RUS19069 GR3 / RUS19069KS Linear Ball Bearing With Lubriion Facility

1. Product Overview

RUS19069 GR3 and RUS19069KS are full complement cylindrical roller linear bearing units, widely used as heavy-duty linear sliding components for machine tools, automated production lines and pressing equipment.

RUS19069 GR3 adopts GR3 standard precision grade, open full roller structure without retainer, maximum roller arrangement to realize ultra-high load capacity; RUS19069KS adds integrated steel retainer structure, stable roller limit, suitable for high-frequency reciprocating motion with slight speed requirement.

Both models share unified installation boundary dimensions, interchangeable with the same linear guide rails. The whole sliding base is forged alloy steel with integral quenching, ultra-precision mirror grinding raceway surface, cylindrical rollers made of GCr15 bearing steel. The line contact rolling structure greatly improves rigidity and impact resistance, effectively avoids large elastic deformation under long-term heavy static load. Optional double-sided composite dustproof seals can block iron filings, cutting fluid and workshop dust, adapting to metal cutting and heavy forming harsh working environment.

2. Technical Specifications

Model: RUS19069 GR3, RUS19069KS
Overall matched installation size: unified for two types
Rolling element: Cylindrical roller
Raw material: Alloy steel slide base, GCr15 fully quenched rollers
Precision class: GR3 standard precision grade for heavy load static operation
Structure difference:

• RUS19069 GR3: Full complement cage-free roller design, maximum roller quantity, maximum load capacity
• RUS19069KS: Stamped steel cage structure, rollers fixed evenly, stable high-frequency reciprocating movement

Sealing configuration: Open type / double lip contact dustproof oil seal optional
Lubrication: Side grease injection nipple, compatible automatic centralized lubrication system
Working temperature range: -20℃ ~ 120℃
Dynamic load rating: 68kN; Static load rating: 106kN
Limiting speed: GR3 low-speed heavy load; KS medium low-speed frequent reciprocating

3. Core Advantages

1. Two structural versions of RUS19069 for differentiated working conditions: GR3 for ultra-heavy static intermittent load, KS for frequent reciprocating heavy load, one model platform covers multiple application demands.
2. Full cylindrical roller line contact layout, ultra-high structural rigidity, effectively suppress vibration during cutting and pressing processing, stabilize equipment running precision for a long time.
3. Unified installation size of GR3 and KS, direct interchange without modifying equipment sliding base, convenient spare parts inventory management and maintenance replacement.
4. Optional multi-layer composite dustproof sealing assembly, multi-stage isolation of metal debris and cooling liquid, prevent roller rust and raceway peeling failure, extend service cycle in machining workshop.
5. Integrally forged thickened slide base with low internal residual stress after heat treatment, strong anti-deformation performance under long-time continuous heavy pressure.
6. Built-in closed internal lubrication channel, uniform grease distribution on all rollers, reduce manual refueling frequency and equipment shutdown maintenance time.
7. Multiple precision and preload options, match light finishing, heavy rough cutting, hydraulic pressing and forming different processing scenarios.
8. Complete customized service: manganese phosphate anti-rust surface treatment, OEM laser marking on slide side, neutral export carton anti-rust packaging, special high temperature resistant grease pre-filling.

4. Application Scenarios

RUS19069 GR3 / RUS19069KS full roller linear bearing units are core high-load linear motion spare parts for heavy industrial machinery:

• RUS19069 GR3 Application: Hydraulic press sliding table, heavy mold clamping equipment, stone cutting machine, low-speed large load gantry fixed sliding axis
• RUS19069KS Application: Heavy CNC milling machine feed axis, automated heavy palletizing equipment, woodworking heavy cutting machine, forging auxiliary sliding mechanism

General matching fields: Heavy automated production line, injection molding machine moving template, metallurgical auxiliary conveying sliding frame, construction machinery precision heavy sliding assembly
Aftermarket fully interchangeable RUS series full roller linear slide units, cost-effective high-rigidity heavy load linear motion solution for machine tool manufacturers, automation OEM and mechanical maintenance factories bulk procurement.

5. Why Choose GQZ Bearing

1. 25 years professional manufacturing experience of RUS series full complement roller linear bearing units including RUS19069 GR3 and RUS19069KS.
2. Strict raw material incoming inspection: alloy steel blank metallographic test and hardness inspection, GCr15 roller dimensional sorting screening before mass production.
3. Full production process precision control: forging, quenching & tempering, raceway ultra-precision grinding, roller assembly preload calibration, finished product comprehensive testing.
4. Complete professional testing equipment, each batch undergoes rigidity test, long-cycle heavy load fatigue aging test, dust & liquid sealing durability simulation test before delivery.
5. Professional linear motion engineering team provides one-on-one model selection guidance, load calculation, lubrication scheme and installation technical support within 24 working hours.
6. Stable mass production capacity, competitive factory direct wholesale price, neutral moisture-proof export packaging, support mixed batch delivery of GR3 and KS two structures.

We focus on full complement roller high-load linear slide design, all-weather dustproof sealing structure, unified interchangeable installation standard, long-term win-win cooperation with global CNC machine tool and heavy automation equipment spare parts buyers.

6. Quality Control

1. Raw Material Inspection: Alloy steel slide blank and roller raw material chemical composition, hardness and internal flaw detection.
2. Heat Treatment Process: Integral quenching + low temperature tempering, eliminate internal residual stress to prevent long-term service deformation.
3. Raceway Precision Grinding: Multi-step fine grinding process, strictly control raceway roughness and geometric tolerance to maintain stable long-term motion precision.
4. Roller Sorting Screening: High-precision dimensional classification of cylindrical rollers, ensure consistent assembly clearance and uniform preload.
5. Sealing Assembly Test: Oil seal press fitting and reciprocating dust & cutting fluid immersion simulation test, verify long-term sealing performance.
6. Finished Product Comprehensive Inspection: Dynamic/static load test, overall rigidity detection, preload uniformity inspection, full appearance defect screening.
7. Packaging & Shipment: Anti-rust oil coating + moisture-proof carton packaging, each batch attached official inspection report, special anti-rust protection for long-distance sea transportation.

7. Get A Quote Now

If you need RUS19069 GR3 and RUS19069KS full complement roller linear bearing units for hydraulic press, CNC machine tool manufacturing, heavy automation equipment assembly and mechanical maintenance bulk matching, send your purchase inquiry directly.

You will receive full professional supporting services after submitting inquiry:

1. Official sealed formal quotation reply within 24 working hours, clear unit price, MOQ, delivery cycle and export packaging standard.
2. One-on-one technical model selection guidance: equipment load calculation, GR3/KS structure selection, precision/preload grade matching, lubrication system recommendation from professional linear motion engineers.
3. Customized product solution support: surface anti-rust coating, OEM laser marking, high temperature grease filling, non-standard lengthened slide block customization.
4. Large order preferential factory direct price, stable supply cycle, support mixed batch delivery of RUS19069 GR3 and RUS19069KS two structures.

Please provide your required purchase quantity, matched linear guide rail model, equipment type and workshop dust/cutting fluid working environment to obtain detailed formal quotation document.

8. FAQ

Q1: What is the difference between RUS19069 GR3 and RUS19069KS?

A1: GR3 is cage-free full roller structure with maximum load capacity, suitable for low-speed ultra-heavy static load working conditions; KS is equipped with steel retainer to fix rollers evenly, stable performance under frequent reciprocating movement with medium low speed.

Q2: Can two models be replaced with each other on the same equipment?

A2: Yes, they share completely consistent installation dimensions, can be swapped directly without modifying the sliding base or guide rail.

Q3: Can RUS19069 series linear slides be used in workshop with iron filings and cutting fluid?

A3: Yes, optional double-sided multi-layer composite dustproof oil seal can effectively block metal debris and cooling liquid invasion, regular grease refueling can extend service life significantly.