LIN-01RSK Series — Cylindrical Plastic Linear Bearing with Keyway Aluminum Housing
LIN-01RSK — 8 bore sizes · Keyway anti-rotation · Aluminium housing · Replaceable membrane.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
Linear Bearings › LIN Plastic Series
LIN-01RSK Series — Cylindrical Plastic Linear Bearing with Keyway Aluminum Housing
8 bore sizes · Keyway anti-rotation · Aluminium housing · Replaceable membrane
🆕 Series Overview
The LIN-01RSK adds a keyway slot (W dimension) to the outer surface of the LIN-01RS aluminium housing. A key or set screw in the customer housing engages this slot to prevent the bearing from rotating during combined linear-rotary or oscillating-rotary applications. All bore dimensions and load ratings are identical to LIN-01R.
LIN-01RSK is specified wherever the shaft rotates during or between linear strokes — screw-driven actuators, cam mechanisms, and spring-return drives. The keyway provides positive rotational retention without adhesive, allowing bearing removal for membrane replacement without housing damage.
⚙ Key Design Features
Keyway Anti-Rotation
External keyway on housing OD prevents bearing rotation during combined linear-rotary applications.
Complete Unit
Aluminium housing with LIN-01 membrane pre-fitted. Keyway machined into housing OD.
Full Load Ratings
Load ratings identical to LIN-01R for same bore. Keyway adds only rotational constraint.
Dry Running
No lubrication. Maintenance-free. Replaceable membrane for low-cost servicing.
Anodised Housing
Corrosion-resistant for wet and chemically aggressive environments.
Easy Replacement
Remove bearing, press out membrane, press in LIN-01 membrane, reinstall.
📋 Complete Specification Table
ⓘ d1 = shaft bore, d2h7 = housing OD, B = length, W = keyway width on housing OD. Load at P = 5 MPa (dynamic), P = 35 MPa (static). Weight in grams.
| Model | Shaft d1 (mm) | Housing d2 h7 (mm) | Length B (mm) | Slot W (mm) | Dyn Load (N) | Sta Load (N) | Weight (g) |
|---|---|---|---|---|---|---|---|
| LIN-01RSK-10 | 10 | 19 | 29 | 7.3 | 870 | 6090 | 9 |
| LIN-01RSK-12 | 12 | 22 | 32 | 9.0 | 1152 | 8064 | 15 |
| LIN-01RSK-16 | 16 | 26 | 36 | 11.6 | 1728 | 12096 | 21 |
| LIN-01RSK-20 | 20 | 32 | 45 | 12.0 | 2700 | 18900 | 37 |
| LIN-01RSK-25 | 25 | 40 | 58 | 14.5 | 4350 | 30650 | 78 |
| LIN-01RSK-30 | 30 | 47 | 68 | 16.6 | 6120 | 42840 | 122 |
| LIN-01RSK-40 | 40 | 62 | 80 | 21.0 | 9600 | 67200 | 256 |
| LIN-01RSK-50 | 50 | 75 | 100 | 25.5 | 15000 | 105000 | 442 |
🔭 Materials & Performance Data
The LIN sliding membrane is a proprietary high-performance plastic with density 1.48 g/cm³ and kinetic friction coefficient 0.05–0.15 against steel (dry). Max PV value (dry) 0.4 N/mm²·m/s, continuous temperature −50°C to +90°C, short-term peak +120°C. Tensile strength 75 MPa (ISO 527), compressive strength 60 MPa, elastic modulus 2,400 MPa, Rockwell hardness HRR 107. The spiral groove pattern on the membrane bore expels contaminants axially rather than allowing accumulation — the key advantage over ball linear bearings in dusty environments. The aluminium housing is anodised for corrosion resistance.
Max PV (Dry)
0.4 N/mm²·m/s. Kinetic friction 0.05–0.15 against steel without lubrication. Higher PV possible with lubrication.
Temperature Range
Continuous −50°C to +90°C. Short-term peak +120°C. Cold-start capable at −50°C without special preparation.
No Lubrication Required
Dry-running design suitable for food, pharmaceutical, and medical applications where lubricant contamination is prohibited.
Chemical Resistance
Resistant to alkaline detergents, dilute acids, mineral oils, and common industrial solvents. Washable with food-industry sanitisers.
🏭 Typical Applications
Screw-Driven Actuators
Lead-screw and ball-screw actuators where the nut rotates — keyway prevents the linear bearing from co-rotating.
Combined Motion Mechanisms
Cam-following assemblies and rotary-linear transfer mechanisms where the shaft oscillates rotationally.
Spring-Return Actuators
Pneumatic spring-return actuators where the rod rotates during retraction without rotating the bearing.
Retrofit Applications
Replacing worn bearings in housings where a keyway is already machined — LIN-01RSK drops in without modification.
🔧 Installation & Maintenance
🔎 Housing Keyway
Machine matching keyway in customer housing bore to engage W dimension. Tolerance ±0.05 mm.
🔧 Shaft Specification
h6, Ra 0.8 µm. No hardness requirement.
🔁 Keyway Orientation
Orient keyway away from peak load direction.
✅ Membrane Service
Press out worn LIN-01 membrane, press in new. Housing and keyway permanent — not replaced.
🔎 Selection Guide
Select LIN-01RSK when shaft rotation is present and the housing can be machined with a matching keyway. If shaft is purely linear, use LIN-01R without keyway.
①
Confirm Environment
Confirm shaft rotation or combined motion. Machine housing keyway matching W dimension for selected bore.
②
Select Bore & Type
Match d1 bore to shaft. Verify d2h7 fits H7 bore. Confirm keyway W matches housing slot.
③
Verify Load & PV
Load ratings identical to LIN-01R. Verify F ≤ dynamic rating at P = 5 MPa.
④
Contact Us
MOQ 100 units. Contact our team with shaft diameter, housing bore, load, speed, stroke, and environment details.
❓ Frequently Asked Questions
📞 Ready to Order?
MOQ is 100 units per model. Provide shaft diameter, housing bore tolerance, applied load, traverse speed, stroke, and operating environment. All catalogue data is for reference only.
LIN-01RSK — 8 bore sizes · Keyway anti-rotation · Aluminium housing · Replaceable membrane.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
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