Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit
R Series
Home Deep Groove Ball Bearings R Series

R20-2RS Heavy-Duty Inch Deep Groove Ball Bearing for Industrial Motors & Machinery | 1-1/4" × 2-1/4" × 1/2"

R20-2RS Heavy-Duty Inch Deep Groove Ball Bearing for Industrial Motors & Machinery | 1-1/4" × 2-1/4" × 1/2"

Built for environments that demand robust load-carrying capacity and superior contamination defense, the R20-2RS is a premium inch-series deep groove ball bearing. Equipped with dual rubber contact seals (2RS), this bearing is engineered to lock in factory grease while completely blocking out moisture, dust, and abrasive particles. Because these synthetic seals make physical contact with the inner ring, the R20-2RS provides exceptional reliability in challenging conditions, making it the go-to solution for 1.25-inch bore equipment like heavy-duty pumps, industrial blowers, agricultural machinery, and conveyor systems.

R20-2RS Deep Groove Ball Bearing 1.25" Bore | Standard Inch Series | Double Sealed

Manufactured to strict ABEC tolerance standards, the R-Series inch bearing utilizes a rugged structural design to handle substantial radial and moderate axial loads in demanding industrial settings. The integrated rubber seals provide maximum defense against environmental hazards, safeguarding the precision-ground internal raceways. This highly effective sealing mechanism drastically extends the bearing's operational lifespan and prevents the premature wear typically caused by debris ingress, reducing maintenance downtime for factory equipment operating in wet or dirty environments.

R20-2RS Heavy-Duty Inch Deep Groove Ball Bearing for Industrial Motors & Machinery | 1-1/4" × 2-1/4" × 1/2"

Comprehensive Applications

Tailored for heavy load support and resilient mechanical assemblies:

Industrial Machinery & HVAC Systems
  • High-capacity centrifugal water and oil pumps
  • Industrial blowers, compressors, and exhaust fans
  • Heavy-duty gearboxes and speed reducers
  • HVAC motor shafts and ventilation units
Agricultural & Construction Equipment
  • Tractors, harvesters, and tilling machinery
  • Heavy construction vehicle drivetrains
  • Outdoor power equipment and landscaping machinery
  • Mining and earth-moving equipment pivot points
Material Handling & Conveyors
  • Factory production line conveyor rollers
  • Automated sorting facility drive systems
  • Heavy-duty pulleys and lifting winches
  • Packaging and bottling plant machinery

Key Performance Features

01. High Load Capacity Inch-Series Geometry

Conforming to standard inch-series dimensions (1.25" ID x 2.25" OD x 0.5" Width), the bearing's robust cross-section and optimized deep-groove ball complement allow it to absorb heavy radial forces and bidirectional axial loads effortlessly. This makes it an ideal drop-in replacement for standard US-sized mechanical shafts.

02. Premium Bearing Steel Construction (SAE 52100)

Manufactured from high-purity, through-hardened 52100 chrome steel, the rings and rolling elements provide exceptional fatigue strength and wear resistance. Combined with precise micro-finishing on the raceways, the bearing delivers smooth, reliable operation under heavy continuous loads.

03. Maximum Contamination Defense (2RS)

Equipped with premium synthetic Nitrile Butadiene Rubber (NBR) contact seals on both sides, the R20-2RS provides an impenetrable barrier against dirt, mud, and water ingress. This full-contact design ensures the internal raceways remain pristine, greatly reducing the risk of premature failure in harsh outdoor or factory floor environments.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series R Series (Standard Inch)
Basic Designation R20
Suffix 2RS (Double Rubber Contact Seals)
Bore Diameter (d) 1-1/4 in (31.75 mm)
Outer Diameter (D) 2-1/4 in (57.15 mm)
Width (B) 1/2 in (12.7 mm)
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard / ABEC-1 to ABEC-3 Available
Seal Material NBR (Nitrile Butadiene Rubber)
Dynamic Load Rating (Cʳ) 14.0 kN (approx. 3,150 lbf)
Static Load Rating (C₀ʳ) 9.3 kN (approx. 2,090 lbf)
Limiting Speed (Grease) 7,500 r/min
Limiting Speed (Oil) -
Weight (approx.) 0.10 kg (0.22 lbs)

Interchange Part Numbers

Directly replaces the following equivalent manufacturer parts:

  • SKF: EE11-2RS
  • FAG: R20-2RSR
  • NSK: R20DDU / R20VV
  • KOYO: R20-2RS
  • NTN: R20LLU
  • MRCR20-2RS

Design & Configuration

The standard R20-2RS comes pre-lubricated with high-performance, multi-purpose industrial grease for immediate installation. Depending on your operational environment, we can customize this bearing with specialized high-temperature lubricants or provide it in stainless steel (AISI 440C) for superior corrosion resistance in food-grade or marine applications. If your machinery operates in clean environments and requires higher rotational speeds with less friction, consider our metal-shielded R20-ZZ or open R20 alternatives.

"The R20-2RS combines heavy-duty inch-dimension geometry with unbeatable environmental sealing, ensuring maximum uptime for the most demanding industrial operations."

Related Products

Reliable R16 ZZ Replacement Bearing interchangeable with SKF R16-2Z and KOYO R16ZZ for Lawnmower Spindles and Conveyors
R16-ZZ Imperial Deep Groove Ball Bearing | Shielded Design for Electric Motors | 1×2×1/2 inch

Engineered to deliver exceptional rotational stability on standard one-inch shaft applications, the R16-ZZ is a highly versatile inch-series deep groove ball bearing. Designed with twin pressed-steel shields (ZZ), it forms a highly effective barrier against external dirt and particulate matter while securely retaining the factory-filled lubrication. Because these dual metal shields operate without physically touching the inner ring, the R16-ZZ provides a frictionless sealing solution, significantly minimizing startup torque and ensuring cooler running temperatures for electric motors, lawn care equipment, and high-speed rotary assemblies.

Details
High-Speed 13000 RPM R14-ZZ Bearing - 7/8 inch Chrome Steel with Metal Shields for Electric Motors and Gearboxes
R14-ZZ Precision Shielded Ball Bearing for Electric Motors & Automation | 7/8" x 1-7/8" x 3/8"

Engineered to bridge the gap between compact dimensions and substantial load capacities, the R14-ZZ is a highly versatile inch-series deep groove ball bearing. Featuring twin pressed-steel shields (ZZ), this model efficiently deflects dirt and metallic debris while keeping the internal factory lubricant securely in place. Because these metal shields operate without making physical contact with the inner ring, the R14-ZZ minimizes mechanical drag and startup resistance, making it an optimal 7/8-inch bore solution for electric motors, gearboxes, and high-speed automated machinery.

Details
R14-2RS Inch Ball Bearing featuring Double Rubber Contact Seals (2RS) for Maximum Moisture Protection in Industrial Pumps and Conveyors
R14-2RS Sealed Inch Series Ball Bearing for Demanding Environments | 7/8×1-7/8×1/2 inch

Manufactured specifically for mechanical environments prone to heavy dust, moisture, and particle contamination, the R14-2RS is a premium inch-system deep groove ball bearing. Unlike metal-shielded variants, this model is equipped with dual synthetic rubber contact seals (2RS). The sealing lip makes direct contact with the bearing's inner ring, creating an impenetrable barrier against harsh external elements while permanently locking in the specialized factory grease. This makes the R14-2RS the ultimate choice for standard 7/8-inch shaft assemblies in food processing lines, liquid pumping systems, and heavy outdoor equipment where contamination control is critical.

Details
Premium 1/4 inch R4A ZZ bearing replacement made of GCr15 chrome steel for medical instruments, small electric motors, and power tools
R4A-ZZ Inch Series Deep Groove Ball Bearing for Precision Instruments & Power Tools | 1/4×3/4×9/32 in

Engineered to deliver exceptional radial support and smooth rotational efficiency in fractional-inch machinery, the R4A-ZZ is a premium single-row deep groove ball bearing. Outfitted with dual pressed-steel shields (ZZ), this bearing effectively blocks external debris while safely retaining its factory-engineered lubricant. Because these metal shields operate without direct contact against the inner ring, the R4A-ZZ minimizes mechanical drag and starting torque, making it a standout selection for 1/4-inch shaft applications including precision gearboxes, optical instruments, and medical apparatus.

Details
High Load R4A-2RS Replacement Bearing 1/4 x 3/4 inch compatible with SKF R4A-2RS1 and NSK R4ADDU for industrial power tools
R4A-2RS Premium Inch-Series Ball Bearing for Industrial Motors & Automation | 1/4" × 3/4" × 9/32"

Engineered for fractional-inch applications requiring exceptional durability and environmental defense, the R4A-2RS is a high-quality, single-row deep groove ball bearing. Outfitted with heavy-duty double rubber contact seals (2RS), it provides superior protection against the ingress of dust, dirt, and moisture while securely locking in the factory-applied lubricant. Because the rubber seals maintain direct contact with the inner ring, this bearing offers maximum contamination resistance, making it the ideal solution for 1/4-inch bore mechanisms operating in demanding or exposed environments, such as electric motors, power tools, and automated manufacturing equipment.

Details
Precision R3A-ZZ ball bearing 3/16x5/8x0.196 inch featuring dual steel shields for low friction torque in micro-motors and medical instruments
R3A-ZZ Precision Inch Ball Bearing for Micro-Mechanisms & Instrumentation | 3/16×5/8×0.196 in

Built for high-precision operations in compact fractional-inch assemblies, the R3A-ZZ stands out as a top-tier double-shielded deep groove ball bearing. Equipped with twin metallic shields (ZZ), it forms a highly effective barrier against airborne dust and contaminants while securing the factory-applied lubricant inside. Because these metal shields are engineered to hover just above the inner ring without physical contact, the R3A-ZZ ensures minimal rotational drag and virtually zero start-up friction. This makes it a critical component for 3/16-inch bore applications like aerospace avionics, delicate medical instruments, and miniature gearboxes.

Details
Precision FR168-ZZ Flanged Miniature Bearing 1/4
FR168-ZZ Flanged Miniature Ball Bearing for Precision Engineering & RC Hobbyists | 6.35 × 9.525 × 3.175 mm

Designed for confined mechanical spaces demanding exact shaft positioning, the FR168-ZZ is a high-grade miniature deep groove ball bearing equipped with a specialized flanged outer ring. Featuring twin non-contact metal shields (ZZ), this component provides outstanding protection against environmental contaminants while securely retaining its premium factory grease. Because these steel shields do not rub against the inner race, the FR168-ZZ guarantees ultra-low starting torque and frictionless, high-velocity rotation. This makes it an indispensable asset for 1/4-inch shaft applications where space is at a premium, including advanced RC models, medical handpieces, and intricate robotic assemblies.

Details
R20-2RS Deep Groove Ball Bearing displaying Double Rubber Contact Seals for Moisture and Dirt Protection
R20-2RS Heavy-Duty Inch Deep Groove Ball Bearing for Industrial Motors & Machinery | 1-1/4" × 2-1/4" × 1/2"

Built for environments that demand robust load-carrying capacity and superior contamination defense, the R20-2RS is a premium inch-series deep groove ball bearing. Equipped with dual rubber contact seals (2RS), this bearing is engineered to lock in factory grease while completely blocking out moisture, dust, and abrasive particles. Because these synthetic seals make physical contact with the inner ring, the R20-2RS provides exceptional reliability in challenging conditions, making it the go-to solution for 1.25-inch bore equipment like heavy-duty pumps, industrial blowers, agricultural machinery, and conveyor systems.

Details

Leave A Message

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit

Home

Products

whatsApp

contact