The USI Oil Seal 0.875x1.503x0.688 LGSP NBR is designed for rotary shaft applications requiring lubricant retention around a 0.875-inch shaft within a 1.503-inch 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 lubricant and support protection of bearings, gears, motors, pumps, and other rotating components.

The product is identified by the USI manufacturer designation LGSP. This is a manufacturer-specific profile code. The exact sealing-lip geometry, number of lips, dust-exclusion arrangement, outside-case construction, internal reinforcement, spring configuration, lip orientation, and installation direction should be verified against the original USI seal, technical drawing, or equipment specification before replacement.

Manufactured from NBR (Nitrile Butadiene Rubber), the sealing material 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 before use with aggressive chemicals, certain fuels, specialized synthetic lubricants, ozone-rich environments, or continuous elevated-temperature operation.

The inch dimensions convert approximately to:

Shaft diameter: 0.875 inch / 22.23 mm

Housing diameter: 1.503 inches / approximately 38.18 mm

Seal width: 0.688 inch / approximately 17.48 mm

The relatively broad 0.688-inch / 17.48 mm axial section should be considered when checking installation depth and housing geometry. The width alone should not be used to infer the number of sealing lips or internal components.

⚙️ Applications

• Industrial gearboxes
• Bearing housings
• Industrial pumps
• Electric motor assemblies
• Mechanical drive systems
• Agricultural machinery
• Construction equipment
• Conveyor components
• General rotating machinery
• OEM industrial equipment

🎯 Benefits

✔ Helps retain compatible oil or grease

✔ Suitable for 0.875-inch shaft assemblies

✔ Oil-resistant NBR sealing material

✔ Manufacturer-specific USI LGSP profile

✔ Broad 0.688-inch axial section

✔ Good resistance to abrasion and wear

✔ Suitable for industrial rotating equipment

✔ Useful for maintenance and overhaul work

✔ Replacement ready when dimensions and LGSP profile match

🧠 Technical Insight

• USI LGSP Seal Reference
• Inch-Size Rotary Shaft Seal
• NBR Sealing Material
• Manufacturer-Specific LGSP Profile
• 17.48 mm Axial Width
• Low-Pressure Lubricant Retention
• 22.23 mm Shaft Diameter
• Exact LGSP Cross-Section Must Be Verified

✅ Key Features

• USI Industrial Seal
• LGSP Profile Reference
• Oil-Resistant NBR Material
• Inch-Size Construction
• 0.875x1.503x0.688 Dimensions
• Broad Axial Section
• Industrial Replacement Seal
• Cross-Reference Support Available

📊 Specifications

Brand: USI

Model / Profile: LGSP

Size: 0.875 × 1.503 × 0.688 inch

Metric Equivalent: Approximately 22.23 × 38.18 × 17.48 mm

Type: Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: LGSP

Construction: Manufacturer-Specific USI LGSP Rotary Shaft-Seal Construction

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

Dust Lip: Verify from the actual LGSP cross-section

Spring Type: Verify from the actual seal construction

Shaft Diameter (ID): 0.875 inch / approximately 22.23 mm

Housing Diameter (OD): 1.503 inches / approximately 38.18 mm

Width: 0.688 inch / approximately 17.48 mm

Section Design: Broad axial section; do not infer multiple lips or internal sealing stages solely from the width

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, speed, and operating conditions

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

Installation Consideration: Verify installation depth, housing shoulder geometry, shaft finish and hardness, lip orientation, concentricity, runout, and the complete LGSP cross-section before fitting

Application Class: Compact-to-Medium Industrial Bearing and Rotating Equipment

Standard: Inch-Size Specialized Industrial Seal

🔁 Equivalent

Suitable replacement or cross-reference candidate for compatible:

• USI LGSP NBR Rotary Shaft Seal
• USI 0.875x1.503x0.688 Oil Seal
• 22.23x38.18x17.48 Rotary Seal
• 0.875-Inch Shaft Oil Seal
• Inch-Size NBR Rotary Shaft Seal
• Broad-Section Shaft Seal
• Industrial Bearing Housing Seal
• Industrial Gearbox Shaft Seal
• OEM LGSP Profile Oil Seal
• Industrial NBR Shaft Seal

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

(Always verify dimensions, LGSP-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 gearbox overhaul, bearing-housing maintenance, industrial pump repair, motor servicing, agricultural-machinery repair, conveyor-drive 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