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68 Series
Home Deep Groove Ball Bearings 68 Series

6810-2RS Ultra-Slim Deep Groove Ball Bearing For Industrial Automation & Rotary Encoders | 50×65×7 mm

6810-2RS Ultra-Slim Deep Groove Ball Bearing For Industrial Automation & Rotary Encoders | 50×65×7 mm

Engineered for highly confined radial spaces, the 6810-2RS is an extra-light, single-row deep groove ball bearing belonging to the specialized 6800 thin-section series. It is equipped with dual-lip contact rubber seals bonded firmly to the outer raceway, creating a reliable barrier against fine particulate matter and fluid spray. Measuring a substantial 50 mm in inner diameter while maintaining a mere 65 mm outer diameter and 7 mm width, this component allows engineers to utilize wider, stiffer shafts without incurring penalties in machine bulk or weight. The combination of its thin cross-section and integrated sealing makes the 6810-2RS the primary choice for automated systems operating in environments compromised by dust, lint, or moisture.

6810-2RS Deep Groove Ball Bearing 50×65×7 mm | 68 Series | Double Rubber Seals (2RS)

A high-efficiency, thin-walled bearing developed for large-shaft equipment where external housing seals cannot be accommodated and maintenance access is restricted. The 6810-2RS integrates two synthetic rubber lip seals across its 50 mm bore frame—an architecture designed to intercept fine grit, carbon residues, and liquid condensation before they reach the precision raceways. Simultaneously, these seals prevent the factory-loaded grease from migrating outward. It occupies the identical 50 × 65 × 7 mm footprint as its unsealed counterparts (the open 6810 and shielded 6810-ZZ), allowing for direct retrofitting. While non-contact variants offer slightly less rotational drag, the 6810-2RS represents the correct engineering choice for any layout where continuous environmental protection is prioritized.

6810-2RS Ultra-Slim Deep Groove Ball Bearing For Industrial Automation & Rotary Encoders | 50×65×7 mm

Comprehensive Applications

The 6810-2RS is widely implemented across industries where a 50 mm rotating shaft must be supported within an extremely low-profile housing:

Advanced Automated Systems
  • Multi-axis robotic arm articulated joints
  • High-resolution rotary optical encoders and resolvers
  • Automated packaging and sorting conveyor pulleys
  • Precision semiconductor handling machinery
Electric Drives & Actuators
  • Low-profile pancake motors and hollow-shaft servo systems
  • Industrial ventilation fans and compact blower units
  • Automotive steering columns and electronic drive assemblies
  • Electric vehicle auxiliary motor drive shafts
Fluid Management & Precision Instruments
  • Miniature centrifugal pumps and liquid dosing systems
  • Medical diagnostic turntables and scanning machinery
  • Lab mixing equipment and chemical analytical instrumentation
  • Textile manufacturing spindles and winding heads

Key Performance Features

01. Comprehensive Protection via Dual Contact Rubber Seals

Operating in industrial or automated environments exposes internal components to fine debris. The 6810-2RS counters this with oil-resistant nitrile rubber (NBR) seals that rest directly against the inner ring shoulder. This full-contact design stops fine carbon dust, textile fibers, and ambient moisture from degrading the rolling elements, offering standalone protection independent of external housing enclosures.

02. Minimal Cross-Section for Optimized Machine Geometry

Belonging to the 6800 extra-light series, this bearing features an exceptionally small radial height (only 7.5 mm between the shaft and the housing wall). This geometric advantage allows developers to route wiring, pneumatic lines, or secondary shafts right through a wide 50 mm hollow spindle, keeping the total machine envelope remarkably slim and lightweight.

03. Factory Pre-Greased for an Extended, Zero-Maintenance Lifespan

The same contact lip arrangement that locks out contaminants also ensures the internal grease charge stays safely locked within the raceways. Because the 6810-2RS arrives pre-filled with high-grade, temperature-stable lubricant, it operates reliably from the day of installation without requiring re-lubrication scheduling, minimizing machine downtime.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 6800 Series
Basic Designation 6810
Suffix Double Contact Rubber Seal (2RS / 2RS1 / DDU)
Bore Diameter (d) 50 mm
Outer Diameter (D) 65 mm
Width (B) 7 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard (P0) / P5 Available
Cage Material Pressed Steel
Dynamic Load Rating (Cʳ) 6.76 kN
Static Load Rating (C₀ʳ) 6.80 kN
Limiting Speed (Grease) ~6,000 r/min
Limiting Speed (Oil) N/A — Permanent rubber seals limit oil immersion use (Theoretical open-type reference speed: ~11,000 r/min)
Weight (approx.) 0.052 kg

Interchange Part Numbers

The 6810-2RS is standardized worldwide and directly matches the following premium manufacturer and generic codes:

  • SKF: 61810-2RS1, 61810-2RSH
  • NSK: 6810DDU, 6810VV
  • FAG (Schaeffler): 61810-2RSR
  • NTN: 6810LLU, 6810LLB
  • KOYO: 6810-2RS
  • NACHI: 6810-2NSE
  • Generic: 6810-2RS, 61810-2RS, 6810DDU, 6810EE

Design & Configuration

The 6810-2RS is a deep-groove Conrad radial bearing optimized for compact, low-weight structural envelopes. Despite a thin 7 mm profile, its precise track geometry delivers a stable 6.76 kN dynamic load capacity alongside a 6.80 kN static load threshold. The integrated rubber friction lips introduce a minor torque threshold compared to an open design, adjusting its optimal operational ceiling to 6,000 r/min when grease-lubricated. For applications operating beyond this rotational threshold in perfectly sanitized environments, open or steel-shielded variants are suggested. However, whenever dust, humidity, or airborne chemical mists are present, the 6810-2RS represents the correct technical solution. It is available in higher ABEC 3 and ABEC 5 precision gradings for assemblies demanding minimal runout and low noise emissions.

"When an engineering design demands a wide 50 mm shaft footprint but provides minimal clearance inside the machine housing, the 6810-2RS thin-walled bearing handles the challenge efficiently. Combining a space-saving radial design with complete integrated sealing, it functions as a maintenance-free component for automated assemblies, robotic joints, and high-density industrial equipment operating under harsh conditions."

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Engineered for highly confined radial spaces, the 6810-2RS is an extra-light, single-row deep groove ball bearing belonging to the specialized 6800 thin-section series. It is equipped with dual-lip contact rubber seals bonded firmly to the outer raceway, creating a reliable barrier against fine particulate matter and fluid spray. Measuring a substantial 50 mm in inner diameter while maintaining a mere 65 mm outer diameter and 7 mm width, this component allows engineers to utilize wider, stiffer shafts without incurring penalties in machine bulk or weight. The combination of its thin cross-section and integrated sealing makes the 6810-2RS the primary choice for automated systems operating in environments compromised by dust, lint, or moisture.

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Details

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