EKB 88128R Z2V2 Deep Groove Ball Bearing | Raised Inner Ring | 38.894×80 mm

The EKB 88128R Z2V2 is a deep groove ball bearing with a raised inner ring, designed for applications requiring specific dimensions, lubrication and noise or vibration performance.

With experience supplying customer-specific bearing configurations, EKB supports customized technical requirements according to drawings and agreed specifications. Grease type, grease filling, noise and vibration grade, radial clearance and inspection requirements can be discussed before ordering.

Send us your original part number, drawing or application requirements. We will review the specifications and confirm the available supply options before quotation.

88128R Z2V2 Product Specifications

Note: The dimensions and technical values above are based on the supplied product information. Confirm the approved drawing revision, dimensional tolerances, test methods and acceptance criteria before ordering. Final specifications are subject to the agreed technical documents.

Raised Inner Ring Design

The 88128R features a raised inner ring, with an inner ring width of 27.5 mm and an outer ring width of 21 mm. This difference in ring width is an important identification feature.

When replacing an existing bearing, please check the bore, outside diameter, inner and outer ring widths, mounting arrangement and other relevant requirements. Bearings with similar dimensions are not necessarily interchangeable.

Technical Drawing

Refer to the technical drawing for the bearing configuration and main dimensions. Please use the approved drawing for manufacturing, dimensional verification and final acceptance.

Custom Bearing Specifications Available

The 88128R Z2V2 configuration demonstrates EKB's experience with customer-specific bearing requirements. Depending on the application and technical feasibility, the following items can be reviewed for other orders:

• Specified grease brand and grease filling quantity

• Noise and vibration acceptance grades (Z2V2 for electric motor duty)

• Radial clearance requirements

• Dimensional tolerances and fit requirements

• Inspection items and quality documentation

• Packaging and order-specific requirements

Customization is subject to drawing review, supplier capability, technical confirmation and order quantity. Please provide your requirements so we can review the appropriate configuration before quotation.

Quality Inspection & Verification

EKB has its own quality inspection personnel and measuring equipment. Bearings sourced from partner factories are re-inspected according to the inspection requirements agreed for each order.

For 88128R Z2V2 orders, dimensional checks and applicable noise or vibration tests should be confirmed against the approved drawing and agreed acceptance criteria. Inspection records and supporting documents can be discussed and confirmed before shipment.

Learn more about our Quality Control and Quality Inspection Equipment.

EKB Supply Capability

EKB combines its own bearing manufacturing capabilities with an established partner-factory network. We support industrial buyers, distributors and maintenance teams with mixed purchasing lists, hard-to-find bearings, non-standard dimensions and flexible order requirements.

The supply route depends on the specific product and order. Our team reviews the required model, specifications and inspection requirements before confirming the quotation.

Learn more about About EKB and our Production Equipment.

Packaging & Shipment

Packaging can be arranged according to order quantity, transportation method and customer requirements. Anti-rust protection, individual packaging, cartons and pallet packing can be discussed before dispatch. The final packaging method, availability and lead time are confirmed for each order.

See our Warehouse & Shipment information for more details.

Related Non-Standard Deep Groove Ball Bearings

Looking for another non-standard deep groove ball bearing? You can also view our 63/28-2RS-C3 non-standard deep groove ball bearing.

Browse more products in our Special Dimension Deep Groove Ball Bearings category.

Frequently Asked Questions

What are the dimensions of the 88128R Z2V2 bearing?
The specified dimensions are 38.894 mm bore × 80 mm outside diameter, with a 27.5 mm inner ring width and a 21 mm outer ring width.

What does the raised inner ring mean?
The inner ring is wider than the outer ring in this configuration. The specified inner ring width is 27.5 mm, compared with 21 mm for the outer ring.

Can the grease be customized?
Yes. Standard grease is supplied as default. Mobil Polyrex EM or other specified grease can be supplied on request.

Can other noise and vibration grades be requested?
Standard product ships Z0. Z2V2 low-noise grade (≤46 dB) is available per this drawing on request. Please provide your required grade and test criteria.

Can EKB help identify a replacement bearing?
Yes. Send the original part number, drawing, dimensions or clear photographs. Our team can review the information and help check possible matching specifications. Similar dimensions alone do not guarantee interchangeability.

Use our Bearing Identification & Cross-Reference Service for assistance.

Request a Quote for 88128R Z2V2

Looking for the 88128R Z2V2 deep groove ball bearing or a similar custom configuration? Send EKB your drawing, required quantity, grease specification, noise and vibration requirements, and target delivery date.

We will review the technical requirements, confirm the available supply options and agree on the applicable inspection criteria before quotation.

Contact EKB for a Quote