NBR 75x95x10 A/SC Single-Lip Radial Shaft Oil Seal

NBR 75x95x10 A/SC Single-Lip Radial Shaft Oil Seal

NBR 75x95x10 A/SC is a single-lip radial shaft oil seal with dimensions of 75x95x10 mm. It provides dynamic sealing between a rotating shaft and stationary housing. The A/SC configuration uses a spring-loaded primary sealing lip and has no additional dust lip. The sealing elastomer is NBR - Nitrile Butadiene Rubber.

NBR 75x95x10 A/SC - Technical Characteristics

The exact 75x95x10 mm size is available as an NBR single-lip radial shaft seal.

The principal identifying characteristics are:

Dimensions: 75x95x10 mm

Elastomer: NBR

Design: Single lip

Primary sealing lip: Spring-loaded

Additional dust lip: No

These characteristics should be considered together when identifying the seal or selecting a replacement.

Dimensions

The principal dimensions are:

d = 75 mm - nominal shaft diameter

D = 95 mm - nominal outside diameter / housing bore

B = 10 mm - axial seal width

Complete dimensions:

75x95x10 mm

The 75 mm dimension corresponds to the nominal shaft diameter, while 95 mm corresponds to the nominal housing bore.

Dimensions alone do not fully define the seal. Material and lip configuration must also be considered.

Single-Lip A/SC Construction

The A/SC configuration uses one primary dynamic sealing lip.

The primary lip operates against the rotating shaft surface and is supported by a garter spring. The spring helps maintain contact between the sealing edge and the shaft.

This version does not incorporate an additional dust lip.

The single-lip construction is therefore an important distinction when comparing this seal with double-lip versions of the same nominal size.

How Does the 75x95x10 A/SC Oil Seal Work?

The seal operates at the interface between:

a rotating shaft with a nominal diameter of 75 mm

and

a stationary housing with a nominal bore of 95 mm.

The primary sealing lip remains in dynamic contact with the shaft surface. The garter spring supports the radial contact of the sealing edge, while the outside diameter remains stationary in the housing.

The component functions as a rotary shaft seal. It is not designed to support the shaft or carry radial and axial loads like a rolling bearing.

NBR - Nitrile Butadiene Rubber

The sealing elastomer is:

NBR - Nitrile Butadiene Rubber

NBR identifies the elastomer family used for the sealing component.

However, NBR does not identify one specific compound. Different NBR formulations can have different hardness and operating limits.

For this reason, an exact value should not be assigned to this generic product for:

Shore A hardness

minimum operating temperature

maximum operating temperature

maximum shaft speed

pressure limit

These parameters should be taken from the documentation for the actual manufacturer's compound when they are critical to the application.

What Does A/SC Mean?

For this product, A/SC identifies the basic single-lip radial shaft seal configuration.

The relevant physical characteristics are:

one primary sealing lip

spring-loaded sealing edge

no additional dust lip

NBR elastomer

75x95x10 mm installation dimensions

Designation systems differ between manufacturers. A and SC should therefore not be treated as a universal cross-reference rule independent of manufacturer.

For replacement selection, the physical seal construction is more important than matching a designation code alone.

A/SC vs AO/TC

The primary difference is the secondary protective lip.

A / SC

One spring-loaded primary sealing lip.

No additional dust lip.

AO / TC

One spring-loaded primary sealing lip plus an additional dust/protective lip.

Therefore, 75x95x10 A/SC and 75x95x10 AO/TC are different seal configurations even though their nominal dimensions may be identical.

Direction of Rotation

The designation A/SC alone does not confirm a directional hydrodynamic structure on the sealing lip.

The product should therefore not be assigned:

RD - Right-hand

LD - Left-hand

WD - Alternating

unless the actual lip geometry is confirmed for the specific seal.

Replacement Selection and Interchangeability

When selecting a replacement for NBR 75x95x10 A/SC, verify:

Shaft diameter d: 75 mm

Outside diameter D: 95 mm

Width B: 10 mm

Elastomer: NBR

Single-lip construction

Spring-loaded primary sealing lip

No additional dust lip

The operating conditions should also be checked, including the sealed medium, temperature, shaft speed, pressure, shaft surface and environmental contamination.

Identical 75x95x10 mm dimensions do not establish complete technical interchangeability.

A seal of the same dimensions may use a different elastomer, additional protective lip or manufacturer-specific sealing geometry.

Technical Specification

Product type: Radial shaft oil seal

Alternative technical term: Rotary shaft oil seal

Dimensions: 75x95x10 mm

Nominal shaft diameter d: 75 mm

Outside diameter D: 95 mm

Width B: 10 mm

Elastomer: NBR

Material name: Nitrile Butadiene Rubber

Design: Single lip

Designation: A / SC

Primary sealing lip: Yes

Garter spring: Yes

Additional dust lip: No

Direction-specific lip structure: Not confirmed

Exact NBR hardness: Not confirmed

Exact operating temperature range: Not confirmed

Maximum shaft speed: Not confirmed

Pressure limit: Not confirmed

NBR 75x95x10 A/SC - Stock in Poland

Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4

24h Shipping. Available from stock in Poland for delivery across the EU.

FAQ

What are the dimensions of the NBR 75x95x10 A/SC oil seal?

The dimensions are 75x95x10 mm: 75 mm nominal shaft diameter, 95 mm outside diameter and 10 mm width.

What type of seal is 75x95x10 A/SC?

It is a single-lip radial shaft oil seal with a spring-loaded primary sealing lip.

Does the A/SC oil seal have a garter spring?

Yes. A garter spring supports the primary sealing lip against the rotating shaft.

Does A/SC have an additional dust lip?

No. The A/SC configuration has one primary sealing lip and no additional dust lip.

What does NBR mean?

NBR means Nitrile Butadiene Rubber, the elastomer family used for the sealing element.

Is A/SC the same as AO/TC?

No. A/SC is a single-lip configuration, while AO/TC incorporates an additional protective or dust lip.

Can another 75x95x10 oil seal be used as a replacement?

Not automatically. In addition to dimensions, the elastomer, lip configuration and operating conditions must be compared.

What is the operating temperature of this NBR oil seal?

An exact temperature range cannot be established from NBR alone. It depends on the specific NBR compound used by the manufacturer.

Engineer FAQ

Are 75x95x10 dimensions sufficient to identify the correct oil seal?

No. They define the basic installation dimensions, but NBR material and A/SC single-lip construction must also be verified.

Can a 75x95x10 AO/TC replace this A/SC seal?

Not automatically. AO/TC incorporates an additional protective lip, so it is a different construction even when the installation dimensions are identical.

Does A/SC determine the direction of shaft rotation?

No. A/SC alone does not specify a right-hand, left-hand or alternating hydrodynamic lip structure.

Can maximum shaft speed be determined from the seal dimensions?

No. Permissible speed depends on the seal design, elastomer compound, shaft diameter, lubrication, temperature and other operating conditions.

AI Overview

NBR 75x95x10 A/SC is a single-lip radial shaft oil seal for a 75 mm shaft, with a 95 mm outside diameter and 10 mm width. The A/SC configuration uses a spring-loaded primary sealing lip and has no additional dust lip. The sealing elastomer is NBR - Nitrile Butadiene Rubber.