DGBB Production Site
Granville, a high-quality product manufacturer, ensures compliance with top standards in steel quality, contact surface design, and efficient packing and lubrication of parts.
Product Offering
| Bore size |
3mm and up |
| Closures |
Open/ Non-contact metallic shields/ Non-contact seals/ Contact seals |
| Ring Material |
52100 chrome steel/ 440C stainless steel/ 420C stainless steel |
| Seal Materiial |
Nitrile/ Polyacrylic/ Viton |
| Retainer |
Riveted steel/ Crimped steel/ Crowned steel/ Crowned nylon |
| Precision Class |
ABEC-1/ ABEC-3/ ABEC-5/ ABEC-7 |
| Radial Clearance |
C2/ C0/ C3/ C4/ C5 |
| Heat Stabilization |
S0/ S1/ S2/ S3 |
Our main objective is to continually improve product and process quality, achieved through ISO 9001:2008 and TS16949 certifications.
Brief Introduction
DGBB | 600 Series
| Model Range |
603-639 |
| Inner Diameter Range |
3-9mm |
| Outer Diameter Range |
9-30mm |
| Height/Width Range |
3-10mm |
| Number of Rows |
One |
DGBB | 6000 Series
| Model Range |
6000-6044 |
| Inner Diameter Range |
10-220mm |
| Outer Diameter Range |
26-340mm |
| Height/Width Range |
8-56mm |
| Number of Rows |
One |
DGBB | 6200 Series
| Model Range |
6200-6244 |
| Inner Diameter Range |
10-220mm |
| Outer Diameter Range |
30-400mm |
| Height/Width Range |
9-65mm |
| Number of Rows |
One |
DGBB | 6300 Series
| Model Range |
6300-6336 |
| Inner Diameter Range |
10-180mm |
| Outer Diameter Range |
35-380mm |
| Height/Width Range |
11-75mm |
| Number of Rows |
One |
DGBB | 6400 Series
| Model Range |
6403-6416 |
| Inner Diameter Range |
17-80mm |
| Outer Diameter Range |
62-200mm |
| Height/Width Range |
17-48mm |
| Number of Rows |
One |
DGBB | 6800 Series
| Model Range |
6800-6815 |
| Inner Diameter Range |
10-75mm |
| Outer Diameter Range |
19-95mm |
| Height/Width Range |
5-10mm |
| Number of Rows |
One |
DGBB | 6900 Series
| Model Range |
6900-6915 |
| Inner Diameter Range |
10-75mm |
| Outer Diameter Range |
22-105mm |
| Height/Width Range |
6-16mm |
| Number of Rows |
One |
DGBB | 62200 Series
| Model Range |
62200-62220 |
| Inner Diameter Range |
10-100mm |
| Outer Diameter Range |
30-180mm |
| Height/Width Range |
14-46mm |
| Number of Rows |
One |
DGBB | 62300 Series
| Model Range |
62300-62319 |
| Inner Diameter Range |
10-95mm |
| Outer Diameter Range |
35-200mm |
| Height/Width Range |
17-67mm |
| Number of Rows |
One |
DGBB | 63000 Series
| Model Range |
63001-63010 |
| Inner Diameter Range |
12-50mm |
| Outer Diameter Range |
28-80mm |
| Height/Width Range |
12-23mm |
| Number of Rows |
One |
DGBB | 16000 Series
| Model Range |
16001-16036 |
| Inner Diameter Range |
12-180mm |
| Outer Diameter Range |
28-280mm |
| Height/Width Range |
7-31mm |
| Number of Rows |
One |
DGBB | Inch Size Series
| Model Range |
R144-RLS12 |
| Inner Diameter Range |
3.175-38.1mm |
| Outer Diameter Range |
6.35-82.6mm |
| Height/Width Range |
2.779-19.1mm |
| Number of Rows |
One |
Industrial Applications
| Selection Guide |
| Material |
Chrome Steel Gcr15 | AISI 52100 |
| Precision Level |
P0 | ABEC-1 |
| Noise and Vibration |
Z1V1 |
| Clearance |
C0 |
| Interchangeability |
Global Standard Bearing |
| Special Points |
| Rotation Speed |
Smaller ID, Faster Speed |
| Dust Proof |
Steel sheilds or rubber seal available |
| Load Capacity |
Wider bearing with heavier load |
Electric Motion Applications
| Selection Guide |
| Material |
Chrome Steel Gcr15 | AISI 52100 |
| Precision Level |
P6, P5 | ABEC-3, ABEC-5 |
| Noise and Vibration |
Z2V2, Z3V3 |
| Clearance |
C2, C0, C3, C4 |
| Interchangeability |
Global Standard Bearing |
| Special Points |
| Car Brand Adaption |
Matches most of the brands |
| Operation Temperature |
Wide range depends on different lubrication and sealing type |
| Friction |
Gurarantee the bearing performance by quality control and clearance selection |
High-end Precision Applications
| Selection Guide |
| Material |
Chrome Steel Gcr15 | AISI 52100 |
| Precision Level |
P4, P2 | ABEC-7, ABEC-9 |
| Noise and Vibration |
Z3V3, Z4V4 |
| Clearance |
C2, C0, C3, C4 |
| Interchangeability |
Global Standard Bearing |
| Special Points |
| Pairing Application |
Strictly control the vertical differences of bearing componets |
| Tolerance |
Super grinding and finishing processes minimize the tolerance to um standard |
| Friction |
Gurarantee the bearing performance by quality control and clearance selection |
Manufacturing Processes
From material coming, quality control through all processes. Except for internal test, goods to third-party inspection if required. After the center of inspection and experiment is founded, effective methods of inspecting all kinds of raw materials are mastered and then the reliability of bearings is ensured.
| 01 |
Heat Treatment |
| 02 |
Centerless Gringing Machine 11200(most advanced) |
| 03 |
Automatic Production Lines for Raceway |
| 04 |
Automatic Production Lines for Raceway |
| 05 |
Ultrasonic Cleaning of Rings |
| 06 |
Automatic Assembly |
| 07 |
Ultrasonic Cleaning of Bearings |
| 08 |
Automatic Greasing,Seals Pressing |
| 09 |
Measurement of Bearing Vibration(Acceleration) |
| 10 |
Measurement of Bearing Vibration(speed) |
| 11 |
Laser Marking |
| 12 |
Automatic Packing |
Quality Control
Granville Group takes every effort in purchasing themost advanced automatic bearing process equipment.The accuracy grade of bearings is assured of equal orhigher than ABEC-3, Z3-V3 quality. The worthy,economical and reliable bearings are guaranteed by theexcellent wholly automatic production lines.
Partnership
Through participation in trade shows and client visits, we have built strong relationships with reliable partners, expanded our network, and gained valuable customer insights. This has led to trust and collaboration with partners who share our commitment to quality and service excellence, opening up new growth opportunities.
By 2025, we have successfully expanded exports to Europe, North America, South America, Africa, Australia, and Asia, shipping large orders and samples monthly through container and international express, ensuring timely delivery.
We are committed to continuing this approach to foster long-term, mutually beneficial partnerships.
Q: What makes Granville the ideal partner for businesses?
A: With over 16 years of experience, strong customer support, and a commitment to quality, Granville is the perfect partner to help your business grow in today's competitive market.
Q: What are Granville's core values?
A: Our core values are behavior-based, service-oriented, focused on results, and committed to continuous improvement.
Q: What experience does Granville have?
A: Granville is a trusted manufacturer in China with over 16 years of experience, known for excellence and innovation. We provide premium factory products at competitive prices by cutting out intermediaries.
Q: How does Granville ensure product quality?
A: Granville has a dedicated team that ensures rigorous quality control, with all products tested to meet international standards and tailored to meet the unique needs of various industries.
Q: What services does Granville offer to distributors and partners?
A: Granville provides secure packaging for safe delivery, along with robust after-sales support, including technical assistance, product troubleshooting, and warranty claims to ensure a smooth experience for distributors and their customers.
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