The PBR Oil Seal 1.000x2.000x0.250 TC NBR is designed for rotary shaft applications requiring lubricant retention around a 1.000-inch shaft within a 2.000-inch housing bore.

The TC profile is commonly constructed with a primary radial sealing lip and a secondary auxiliary lip. The primary lip usually incorporates a garter spring to maintain consistent radial contact with the shaft surface, while the auxiliary lip helps reduce the ingress of dust, dirt, moisture, and other contaminants.

The seal normally incorporates internal metal reinforcement to maintain dimensional stability and secure retention within the housing. Exact construction details should still be checked against the original PBR seal or technical drawing before replacement.

Manufactured from NBR (Nitrile Butadiene Rubber), the sealing element is generally suitable for:

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

NBR provides good resistance to oil, grease, abrasion, and mechanical wear under normal industrial operating conditions. Compatibility should be verified before use with aggressive chemicals, certain fuels, specialized synthetic fluids, ozone-rich environments, or continuous elevated-temperature service.

The inch dimensions convert to:

Shaft diameter: 1.000 inch or 25.40 mm

Housing diameter: 2.000 inches or 50.80 mm

Seal width: 0.250 inch or 6.35 mm

The 1.000 × 2.000 × 0.250-inch configuration is suitable for compact bearing housings, motors, pumps, gearboxes, mechanical drives, and legacy equipment using an inch-size TC-style rotary shaft seal.

⚙️ Applications

• Industrial gearboxes
• Bearing housings
• Electric motors
• Industrial pumps
• Mechanical transmissions
• Agricultural machinery
• Construction equipment
• Conveyor drive assemblies
• General rotating machinery
• OEM industrial equipment

🎯 Benefits

✔ Helps retain compatible oil or grease

✔ Double-lip TC sealing arrangement

✔ Auxiliary lip helps reduce contamination ingress

✔ Spring-loaded primary sealing lip

✔ Oil-resistant NBR material

✔ Suitable for 1.000-inch shaft assemblies

✔ Good resistance to abrasion and wear

✔ Suitable for maintenance and overhaul work

✔ Replacement ready when dimensions and TC profile match

🧠 Technical Insight

• PBR TC Seal Reference
• Inch-Size Rotary Shaft Seal
• Double-Lip Sealing Arrangement
• Spring-Loaded Primary Lip
• Auxiliary Dust Lip
• NBR Sealing Material
• 25.40 mm Shaft Diameter
• Compact 6.35 mm Axial Width

✅ Key Features

• PBR Industrial Quality
• Standard TC Profile
• Double-Lip Design
• Garter-Spring Main Lip
• Oil-Resistant NBR Material
• 1.000x2.000x0.250 Dimensions
• Industrial Replacement Seal
• Cross-Reference Support Available

📊 Specifications

Brand: PBR

Model / Profile: TC

Size: 1.000 × 2.000 × 0.250 inch

Metric Equivalent: 25.40 × 50.80 × 6.35 mm

Type: Double-Lip Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: TC

Construction: Elastomer sealing element with internal metal reinforcement

Lip Design: Primary sealing lip with auxiliary secondary lip

Dust Lip: Yes, auxiliary dust/exclusion lip commonly incorporated in standard TC construction

Spring Type: Garter spring on the primary sealing lip

Shaft Diameter (ID): 1.000 inch / 25.40 mm

Housing Diameter (OD): 2.000 inches / 50.80 mm

Width: 0.250 inch / 6.35 mm

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

Lubrication: Compatible oil and grease

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

Speed Consideration: Permissible speed depends on shaft diameter, surface finish, lubrication, temperature, lip loading, alignment, runout, and NBR compound

Installation Consideration: Confirm shaft finish, housing-bore condition, installation depth, spring side, lip orientation, and protection from sharp shaft edges before fitting

Application Class: Compact Industrial Bearing and Rotating Equipment

Standard: Inch-Size TC Rotary Shaft Seal

🔁 Equivalent

Suitable replacement or cross-reference candidate for compatible:

• PBR TC NBR Rotary Shaft Seal
• PBR 1.000x2.000x0.250 Oil Seal
• 25.40x50.80x6.35 Oil Seal
• 1-Inch Shaft Oil Seal
• Double-Lip NBR Shaft Seal
• TC Rotary Shaft Seal
• Industrial Bearing Housing Seal
• Electric Motor Shaft Seal
• Industrial Pump Shaft Seal
• OEM TC Profile Oil Seal

The same dimensions alone do not guarantee interchangeability. The replacement must match the original TC cross-section, lip geometry, dust-lip arrangement, garter-spring configuration, case construction, material compound, lip direction, installation depth, and operating requirements.

(Always verify dimensions, TC profile, lip arrangement, shaft finish, housing condition, installation depth, lubricant compatibility, rotational speed, temperature, runout, pressure, 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, industrial pump servicing, transmission maintenance, agricultural-machinery repair, construction-equipment maintenance, 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