Top Surface Mount Linear Bearing HSR15R1SS HSR15R1UU GK Guideway Block 15x34x28mm

1.Product Overview

HSR15R1SS and HSR15R1UU(GK) are standard short-type four-way equal-load linear guide sliders for 15mm wide linear rails, belonging to HSR-R compact series LM guides. The core adopts 4-row 45° steel ball circulation design, bearing equal load in radial, reverse radial and horizontal directions, with strong rigidity and automatic absorption of minor installation surface errors.

• HSR15R1UU(GK): Double-sided UU integrated rubber double lip seal, standard general dust-proof version, matched with GK standard lubrication accessory structure, suitable for ordinary production workshop environmentTHK.
• HSR15R1SS: Enhanced SS double-layer composite metal dust-proof seal, stronger anti-cutting fluid and fine powder blocking ability, for dusty, coolant splashing harsh working conditionsTHK.

The whole slider unit is made of fully quenched GCr15 bearing steel, ultra-precision grinding arc raceway with graded high-precision steel balls, built-in steel retainer to prevent steel ball falling off after separating the slider from the rail. It features low friction, stable reciprocating movement, repeat positioning accuracy and long service life, widely matched for CNC engraving machines, automatic assembly lines, packaging automation, textile equipment and precision testing instruments.

2. Technical Specifications

Model: HSR15R1SS / HSR15R1UU(GK)
Applicable rail width: 15mm
Overall slider dimension: Height 28mm, Width 34mm, Length 56.6mmWS-THK BEA...
Mounting hole layout: Top 4 mounting holes 26×26mm, M4 threaded hole
Grease nipple specification: M4×5 front lubrication port
Structure: Four-row circulating steel ball, R standard short block
Raw material: GCr15 bearing steel for slider, rail and steel ball; nitrile rubber/composite metal for seal
Rated dynamic load: 10.9kN; Rated static load: 8.33kN
Standard clearance: Normal clearance CN, C0/C1 preload grade customizable
Seal difference:

1. UU(GK): Double rubber lip seal, standard general dustproof, equipped with GK standard lubricator
2. SS: Composite metal double-layer seal, heavy dust & coolant resistant

Operating temperature: -20℃ ~ 120℃
Single slider net weight: 0.18kgWS-THK BEA...
Max linear reciprocating speed: 1.5m/s
Complete dimension drawings, preload selection guide and long-cycle fatigue test reports can be provided upon request.

3. Core Advantages

1. Four-way equal load 45° contact angle design, uniform bearing capacity in all installation directions, strong rigidity, automatically compensate minor flatness error of mounting base, reduce assembly reject rate.
2. Two seal versions optional: UU(GK) standard seal for ordinary environment; SS composite metal reinforced seal for dust, cutting fluid splash harsh workshop, extend service life.
3. Full GCr15 quenched steel structure, high surface hardness, wear-resistant, maintain stable precision under long-term high-frequency reciprocating operation.
4. Mirror polished arc raceway + strictly sorted steel balls, ultra-low friction coefficient, smooth sliding without jamming, low equipment energy consumption and low running noise.
5. Built-in integrated steel retainer, steel balls will not fall off when the slider is pulled out of the rail, convenient disassembly, maintenance and replacement of partsTHK.
6. Standard front M4 lubrication port, HSR15R1UU(GK) matched with GK standard lubrication assembly, realize long-term stable oil supply, reduce frequent refueling maintenance frequency.
7. Compact R short block size, standard interchangeable overall dimension, directly replace original brand slider without modifying equipment mounting structure.
8. Complete customization service: C0/C1 preload adjustment, stainless steel anti-rust version, OEM laser marking on slider surface, neutral export carton anti-rust packaging.

4. Application Scenarios

HSR15R1SS & HSR15R1UU(GK) four-way load linear guide slider is core precision linear motion component for medium-duty automation equipment:

• Small CNC engraving machine, drilling machine, plasma cutting machine sliding axis support assemblies
• Automatic feeding, sorting, pick-and-place assembly line reciprocating positioning sliding units
• Medium-sized printing machinery paper feeding, tension roller linear transmission components
• Light automatic packaging film conveying, carton forming sliding bearing positions
• Medical inspection equipment, precision measuring instruments, small robot arm linear moving assemblies

Aftermarket fully interchangeable 15mm HSR series linear guide block
Cost-effective multi-direction load precision linear motion solution for CNC OEM, automation equipment factories, printing and packaging machinery bulk procurement.

5. Why Choose GQZ Bearing

25 years professional manufacturing experience for full HSR series four-way equal load linear guide blocks including HSR15R1SS and HSR15R1UU(GK)
HSR15R series fully dimensionally interchangeable with international standard linear guides, consistent load rating, preload tolerance and seal matching standard.
Complete OEM & ODM customization supporting C0/C1 preload grade, stainless steel anti-corrosion treatment and special surface passivation.
Strict full pre-delivery inspection: GCr15 hardness test, steel ball dimensional sorting, long-cycle reciprocating fatigue test, high-speed linear motion aging test.
Professional linear guide engineering team provides one-on-one preload selection, rail-slider matching and installation technical guidance within 24 working hours.
Stable mass production workshop with competitive factory bulk wholesale price for long-term CNC equipment manufacturers, automation machinery suppliers and printing packaging factories.
We focus on four-way equal load circulation ball structure, dual seal optional design, compact interchangeable slider layout and long-term win-win cooperation with global automation linear transmission spare parts buyers.

6. Quality Control

Raw material chemical composition and hardness inspection of GCr15 bearing steel slider and linear rail
Precision forging, quenching tempering and ultra-mirror grinding processing for slider inner arc raceway and rail rolling surface
Steel ball high-temperature quenching and superfinishing, automatic dimensional sorting screening production line
Integrated steel retainer stamping forming and automatic steel ball assembly process to control internal circulation gap evenly
Targeted performance testing: Long-cycle medium-load reciprocating aging test, repeated forward-reverse movement fatigue test, multi-direction combined load deformation detection
Full dimensional tolerance and surface defect recheck before anti-rust oil coating and export carton packaging shipment
Each production batch of HSR15R linear sliders passes full sampling reciprocating load test to guarantee stable long-term high-rigidity precision linear support performance in CNC, automation, printing and packaging equipment.

7. Get A Quote Now

If you need HSR15R1SS reinforced dust-proof linear blocks and HSR15R1UU(GK) standard lubrication linear sliders for small CNC machine tools, automatic assembly lines and light packaging automation equipment maintenance & OEM bulk matching, send your purchase inquiry directly.
You will receive complete professional supporting services after submitting your inquiry:
Fast official factory formal quotation reply within 24 hours
One-on-one preload grade selection, seal version matching and shaft housing installation technical guidance from professional HSR series linear guide engineers
Customized linear motion performance scheme suggestions including C0/C1 preload upgrade options
Competitive direct factory bulk wholesale price for large quantity spare parts orders
Send your required purchase quantity and equipment load & dust environment to obtain detailed sealed formal quotation document.

8. FAQ

Q1: What is the difference between HSR15R1UU(GK) and HSR15R1SS?
A1: HSR15R1UU(GK) adopts double rubber lip UU seal, matched with GK standard lubricator, for clean ordinary workshop; HSR15R1SS uses composite metal double-layer SS seal, better resistance to metal powder and cutting fluid, suitable for harsh dusty processing environment.
Q2: Can HSR15R1SS/UU(GK) directly replace original brand 15R slider?
A2: Yes, overall outer dimension, mounting hole spacing and load parameters are fully universal, no modification to equipment mounting plate required.
Q3: What equipment are HSR15R1SS and HSR15R1UU(GK) widely applied to?
A3: Mainly matched with small CNC sliding axes, automatic assembly line reciprocating sliding parts, printing & packaging conveying equipment, medical precision measuring instruments linear motion structures.