SKF Quadro linear bearing units LQCD

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SKF Quadro linear bearing units LQCD Specification

Thickness
Standard (varies per unit size)

Retainer
End caps with seals

Cage Material
Polyamide

Precision Rating
ISO class 6

Lubrication Type
Grease lubrication

Inside Diameter
25 mm

Bearing Type
Linear ball bearing unit

Material
Aluminium housing, hardened steel bearing

Structure
Quadro bearing unit

Seals Type
Double lip seals

Number Of Rows
4 rows

Bore Size
25 mm

Outside Diameter
40 mm

Limiting Speed
Up to 3 m/s

Load Capacity
High (depends on variant)

Tolerances
Complies with ISO 10285

Application
Automation, conveyor systems, material handling

Grease Fitting
Yes, with lubrication provisions

Recommended Shaft Tolerance
h6 or h7

Dynamic Load Capacity
Up to 3600 N

Operating Temperature Range
-20°C to +80°C

End Cap Material
Polyamide reinforced plastic

Static Load Capacity
Up to 4800 N

Mounting Type
Bottom and side mounting holes

Corrosion Resistance
Yes, with proper lubrication and seal integrity

Interchangeability
Compatible with ISO-compliant linear shafts

SKF Quadro linear bearing units LQCD Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
1 Piece Per Week

Delivery Time
1 Week

About SKF Quadro linear bearing units LQCD

			mm			Deg.	N	kg
32 22	8 30	23,4	3 73	85 42	5,3	M 6		7,6 78	2 850 3 250	0,426	LQCF 12-2LS
36 26	22 35	28,4	3 88	00 54	5,3	M 6		0,4 78	3 450 3 450	0,698	LQCF 16-2LS
45 32	25 42	33,5	8 5	30 72	6,6	M 8		0,8 60	5 200 5 500	,42	LQCF 20-2LS
58 40	30 5	40	22 40	60 88	8.4	M 0		3,2 60	7 650 8 50	2,572	LQCF 25-2LS
68 47	35 60	46,5	26 58	80 96	0,5	M 2		4,2 50	2 200 2 900	3,79	LQCF 30-2LS
80 62	45 77	6	34 202	230 22	3,5	M 6		8,7 50	20 800 20 800	7.8	LQCF 40-2LS
00 75	55 93	77	34 250	280 52	3,5	M 6		23,6 50	30 000 28 000	3,96	LQCF 50-2LS

Exceptional Performance and Durability

SKF Quadro linear bearing units LQCD stand out for their high load capacities, precision construction, and four-row design. The robust aluminum housing and hardened steel bearings, reinforced with polyamide end caps, provide excellent strength and longevity. These features make the LQCD units ideal for use in automation, conveyor systems, and material handling environments with elevated operational demands.

Designed for Easy Installation and Maintenance

This bearing unit accommodates both bottom and side mounting, streamlining the installation process in varied setups. With an integrated grease fitting and double lip seals, routine maintenance is straightforward, ensuring reliable operation and prolonged bearing life. Compatibility with ISO shaft tolerances (h6, h7) further simplifies replacement and interchangeability across different systems.

Optimized for Harsh Industrial Environments

SKF LQCD units are engineered to operate efficiently in temperatures ranging from -20C to +80C. Their corrosion-resistant propertieswhen paired with proper lubrication and sealed integrityensure consistent performance even in challenging workspaces. The design supports high limiting speeds (up to 3 m/s) and maintains precision (ISO class 6), minimizing downtime and maximizing productivity.

FAQs of SKF Quadro linear bearing units LQCD:

Q: How should the SKF LQCD linear bearing units be mounted for optimal performance?

A: The SKF LQCD linear bearing units can be mounted using either bottom or side mounting holes, depending on your applications space constraints and design. Ensure alignment with the recommended shaft tolerance (h6 or h7) and secure the unit according to ISO 10285 standards to maximize operational stability and bearing life.

Q: What maintenance procedures are recommended to ensure the longevity of the LQCD bearing units?

A: Regular lubrication through the provided grease fitting is essential to maintain optimal performance and prevent corrosion. Periodic inspection and re-greasing as specified in the SKF maintenance schedule will preserve the integrity of seals and ensure smooth, long-lasting operation.

Q: When is it beneficial to use double lip seals in linear bearing applications?

A: Double lip seals effectively protect against contaminants and retain lubricant within the bearing assembly. Using these seals is beneficial in environments where dust, debris, or fluid ingress may compromise the bearings performance or cause premature wear.

Q: Where can SKF LQCD linear bearing units be applied for best results?

A: These units are ideal for automation, conveyor systems, and material handling equipment requiring precise, high-load linear motion. They are also suitable in industrial setups where harsh operating conditions and high cycle rates are common.

Q: What process should be followed to ensure correct lubrication of the bearing units?

A: Use the built-in grease fitting to supply SKF-approved grease at intervals recommended in the product manual. Ensure the seals are intact before and after lubrication, and always clean the surrounding area to prevent foreign particles from entering the bearing system.

Q: How does the bearings construction enhance its corrosion resistance?

A: The aluminum housing and hardened steel bearing, when combined with effective lubrication and intact double lip seals, help resist corrosion. Regular maintenance ensures these features remain effective, even in challenging industrial environments.

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