The CR Oil Seal 1.000x1.828x0.250 CRWA1 NBR is designed for industrial rotary shaft applications requiring both lubricant retention and additional protection against external contaminants.

The seal is installed between a rotating shaft and a stationary housing. Its primary sealing lip maintains controlled radial contact with the shaft surface to help retain oil or compatible grease within the equipment. The auxiliary dust lip provides an additional barrier against dust, dirt, moisture, and other contaminants.

The CRWA1 Profile is commonly associated with a metal-cased radial shaft seal incorporating a spring-loaded main lip and an auxiliary exclusion lip. However, because profile details can vary by production series and manufacturer reference, the exact cross-section, outside-case treatment, lip direction, and spring construction should be compared with the original seal before replacement.

Manufactured from NBR (Nitrile Butadiene Rubber), the sealing element is generally compatible with:

• Mineral oils
• Gear oils
• Hydraulic oils
• Bearing grease
• Petroleum-based lubricants
• General industrial lubricating fluids

NBR provides good resistance to petroleum-based oils, grease, wear, and abrasion under standard industrial operating conditions. Compatibility should be confirmed before use with aggressive chemicals, high continuous temperatures, ozone-rich environments, or specialized synthetic lubricants.

The inch dimensions correspond approximately to:

Shaft diameter: 1.000 inch or 25.40 mm

Housing diameter: 1.828 inches or 46.43 mm

Seal width: 0.250 inch or 6.35 mm

The compact width makes this seal suitable for installations with limited axial space. The specific housing diameter indicates that it may be intended for a dedicated bearing housing, gearbox, motor, pump, transmission, or OEM machine design.

⚙️ Applications

• Industrial gearboxes
• Bearing housings
• Electric motors
• Industrial pumps
• Mechanical transmissions
• Agricultural machinery
• Construction equipment
• Conveyor drive assemblies
• Power transmission systems
• OEM rotating machinery

🎯 Benefits

✔ Helps retain oil or compatible grease

✔ Auxiliary lip helps exclude dust and dirt

✔ Oil-resistant NBR sealing material

✔ Compact 0.250-inch width

✔ Suitable for inch-size shaft assemblies

✔ Good resistance to wear and abrasion

✔ Supports bearing and component protection

✔ Suitable for maintenance and overhaul work

✔ OEM replacement ready when dimensions and profile match

🧠 Technical Insight

• CRWA1 Radial Shaft Seal Profile
• Primary Sealing Lip + Auxiliary Dust Lip
• Metal-Reinforced Outer Case
• Garter-Spring Main Lip
• NBR Sealing Material
• Lubricant Retention and Contaminant Exclusion
• 25.40 mm Shaft Diameter
• Profile and Lip Direction Verification Required

✅ Key Features

• CR / Chicago Rawhide Reference
• CRWA1 Profile
• Double-Lip Rotary Shaft Seal
• Oil-Resistant NBR Material
• Metal-Reinforced Construction
• Compact Inch-Size Dimensions
• Industrial Replacement Seal
• OEM Cross-Reference Ready

📊 Specifications

Brand: CR / Chicago Rawhide

Model: CRWA1

Size: 1.000 × 1.828 × 0.250 inch

Metric Equivalent: Approximately 25.40 × 46.43 × 6.35 mm

Type: Double-Lip Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: CRWA1

Construction: Metal-Reinforced Radial Shaft Seal

Lip Design: Primary sealing lip with auxiliary dust lip

Dust Lip: Yes

Spring Type: Garter spring on the primary sealing lip

Shaft Diameter (ID): 1.000 inch / 25.40 mm

Housing Diameter (OD): 1.828 inches / approximately 46.43 mm

Width: 0.250 inch / approximately 6.35 mm

Pressure Capability: Low-pressure rotary shaft-sealing service unless otherwise specified

Lubrication: Oil and compatible grease

Temperature Range: Typically approximately -30°C to +100°C for standard NBR; verify the actual compound and operating conditions

Application Class: Industrial Bearing and Rotating Equipment

Standard: Inch-Size Industrial Radial Shaft Seal

🔁 Equivalent

Suitable replacement for compatible:

• CR CRWA1 Rotary Shaft Seal
• Chicago Rawhide CRWA1 Oil Seal
• 1.000x1.828x0.250 Oil Seal
• 25.40x46.43x6.35 Rotary Seal
• Double-Lip NBR Oil Seal
• Bearing Housing Oil Seal
• Gearbox Shaft Seal
• Motor Shaft Oil Seal
• Pump Shaft Seal
• OEM CRWA1 Shaft Seal

The same dimensions alone do not guarantee interchangeability. The replacement must match the original CRWA1 cross-section, lip orientation, dust-lip arrangement, spring construction, outside-case design, and material compound.

(Always verify dimensions, CRWA1 profile geometry, lip direction, spring condition, shaft and housing condition, lubricant compatibility, rotational speed, temperature, and operating conditions before ordering.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for gearbox overhaul, bearing-housing maintenance, electric motor repair, pump servicing, transmission maintenance, agricultural machinery repair, and compatible OEM replacement applications.

📲 Contact via LINE ID: dusitrea

📧 Email: sales@seal4go.com

💬 Technical support available before ordering

🔍 Assistance available for cross-reference and equivalent part identification