What is the delivery time for orders?

Most orders will be shipped within 3-5 days after payment is received. Samples are shipped via couriers like FedEx, UPS, or DHL.

What is the precision grade of this bearing?

The bearing is available in P4 precision grade.

Which industries commonly use this bearing?

It is widely used in the automobile, rolling mill, mining, metallurgy, and plastic machinery industries.

Tapered Roller Bearing 7721* Auto Bearing

Name: Tapered Roller Bearing 7721* Auto Bearing
Brand: Luoyang Auto Bearing Co., Ltd.
SKU: 1903507812

Henan, ChinaLuoyang Auto Bearing Co., Ltd.

US$1.00

10 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Rolling Body

Roller Bearings

The Number of Rows

Single

Model NO.

7721*

Outer Dimension

Large (200-430mm)

Material

Bearing Steel

Spherical

Non-Aligning Bearings

Load Direction

Radial Bearing

Separated

Unseparated

Packaging

White Box

Hardness

58-62

Brand

Auto

Precision

Transport Package

Wooden Box

Specification

Depends on quantity

Trademark

AUTO

Origin

China

HS Code

8482990000

Production Capacity

150000/Day

Key features

High Load Capacity: Supports heavier radial-axial combined loads with higher limit rotational speeds.

Separable Design: Inner and outer rings can be mounted separately for easy installation and maintenance.

Wide Application: Suitable for automobiles, rolling mills, mining, metallurgy, and plastic machinery.

ISO9001 Certified: Manufactured under strict ISO9001 quality management for precision and stability.

Custom Packaging: Packaging options include white box, plastic box, or customized solutions per need.

Fast Delivery: Most orders shipped within 3-5 days after payment; samples via FedEx, UPS, DHL.

High Precision Grade: Available in P4 precision grade with hardness 58-62 for superior performance.

Radial-Axial Support: Specifically designed to limit axial displacement in double directions effectively.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExhibition Experience

Luoyang Auto Bearing Co., Ltd.

Henan, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤0.46h

AI-Powered supplier vetting

SummaryLuoyang Auto Bearing Co., Ltd. is identified as a China-based limited company and manufacturer/factory offering ball, roller, and super-precision bearings. The supplier reports multiple management-system certifications, customization services, OEM experience with popular brands, and technical support covering customer requirements, production, after-sales service, and new product development. However, no R&D design documentation was available for audit, no SDK is available, and supplier-service assessment procedures and corrective-action records are incomplete. The available evidence supports product and customization capability, while financial credibility and customer-case breadth remain insufficiently documented. Overseas service infrastructure is limited, with no overseas warehouse, showroom, agent, or branch reported.

CertificationsThe supplier reports ISO 9000, TS 16949, ISO 14001, and ISO 9001 certifications. These stated certifications provide explicit evidence of formal quality and environmental management-system coverage.

Production capacityThe supplier is identified as a bearing manufacturer/factory offering ball, roller, and super-precision bearings, and a specific stainless-steel turntable bearing is described as produced by Luoyang Auto Bearing for a canning-machine application. Its stated zero-defect quality philosophy and relevant management-system certifications support production capability, although detailed capacity data is not provided.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, flexible customization, and minor customization. It also reports OEM service for popular brands, providing direct evidence of broad customization and OEM capability.

Client casesThe supplier reports OEM service for popular brands and one associated buyer, CÔNG TY CỔ PHẦN TẬP ĐOÀN HƯƠNG SEN. A product is also specified for use in a Krones canning machine, and the supplier has participated in the Vietnam VIIF International Industrial Expo; however, the available evidence provides only limited customer-case detail.

Product Q&A

Q:What is the main function of Tapered Roller Bearing 7721*?

It is designed to bear heavier radial-axial combined loads with higher limit rotational speeds and limit axial displacement in double directions.

Q:Is the bearing separable?

Yes, it is a separate type bearing where the tapered inner ring (roller and retainer assembly) can be mounted separately from the tapered outer ring.

Q:What are the principal dimensions of bearing 7721*?

The dimensions are: d=105mm, D=215mm, T=78mm, B=73mm, C=60mm, rmin=3mm.

Q:What is the rated load and limiting speed?

Dynamic Cr is 500 kN, Static Cor is 755 kN. Limiting speed is 1900 r/min for grease and 2800 r/min for oil.

Q:What packaging options are available?

Options include plastic box & outer carton & pallets, plastic bag & box & carton & pallets, tube package, or customized packaging based on customer needs.