.3125") outer diameter and 0.5" (12.7 mm) shaft diameter fit common industrial shafts, making it easy to integrate into existing or new designs without extensive modifications.

5. **Precision Engineering** The tight tolerances ensure minimal play, which is essential for applications requiring consistent positioning, such as CNC machines, robotics, or conveyor systems. This precision reduces the risk of misalignment-related failures.

6. **Easy Installation and Maintenance** The bearing block is designed for straightforward mounting, often requiring only basic tools. Some models include pre-lubricated grease fittings, simplifying upkeep. Regular lubrication can further enhance performance and longevity.

7. **Versatility** Suitable for a wide range of industries, including automotive, aerospace, medical equipment, and industrial automation. Its adaptability makes it a cost-effective choice for various applications.

8. **Noise Reduction** The smooth rolling motion of cross-rollers generates less noise compared to sliding bearings, contributing to quieter operation in sensitive environments.

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1. **Higher Initial Cost** Compared to basic sliding bearings or bushings, cross-roller linear bearing blocks are more expensive upfront. This may be a barrier for small businesses or projects with tight budgets.

2. **Sensitivity to Misalignment** While designed for precision, these bearing blocks can be sensitive to shaft misalignment or improper installation. Misalignment can lead to premature wear, increased friction, or even failure if not corrected.

3. **Requires Proper Lubrication** Unlike some sealed bearings, HS-R35 blocks may require periodic lubrication to maintain optimal performance. Neglecting lubrication can lead to overheating, increased wear, or seizure.

4. **Limited Self-Adjusting Capability** Some linear bearings can compensate for minor shaft deviations, but the HS-R35 may not adjust as flexibly to significant shaft wobble or bending. Ensuring a perfectly straight shaft is critical.

5. **Specialized Installation Knowledge** Improper mounting (e.g., incorrect preload, misalignment, or over-tightening) can void warranties or reduce performance. This may require technical expertise or additional training for installation.

6. **Weight** The robust construction of these bearing blocks makes them heavier than alternatives like plastic or bronze bushings. This could impact the overall weight and inertia of the system, particularly in high-speed applications.

7. **Potential for Contamination** While sealed, the bearing block s open design (if not fully enclosed) can still be affected by dust, chips, or other debris in industrial environments. Additional sealing or shielding may be necessary in harsh conditions.

8. **Limited Availability of Replacement Parts** Depending on the manufacturer, finding replacement cross-rollers or seals may be more challenging than for standard bearings. Stocking spare parts may be necessary for long-term reliability.

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The **YJB09968-GK HS-R35 linear bearing block** is an excellent choice for applications demanding **high load capacity, precision, and durability**, such as industrial automation, CNC machines, or robotic systems. Its cross-roller design ensures smooth, low-friction operation and long-term reliability, making it ideal for heavy-duty or high-precision environments. However, the **higher cost, sensitivity to installation, and maintenance requirements** (e.g., lubrication) may pose challenges for smaller-scale or less technically sophisticated projects.

For **budget-conscious or low-load applications**, alternatives like sliding bearings or plastic bushings might be more economical. Conversely, if **precision, load-bearing capacity, and longevity** are priorities, the HS-R35 is a justified investment.

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- Your application involves **high axial or radial loads** (e.g., linear slides, conveyor systems, or automated machinery).

- **Precision and smooth motion** are critical (e.g., CNC tables, robotics, or medical equipment).

- You can **ensure proper installation, alignment, and lubrication** to maximize performance.

- The **long-term cost savings** from reduced wear and maintenance outweigh the higher upfront expense.

- Your budget is **strictly limited**, and lower-cost bearings (e.g., sliding or ball bearings) suffice.

- The application involves **low loads or intermittent use**, where simpler bearings would work.

- You lack **technical expertise** for proper installation and maintenance.

For most **industrial or high-performance applications**, the **YJB09968-GK HS-R35 is a strong recommendation** due to its reliability and efficiency. Pair it with proper shaft support, alignment tools, and a lubrication schedule to ensure optimal performance.

Details:

Weight lbs, oz: 5,13. Country of Manufacture: Japan. Items in Lot: Next Day Second Air Services are available.

LOCAL PICK-UP, Prefer to pick it up yourself. After the return period has ended, you can no longer product. Will there be a dock or forklift. Condition: Used.

We choose the carrier. Consignee: B. Need it urgently.

All goods are so AS IS' and WITH ALL FAULTS meaning, without limitation, that. Your phone number and business name. Internal ball bearings visible. Model: HSR35.

MPN: YJB09968-GK. Shows normal signs of usage.

part #: yjb09968 prices

• $68.83-$225.00

specifications linactuat:

• brand: Thk
• mpn: Yjb09968-gk
• model: Hsr35
• part type: Bearing Linear Block
• country of manufacture: Japan

seller linactuat:

• rating: 99.8%
• # reviews: 63522
• city: Middlebury, Indiana

general linactuat:

• Industrial Automation Motion Controls > Rotary Linear Motion > Lead, Ball Roller Screws
• condition: Used

payments linactuat:

• wallet: Apple-pay
• credit card: Diners-club
• other

shipping linactuat:

• carrier: USPS
• transit: 3-8 Days
• service: USPS Priority Mail
• type: Fixed
• cost: $11.99
• class: Expedited

offer linactuat:

• started: March 24, 2026
• options: Ship-to-home
• best offers: True
• availability: In Stock
• sold: 0
• quantity: 1

returns linactuat:

• time: 30 Days
• method: Money back
• policy: Returns Accepted
• paid by: Buyer

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