Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike
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Product Highlights
- Double Rubber Seals: 2RS sealed design effectively protects against dust, dirt, and moisture for long service life.
- Custom Logo and Packaging: Customized LOGO, drawings, and packaging available upon request.
- Multiple Material Options: Available in chrome steel, stainless steel, ceramic, or carbon steel based on needs.
- High Precision Ratings: Offers ABEC-3, ABEC-5, and ABEC-7 precision classes for various applications.
- ISO Certified Quality: Manufactured under ISO 9001, TS 16949, and RoHS certified quality systems.
- Low Friction Performance: Designed for smooth rotation with low friction and durable performance.
- Comprehensive QC Process: Strict quality control following APQP, SPC, MSA, FMEA, and PPAP standards.
Product Attributes
- Customization
- Available
- Contact Angle
- 45°
- Aligning
- Aligning Bearing
- Model NO.
- K4052H7
- Separated
- Unseparated
- Rows Number
- Single
- Load Direction
- Radial Bearing
- Material
- Bearing Steel
- Sealing
- 2RS (Double Rubber Sealed)
- Series
- Deep Groove Ball Bearing
- Bearing Type
- Deep Groove Ball Bearing
- Ball Material
- Chrome Steel (GCr15)
- Ring Material
- Bearing Steel (SUJ2 / GCr15)
- Cage Type
- Steel Stamped Cage
- Grease Type
- Lithium-based Grease
- ABEC Rating
- ABEC-3 (Precision Class)
- Operating Temperature Range
- -20°C ~ +120°C
- Water & Dust Resistance
- Good (2RS Sealed)
- Application1
- Pulleys, Headset
- Installation Method
- Press-fit
- Certificate
- ISO 9001 & TS 16949 & RoHS
- Quality Control
- APQP SPC MSA FMEA
- Transport Package
- Industrial Package / Color Box
- Specification
- 40x52x7mm
- Trademark
- Follow Customer's requested
- Origin
- China
- HS Code
- 8482200000
- Production Capacity
- 800000 Pieces / Year
- Package Size
- 5.40cm * 5.40cm * 1.70cm
- Package Gross Weight
- 0.170kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike
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Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike -
Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike -
Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike -
Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike -
Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike -
Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike -
Bicycle Angular Contact Ball Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike
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Product Description
GIL III Bike Bearing
K4052H7-45/45-2RS bicycle bearing is a high-performance sealed ball bearing, with dimensions 40x52x7mm. It is widely used in bicycle hubs and bottom brackets. Featuring double rubber seals (2RS), it effectively protects against dust, dirt, and moisture, ensuring long service life and smooth rotation. Available in chrome steel or stainless steel, this bearing is suitable for both OEM and aftermarket needs. Custom packaging and laser marking available upon request.
Applications:
- Bicycle hubs
- Bottom brackets
- DIY bike repair or replacemen
-
High precision sealed ball bearing (ABEC-5/ABEC-7)
-
Suitable for bicycle bottom bracket and hubs
-
Double rubber seals for dust and water resistance
-
Low friction, durable performance
-
Available in stainless or chrome steel
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| Bearing No | Overall Dimension | Load Rating(N) | Steel Ball | ||||||
| d | D | B | a | β | Cr | Cor | Quantity | Dimension | |
| ACB2738H6.5-36/45-2RS | 27.15 | 38.0 | 6.5 | 36° | 45° | 4090 | 3120 | 20 | 3.175 |
| ACB2738H6.3-45/45-2RS | 27.20 | 38.0 | 6.3 | 45° | 45° | 4090 | 3120 | 20 | 3.175 |
| ACB3039H6.5-45/45-2RS | 30.15 | 39.0 | 6.5 | 45° | 45° | 3500 | 3050 | 26 | 2.778 |
| ACB3041H6.5-36/45-2RS | 30.15 | 41.0 | 6.5 | 36° | 45° | 4450 | 3850 | 25 | 3.175 |
| ACB3041H6.5-45/45-2RS | 30.15 | 41.0 | 6.5 | 45° | 45° | 4450 | 3850 | 25 | 3.175 |
| ACB3041H6.3-45/45-2RS | 30.20 | 41.0 | 6.3 | 45° | 45° | 4450 | 3850 | 25 | 3.175 |
| ACB30418H6.3-45/45-2RS | 30.20 | 41.8 | 6.3 | 45° | 45° | 4450 | 3850 | 25 | 3.175 |
| ACB30418H6.5-45/45-2RS | 30.15 | 41.8 | 6.5 | 45° | 45° | 4450 | 3850 | 25 | 3.175 |
| ACB30418H7-45/45-RS | 30.15 | 41.8 | 7.0 | 45° | 45° | 4450 | 3850 | 25 | 3.175 |
| ACB30418H7-36/45-RS | 30.15 | 41.8 | 7.0 | 36° | 45° | 4450 | 3850 | 25 | 3.175 |
| ACB30418H7-45/45-2RS | 30.20 | 41.8 | 7.0 | 45° | 45° | 4440 | 3840 | 25 | 3.175 |
| ACB30418H8-45/45-RS | 30.50 | 41.8 | 8.0 | 45° | 45° | 4440 | 3840 | 25 | 3.175 |
| ACB30418H8F-45/45-RS | 30.50 | 41.8 | 8.0 | 45° | 45° | 4440 | 3840 | 25 | 3.175 |
| ACB3042H7-36/45-2RS | 30.05 | 42.0 | 7.0 | 36° | 45° | 4440 | 3840 | 25 | 3.175 |
| ACB33438H7-30/45-2RS | 33.05 | 43.8 | 7.0 | 30° | 45° | 4140 | 3520 | 23 | 3.175 |
| ACB34468H7-45/45-2RS | 34.10 | 46.8 | 7.0 | 45° | 45° | 4740 | 4290 | 28 | 3.175 |
| ACB34469H7-45/45-2RS | 34.10 | 46.9 | 7.0 | 45° | 45° | 4740 | 4290 | 28 | 3.175 |
| ACB3547H7-36/45-2RS | 35.0 | 47.0 | 7.0 | 36° | 45° | 4720 | 4290 | 28 | 3.175 |
| ACB3749H7-45/45-2RS | 37.0 | 49.0 | 7.0 | 45° | 45° | 4940 | 4580 | 30 | 3.175 |
| ACB40518H8-36/45-RS | 40.0 | 51.8 | 8.0 | 36° | 45° | 4820 | 4550 | 30 | 3.175 |
| ACB4052H6.5-36/45-2RS | 40.0 | 52.0 | 6.5 | 36° | 45° | 4820 | 4550 | 30 | 3.175 |
| K4052H7-45/45-2RS | 40.0 | 52.0 | 7.0 | 45° | 45° | 4820 | 4550 | 30 | 3.175 |
| K4052H8-45/45-2RS | 40.0 | 52.0 | 8.0 | 45° | 45° | 4820 | 4550 | 30 | 3.175 |
| CATALOG FOR HEADSET BEARINGS | ||||||
| Bearing No. | Bore(d)(mm) | Outer(D)(mm) | Width(B)(mm) | Angle(Cl) | Angle(C2) | Weight(g) |
| ACB2738H6.5-36/45 | 27.15 | 38 | 6.5 | 36° | 45° | 18.2 |
| ACB2738H6.3-45/45 | 27.15 | 38 | 6.3 | 45° | 45° | 19 |
| ACB3044H8-45/45 | 30.05 | 44 | 8 | 45° | 45° | 31.5 |
| ACB3039H6.5-45/45 | 30.15 | 39 | 6.5 | 45° | 45° | 16 |
| ACB3041H6.3-45/45 | 30.15 | 41 | 6.3 | 45° | 4S° | 19 |
| ACB3041H6.S-45/45 | 30.15 | 41 | 6.5 | 45° | 4S° | 19 |
| ACB304H6.5-36/45 | 30.15 | 41 | 6.5 | 36° | 45° | 19.6 |
| ACB3041H7-45/45 | 30.15 | 41 | 7 | 45° | 4S° | 20 |
| ACB3041H7.7-36/45 | 30.15 | 41 | 7.7 | 36° | 45° | 21.4 |
| ACB30415H6.5-36/36 | 30.15 | 42 | 6.5 | 36° | 36° | 20 |
| ACB30418H8-45/45 | 30.15 | 42 | 8 | 45° | 45° | 21 |
| ACB30418H6.5-45/45 | 30.15 | 42 | 6.5 | 45° | 4S° | 22 |
| ACB30418H7-45/45 | 30.15 | 42 | 7 | 45° | 4S° | 22.6 |
| ACB30418H6.3-45/45 | 30.15 | 42 | 6.3 | 45° | 45° | 23 |
| ACB30418H7-36/45 | 30.15 | 42 | 7 | 36° | 45° | 23.5 |
| ACB3042H7-36/36 | 30.15 | 42 | 7 | 36° | 36° | |
| ACB3042H7-36/45 | 30.15 | 42 | 7 | 36° | 45° | |
| ACB302418H6.3-45/45 | 30.2 | 42 | 6.3 | 45° | 4S° | 21 |
| ACB30243H7.2-45/45 | 30.2 | 43 | 7.2 | 45° | 4S° | 23.2 |
| ACB302447H7-45/45 | 30.2 | 45 | 7 | 45° | 45° | 32 |
| ACB302448H7.9-45/45 | 30.2 | 45 | 7.9 | 45° | 45° | 33.4 |
| ACB305418H.7-45/45 | 30.5 | 42 | 7.7 | 45° | 45° | 22 |
| ACB305418H8-45/45 | 30.5 | 42 | 8 | 45° | 45° | 23 |
| ACB305418H6.3-45/45 | 30.5 | 42 | 6.3 | 45° | 45° | |
| ACB307418H7.7-45/45 | 30.7 | 42 | 7.7 | 45° | 45° | |
| ACB3144H6.3-45/45 | 31.4 | 44 | 6.3 | 45° | 45° | 30 |
| ACB31448H6.3-45/45 | 31.4 | 45 | 6.3 | 45° | 45° | 32.6 |
| ACB32438H7-45/45 | 32.4 | 43.8 | 7 | 45° | 45° | 23 |
| ACB32418H6-45/45 | 32.8 | 41.8 | 6 | 4S° | 45° | 16 |
| ACB3344H6-36/45 | 33 | 44 | 6 | 36° | 45° | 21 |
| ACB33438H7-30/45 | 33.05 | 43.8 | 7 | 30° | 45° | 23.8 |
| ACB334SH7-45/45 | 33.5 | 45 | 7 | 45° | 45° | 26.2 |
| ACB3446H7-45/45 | 34.1 | 46 | 7 | 4S° | 4S° | 25 |
| ACB34468H7-45/45 | 34.1 | 46.8 | 7 | 45° | 45° | 27.7 |
| ACB34469H7-45/45 | 34.1 | 46.9 | 7 | 45° | 45° | |
| ACB3544H5-90/90 | 35 | 44 | 5 | 90° | 90° | 16 |
| ACB3544H5.5-36/45 | 35 | 44 | 5.5 | 36° | 4S° | 32 |
| ACB354535H7.3-45/45 | 35 | 45.35 | 7.3 | 45° | 45° | 22.3 |
| ACB3547H8-45/45 | 35 | 47 | 8 | 45° | 45° | 29.9 |
| ACB36458H6.5-45/45 | 36.8 | 45.8 | 6.5 | 45° | 45° | 18.9 |
| ACB3748H7-45/45 | 37 | 48 | 7 | 45° | 45° | 27 |
| ACB37489H6.5-36/45 | 37 | 48.9 | 6.5 | 36° | 45° | 25.9 |
| ACB3749H6.5-36/45 | 37 | 49 | 6.5 | 36° | 45° | 25.25 |
| ACB3749H7-36/45 | 37 | 49 | 7 | 36° | 45° | 28.1 |
| ACB3749H7-45/45 | 37 | 49 | 7 | 45° | 45° | 28.8 |
| ACB40508H7-45/90 | 40 | 50.8 | 7 | 4S° | 90° | 26.8 |
| ACB4051H6.5-36/36 | 40 | 51 | 6.5 | 36° | 36° | 24.8 |
| ACB4051H8-36/45 | 40 | 51 | 8 | 36° | 45° | 29.3 |
| ACB4051H7-45/45 | 40 | 51 | 7 | 4S° | 45° | |
| ACB4051SH7-4S/45 | 40 | 51.5 | 7 | 45° | 45° | |
| ACB40518H7-45/45 | 40 | 51.8 | 7 | 45° | 45° | 30.8 |
| ACB40518H8-36/45 | 40 | 51.8 | 8 | 36° | 45° | 32.6 |
| ACB40518H7.5-36/45 | 40 | 51.8 | 7.5 | 36° | 45° | 33 |
| ACB40518H8-45/45 | 40 | 51.8 | 8 | 45° | 45° | 33.1 |
| ACB40518H8-90/90 | 40 | 51.8 | 8 | 90° | 90° | |
| ACB40519H7-45/45 | 40 | 51.9 | 7 | 45° | 45° | 29.6 |
| ACB40519H8-45/45 | 40 | 51.9 | 8 | 45° | 45° | 32.6 |
| ACB4052H6.5-36/45 | 40 | 52 | 6.5 | 36° | 45° | 29.2 |
| ACB4052H7-90/90 | 40 | 52 | 7 | 90° | 90° | 30.9 |
| ACB4052H7-45/45 | 40 | 52 | 7 | 45° | 45° | 31.5 |
| ACB4052H7-36/45 | 40 | 52 | 7 | 36° | 45° | 31.8 |
| ACB4052H7.5-45/45 | 40 | 52 | 7.5 | 45° | 45° | 34.2 |
| ACB4052H8-45/45 | 40 | 52 | 8 | 45° | 45° | 36 |
| ACB40495H6.5-45/45 | 40.5 | 49.5 | 6.5 | 45° | 45° | 21.4 |
| ACB4660H8-45/45 | 46 | 60 | 8 | 45° | 45° | |
| ACB50619H8-36/45 | 50 | 61.9 | 8 | 36° | 45° | |
> APQP: Product quality advanced planning
> SPC: Statistical process control
> MSA: Measurement system analysis
> FMEA: Analysis of potential failure modes and consequences
> PPAP: Production part approval procedure
Clean production environment & Advanced bearing process equipment
| Bearing type | Ball bearing | Material | Ceramic / stainless steel / bearing steel / carbon steel |
| Cage material | iron/nylon/Brass | Rolling element material | steel ball /bearing steel /stainless steel/ glass ceramic |
| Seal material | Iron/rubber/natural rubber | Material of rolling element | steel ball / bearing steel / stainless steel / glass / ceramic |
Our Business involves various industry applications for the standard and special industrial parts, auto parts, engineering machinery parts, our main task and goal is to provide by the factory production the kinds of perfect bearing products, transmission and spare parts, the development of cooperative relationship with customers and to provide customers a variety of services as required.
- We have the most advanced bearing process equipments, CNC automatic facilities and testing instruments.
- We manufacturing ball bearings and mounted bearing units, also provide a strong full range products, including electric motor and components One-stop partnerships products from our audited supply-chain.
- All produtcs are manufactured exclusively by companies with ISO 9001:2008 certified Quality System which use state-of-the-art machines.The quality path starts from begining to deliver and goods' quality trackable
- Optimize customer inventory and reduce cost
- Provide maintenance solutions
1. Can you make custom orders?
A: Yes, the customized LOGO or drawing is acceptable for us.
2. How many samples can you provide? Are the samples free?
A: a). Samples quantity: 1-20 pcs are available.
b) . Free samples: It depends on the model NO., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost.
c). It's better to start your order with Trade Assurance to get full protection for your samples order.
3. How do I select different accuracy levels for the bearing?
| P0/ABEC-1/JIS0 OR P6/ABEC-3/JIS6 | Computer printers, copy machine-feed rollers, micro motors, stepping motors, fan motors, VCR pinch rollers |
| P5/ABEC-5/JIS5 OR P4/ABEC-7/JIS4 | High precision motors, hard disk drive motors, dental spindles, servo motors, encoders, VCR drum spindles, VCR capstan motors, polygonal mirror scanner motors |
| P4/ABEC-7/JIS4 | High frequency spindles, gyro motors, gyro gimbals |
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI227141". Items marked "
" are certified.
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Company Profile
Granville group start from London and gradually oriented to global markets through resource integration, the Granville's businesses are present across five continents. We operate in four industry clusters: Components for Industry and automotive; Machine tools and mechatronics; Energy and New materials, and Healthcare.
GIL, the Granville manufacturer, we manufacture and export a full range of bearings, housed units, power transmission products and automotive aftermarket spare parts.
Granville takes her every effort in purchasing the most advanced bearing process equipemtns, automatic facilities are widely used in the factory and we are keep investing to improve more. The factory covers an area of 58000 square meters, the company has advanced assembly lines and perfect quality testing center. After more than ten years of management and innovation, with more than 120 automatic production lines, various kinds of testing, inspection instruments, with annual production capacity of 160 million sets of reliable high precision quality bearings. With modern compliance management realizes just-in-time System with the real-time monitoring data from a whole line of automated equipment, which goes through production, detection and packaging. Moreover, the raw materials of our products are selectively chose from well-know brands to guarantee our stable quality.
We strictly follow the core of quality management process control:
APQP: Product quality advance planning
SPC: Statistical process control
MSA: Measurement system analysis
FMEA: Analysis of potential failure modes and consequences
PPAP: Production part approval procedure
In order to maximize meet customer needs and market requirements for flexible reaction, Granville research and development, design, manufacture, business integration, almost the whole business process through Granville Mechanical & Electrical Co., Ltd. Exporting to main foreign markets, products are sold all over the world. From conception, to innovation, to improve, we are in new transmission solution innovation is your trustworthy partner.
About Our Factory & Business Background
- Address
- Unit 812, No. 535 Mid Gaolin Road, Xiamen, Fujian, China
- Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
- International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF, DDP, DAP, FCA
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: one month - Nearest Port
- SHANGHAI, XIAMEN, NINGBO
Our Production Capability & Technical Expertise
- Main Products
- Bearings, Machine Tools, CNC Machines, Chains, Sprockets, Transmission Parts, Automotive Spare Part, Automation, in Vitro Diagnostic, Minerals
Our Industry Experience & Global Business Record
- Export Year
- 2012-11-30
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- Can you make custom orders?
- Yes, the customized LOGO or drawing is acceptable for us.
- How many samples can you provide? Are the samples free?
- a). Samples quantity: 1-20 pcs are available. b) . Free samples: It depends on the model NO., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost. c). It's better to start your order with Trade Assurance to get full protection for your samples order.
- How do I select different accuracy levels for the bearing?
- P0/ABEC-1/JIS0 OR P6/ABEC-3/JIS6: Computer printers, copy machine-feed rollers, micro motors, stepping motors, fan motors, VCR pinch rollers. P5/ABEC-5/JIS5 OR P4/ABEC-7/JIS4: High precision motors, hard disk drive motors, dental spindles, servo motors, encoders, VCR drum spindles, VCR capstan motors, polygonal mirror scanner motors. P4/ABEC-7/JIS4: High frequency spindles, gyro motors, gyro gimbals.
- What materials are available for the bearing?
- The bearing is available in Chrome Steel, Stainless Steel, Ceramic, and Bearing Steel options.
- What certifications does the product have?
- The product is certified under ISO 9001, TS 16949, and RoHS standards.
- Is custom packaging available?
- Yes, custom packaging is available upon request.
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