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55*120*29 mm Deep Groove Ball Bearing 6311
Ball Screws

55*120*29 mm Deep Groove Ball Bearing 6311 | RFQ Sourcing Details

Ball Screws · Quote on request

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Product specs

CategoryBall Screws
Unitset
AligningNon-Aligning Bearing
CertificateIATF16946:2016
ClearanceC0 C2 C3
Load DirectionRadial Bearing
MaterialBearing Steel
Model NO.6311
CategoryBall Screws
AvailabilityInquiry required
Source date2026-05-26

Buyer's Digest

Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Ball Screws. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.

Original product description

Packaging & Shipping Our packing Company Information Ningbo Demy (D&M) Bearings Co., Ltd. is a leading manufacturer of ball & roller bearings and exporter of belts, chains and auto parts in China.

We specialize in research and development of various kinds of high precision, non-noise, long-life bearings, high quality chains, belts, auto parts and other machinery & transmission products.

Welcome to visit our sample room Certificate of ISO/TS16949:2009 Product Parameters Brand : BMT;Luman;OEM Bearing Size : GB/T 276-2013 Bearing Material : Bearing Steel Inner Diameter : 3 - 120 mm Rolling : Steel balls Outer Diameter : 8 - 220 mm Cage : Steel;Nylon Width Diameter : 4 - 70 mm Oil/Grease : Chevron greatwall etc… Clearance : C2;C0;C3;C4 ZZ bearing : White , Yellow etc… Precision : ABEC-1;ABEC-3;ABEC-5 RS bearing : Black , Red,brown etc… Noise Level : Z1/Z2/Z3/Z4 Open bearing : No cover Vibration Level : V1/V2/V3/V4 About us Ningbo Demy (D&M) Bearings Co., Ltd.

was established in 2005 and one of leading ball & roller bearing manufacturers & belt, chain, auto-parts exporters in China. It is specialized in research and development for various kinds of high precision, non-noise, long-life bearings, high quality chains, belts, auto-parts and other machinery&transmission products.

At present, demy has more than 500 employees and produces 50 million sets of bearings annually.

Due to our many years of experience and our own manufacturing in yuyao china bearing town , DEMY has already served thousands of customers around the world.we participate in major professional exhibitions at home and abroad every year.

Good quality control and competitive prices Each goods is processed by our internal quality management (ISO 9001:2000) with the corresponding testing, such as noise testing, checks of grease application, sealing checks, hardness degree of the steel as well as measurements.

Adherence to delivery dates, flexibility and reliability have had strong foundations in the corporate philosophy for years now. DEMY is good at offering customer-specific quality at attractive and competitive prices. Why Choose US ? 1.

History : DEMY(D&M)BEARING CO., LTD is located in Hemudu Culture Ruins of Ningbo China which has 7000-year-old history. It is specialized in research and development for various kinds of high precision, non-noise, long-life bearings, high quality chains, belts

55*120*29 | Applications and Buyer Notes

55*120*29 is organized as a sourcing-ready Ball Screws reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time questions b

Applications

  • Initial shortlist building for related product or supplier options.
  • Specification and application fit review before bulk purchasing.
  • Category, keyword and detail-page comparison before sending an RFQ.

Key specifications

Category
Ball ScrewsBased on visible page data; confirm exact value in the RFQ.
Unit
setBased on visible page data; confirm exact value in the RFQ.
Aligning
Non-Aligning BearingBased on visible page data; confirm exact value in the RFQ.
Certificate
IATF16946:2016Based on visible page data; confirm exact value in the RFQ.
Clearance
C0 C2 C3Based on visible page data; confirm exact value in the RFQ.
Load Direction
Radial BearingBased on visible page data; confirm exact value in the RFQ.
Material
Bearing SteelBased on visible page data; confirm exact value in the RFQ.
Model NO.
6311Based on visible page data; confirm exact value in the RFQ.

Buyer tips

  • State quantity range and split-delivery needs before price comparison.
  • Add certification, material or inspection standards when they affect acceptance.
  • For time-sensitive projects, include target arrival date and destination.
  • For special applications, describe operating condition, installation environment and duty cycle.

FAQ

What should buyers confirm first?

Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.

Can buyers inquire when specs are incomplete?

Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.

How should this listing be evaluated?

Check title, category, specifications and related keywords against the actual sourcing requirement.

Source mix: ugc

Key specifications

CategoryBall Screws
Unitset
AligningNon-Aligning Bearing
CertificateIATF16946:2016
ClearanceC0 C2 C3
Load DirectionRadial Bearing
MaterialBearing Steel
Model NO.6311
NoiseZ1 Z2 Z3
OriginChina
Precision RatingP0 P6 P5
Rows NumberSingle
SealsOpen, 2RS, Zz
SeparatedUnseparated
ServiceOEM
Specification55*120*29 mm
TrademarkBMT
Transport PackageIndustrial Packaging
VibrationV1 V2 V3
Weight1.367kg

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