The CFW Oil Seal 65x90x13 TB NBR is designed for rotary shaft applications requiring lubricant retention around a 65 mm shaft within a 90 mm housing bore.

Installed between the rotating shaft and stationary housing, the sealing element maintains controlled contact with the shaft surface to help reduce leakage of compatible lubricants and support protection of bearings, gears, pumps, motors, and other rotating components.

The product is identified by the CFW TB Profile. Because profile terminology can vary by manufacturer and product series, the exact TB cross-section should be checked against the original seal, technical drawing, or equipment specification. The precise:

• Sealing-lip geometry
• Number of sealing lips
• Dust-exclusion arrangement
• Spring configuration
• Internal reinforcement
• Outside-case construction
• Lip orientation
• Installation direction

should be verified before replacement.

The seal material is NBR (Nitrile Butadiene Rubber), which is generally suitable for:

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

NBR generally provides good resistance to petroleum-based oils, grease, abrasion, and mechanical wear under normal industrial service. Compatibility should be verified for aggressive chemicals, certain fuels, specialized synthetic fluids, ozone-rich environments, or continuous elevated-temperature operation.

The metric dimensions correspond approximately to:

Shaft diameter: 65 mm / 2.559 in

Housing diameter: 90 mm / 3.543 in

Seal width: 13 mm / 0.512 in

The 65 × 90 × 13 mm configuration is commonly suited to medium-size industrial shaft assemblies where dimensional accuracy, shaft finish, alignment, concentricity, and runout are important to sealing performance.

⚙️ Applications

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

🎯 Benefits

✔ Helps retain compatible oil or grease

✔ Suitable for 65 mm shaft applications

✔ Oil-resistant NBR sealing material

✔ CFW TB profile reference

✔ Suitable for general industrial rotating equipment

✔ Good resistance to abrasion and wear

✔ Metric 65x90x13 configuration

✔ Suitable for maintenance and overhaul work

✔ Replacement ready when dimensions and TB cross-section match

🧠 Technical Insight

• CFW TB Seal Reference
• Metric Rotary Shaft Seal
• NBR Sealing Material
• 65 mm Shaft Diameter
• 90 mm Housing Diameter
• 13 mm Axial Width
• Low-Pressure Lubricant Retention
• Exact TB Cross-Section Should Be Verified

✅ Key Features

• CFW Industrial Seal
• TB Profile Reference
• Oil-Resistant NBR Material
• Metric Construction
• 65x90x13 Dimensions
• Industrial Shaft Application
• Replacement Seal
• Cross-Reference Support Available

📊 Specifications

Brand: CFW

Model / Profile: TB

Size: 65 × 90 × 13 mm

Inch Equivalent: Approximately 2.559 × 3.543 × 0.512 in

Type: Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: TB

Construction: Manufacturer-Specific CFW TB Rotary Shaft-Seal Construction

Lip Design: TB profile; verify exact sealing-lip geometry, number of lips, and orientation against the original CFW seal or technical drawing

Dust Lip: Verify from the actual TB cross-section

Spring Type: Verify from the actual TB seal construction

Shaft Diameter (ID): 65 mm

Housing Diameter (OD): 90 mm

Width: 13 mm

Pressure Capability: Primarily 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, speed, and operating conditions

Speed Consideration: Permissible speed depends on shaft diameter, shaft finish, lubrication, temperature, alignment, concentricity, runout, lip loading, and actual TB construction

Installation Consideration: Verify shaft finish, shaft hardness, housing condition, installation depth, lip orientation, concentricity, runout, and complete TB cross-section before installation

Application Class: General Industrial Bearing, Gearbox, Pump, Motor, and Transmission Equipment

Standard: Metric Specialized Industrial Seal

🔁 Equivalent

Suitable replacement or cross-reference candidate for compatible:

• CFW TB NBR Rotary Shaft Seal
• CFW 65x90x13 Oil Seal
• 65 mm Shaft Oil Seal
• 65x90x13 NBR Oil Seal
• Metric Rotary Shaft Seal
• Industrial Bearing Housing Seal
• Industrial Gearbox Shaft Seal
• Industrial Pump Shaft Seal
• OEM TB Profile Oil Seal
• Industrial NBR Shaft Seal

The same 65 × 90 × 13 mm dimensions alone do not guarantee interchangeability. The replacement must also match the original TB cross-section, sealing-lip geometry, number of lips, lip orientation, outside-case construction, reinforcement arrangement, spring configuration, installation direction, NBR compound, and operating requirements.

(Always verify dimensions, TB-profile geometry, complete cross-section, shaft finish, shaft hardness, housing condition, installation depth, lubricant compatibility, rotational speed, temperature, concentricity, runout, pressure, and operating conditions before ordering.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for bearing-housing maintenance, gearbox overhaul, industrial pump repair, motor servicing, mechanical transmissions, agricultural machinery, conveyor systems, 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