SS 61801 2RS LFD 12x21x5 - stainless deep groove ball bearing

Main Description

The SS 61801 2RS LFD 12x21x5 is a precision stainless steel deep groove ball bearing, engineered to deliver high performance in corrosive, humid, or otherwise aggressive environments. With inner diameter 12 mm, outer diameter 21 mm, and width 5 mm, it is compact yet robust — perfect for applications demanding both compactness and reliability.

Constructed from high-grade stainless steel, this bearing resists oxidation and corrosion, making it ideal for food processing, marine, chemical, or humid industrial settings. The 2RS (double rubber seals) design ensures protection against contaminants, dust, splashes, and moisture, preserving the internal grease and extending operating life.

The LFD sealing variant provides tight contact, minimizing ingress while keeping friction low. Pre-lubricated with a long-life grease, this unit is ready for use without additional maintenance — a key advantage in B2B settings. The deep groove design allows it to carry radial loads and moderate axial forces in both directions, fulfilling typical needs of rotating shafts, guiding units, or compact drives.

For engineers and procurement professionals, this model stands out by combining high corrosion resistance, low noise, and reliable sealing, making it a superior alternative to standard steel bearings. Its dimensions match standard 61801 series bearings, so installation in existing housings or units is straightforward.

Applications

• Food, beverage, and pharmaceutical machinery

• Marine and offshore equipment

• Chemical processing units

• Compact electric motors and actuators

• Robotic assemblies and automation modules

• Linear guides and small bearing units

Because it is stainless and sealed, it excels where humidity, wash-downs or exposure to dampness are common.

Technical Specifications

Advantage Highlights

• 🛡️ Excellent corrosion resistance — stainless steel construction

• 🔒 Double sealed design (2RS) — protects internal grease, blocks dust and moisture

• 🕰️ Maintenance-free operation — pre-lubricated and sealed

• 🔇 Quiet and stable motion — deep groove geometry reduces vibration

• 🌐 Versatile use in industrial settings — food, marine, chemical

• 📏 Compact standard size 12x21x5 — easy replacement in existing systems

FAQ

Q1: What does 2RS stand for?
It refers to rubber seals on both sides, which protect the bearing from contamination and moisture ingress.

Q2: Is this bearing suitable for wet or corrosive environments?
Yes — made of stainless steel and sealed (2RS), it’s ideal for such conditions.

Q3: Does it require re-greasing?
No — it comes pre-lubricated with long-life grease and is designed for maintenance-free operation.

Q4: What are typical applications?
Food machinery, marine equipment, automation, compact motors, linear guides.

Q5: Are there equivalent bearings from other brands?
Yes — equivalents with same dimensions and corrosion resistance are available from SKF, INA, FAG, KOYO, etc.