The FP Oil Seal 30x52x10/12 GPA NBR is designed for industrial rotary shaft applications requiring reliable lubricant retention around a 30 mm shaft.

Installed between the rotating shaft and stationary housing, the seal creates controlled radial contact with the shaft surface. This helps reduce leakage of oil or compatible grease while limiting the entry of dust, dirt, moisture, and abrasive particles into bearings, gearboxes, pumps, motors, transmissions, and drive assemblies.

The product is identified by the FP manufacturer designation GPA. Because industrial seal-profile codes are manufacturer-specific, the exact sealing-lip geometry, number of lips, outside-diameter construction, internal reinforcement, spring arrangement, dust-exclusion feature, and installation direction should be compared with the original seal or technical drawing before replacement.

The size designation 30x52x10/12 indicates:

Shaft diameter: 30 mm

Housing diameter: 52 mm

Nominal seal width: 10/12 mm

The 10/12 mm width designation commonly indicates a stepped, shouldered, offset, or differential-width construction rather than a conventional seal with one uniform width. The exact relationship between the 10 mm and 12 mm sections must be verified from the original seal, side profile, or installation drawing.

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, abrasion, and mechanical wear under standard industrial conditions. Compatibility should be confirmed before use with aggressive chemicals, high continuous temperatures, ozone-rich environments, or specialized synthetic lubricants.

The compact 30 × 52 mm radial dimensions make this seal suitable for bearing housings, gearboxes, pumps, electric motors, transmissions, and OEM machinery. However, the stepped 10/12 mm width makes profile and installation-depth verification especially important.

⚙️ Applications

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

🎯 Benefits

✔ Helps retain oil or compatible grease

✔ Protects bearings and rotating components

✔ Oil-resistant NBR sealing material

✔ Suitable for 30 mm shaft assemblies

✔ Compact 52 mm housing diameter

✔ Stepped 10/12 mm installation width

✔ Good resistance to wear and abrasion

✔ Suitable for maintenance and overhaul work

✔ OEM replacement ready when dimensions and profile match

🧠 Technical Insight

• FP GPA Seal Reference
• Metric Rotary Shaft Seal
• NBR Sealing Material
• 10/12 mm Differential-Width Designation
• Radial Shaft-Sealing Function
• Low-Pressure Lubricant Retention
• 30 mm Shaft Diameter
• GPA Cross-Section Verification Required

✅ Key Features

• FP Industrial Quality
• GPA Profile Reference
• Oil-Resistant NBR Material
• Reinforced Rotary Shaft Construction
• Metric 30x52x10/12 Dimensions
• Stepped or Shouldered Width Configuration
• Industrial Replacement Seal
• OEM Cross-Reference Ready

📊 Specifications

Brand: FP

Model: GPA

Size: 30 × 52 × 10/12 mm

Type: Stepped-Width Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: GPA

Construction: Manufacturer-Specific Reinforced Shaft-Seal Construction

Width Configuration: 10/12 mm stepped, shouldered, offset, or differential-width arrangement; verify against the original seal

Lip Design: GPA profile; verify against the original seal

Dust Lip: Verify from the actual GPA cross-section

Spring Type: Verify from the actual seal construction

Shaft Diameter (ID): 30 mm

Housing Diameter (OD): 52 mm

Width: 10/12 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: Metric Specialized Industrial Seal

🔁 Equivalent

Suitable replacement for compatible:

• FP GPA Rotary Shaft Seal
• FP 30x52x10/12 Oil Seal
• 30x52x10/12 NBR Seal
• 30 mm Shaft Oil Seal
• Stepped-Width Metric Oil Seal
• Industrial Bearing Housing Seal
• Industrial Gearbox Shaft Seal
• Pump Shaft Oil Seal
• Electric Motor Shaft Seal
• OEM GPA Shaft Seal

The same shaft diameter, housing diameter, or nominal width does not guarantee interchangeability. The replacement must match the original GPA cross-section, 10/12 mm step geometry, shoulder position, lip orientation, outside-case construction, spring arrangement, and installation depth.

(Always verify dimensions, GPA-profile geometry, stepped-width orientation, shoulder location, lip direction, 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, pump repair, motor 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