DESIGN Specifications
DESIGN Specifications
Part Number: 602-5201 Date: December 21, 2010
Revision: A
Product: Wiper Transmission Author: S. Ide
Fit & Function Overview
Windshield wiper connecting rods, links, and transmissions, are parts that link the wiper motor to the wiper arm. Typically they are mounted underneath the front cowl. A wiper transmission is normally mounted on the windshield wiper motor. It can be considered as the gear drive for the windshield wiper. In typical automotive windshield wiper systems, individual wiper arms are attached to corresponding pivot shafts supported on the transmission housings. Motive force is supplied by a drive link to one pivot shaft and movement of the wiper arms is synchronized by a cross link between the pivot shafts. The transmission housings have mounting means to the body panel.
Design Objective:
Vendor will document performance and dimensions based on analysis of the supplied reference sample(s) and based on the included technical & material specifications given below. The vendor will submit the documentation for approval by Dorman Engineering Services. The vendor will produce the requested product based on the approved vendor documentation. The vendor will provide process information and material certification for their submittedproduct sample. Dorman Engineering Services will review and approve all vendor documentation prior to accepting afirst article (FAI) sample(s) for inspection.
Patent Disclaimer:
Vendor is responsible for performing patent search to identify any relevant US patent that applies or potentially applies to the reference sample provided. A report of the research must be provided to Dorman Engineering Services at the time of the drawing submittal. The patent search report must include details of:
· Research procedure
· Patent numbers which were identified as being applicable or potentially applicable
· The design differences contained in the vendor design and how they eliminate any patent infringements.
In the event any conflicts and/or discrepancies exist in the information provided contact Dorman Products for clarification. Final approval concerning any conflicts and/or discrepancies is the decision of Dorman Products.
Reference Samples:
The following Approved Reference Sample is part of this specification: Original Equipment.
Reference Documents:
Note: International equivalents to American standards such as SAE may be used with Dorman Products Engineering Services review and approval.
SAE J 120: Rubber Rings for Automotive Applications
SAE J 198: Windshield Wiper Systems—Trucks, Buses, and Multipurpose Vehicles
SAE J 200: Chemical Compositions of Automotive Rubber
SAE J 403: Chemical Compositions of SAE Carbon Steel
SAE J 405: Chemical Compositions of SAE Wrought Stainless Steels
SAE J 412: General Characteristics & Heat Treatments of Steels
SAE J 474: Electroplating and Related Finishes
SAE J 1345: Automotive Plastic Parts Specification
Materials and Finish Definition: As set forth by California State Proposition 65: The Safe Drinking Water and Toxic Enforcement Act of 1986; Material, Paint or other type of coatings are not to exceed <0.06% (600 ppm) lead by weight.
(Examples: PVC, powder coat)
Metal
Component Description: 2. Pivot Housing,
Material: Aluminum
Grade: ANSI A360.0 Per SAE J 452
Component Description: 3. Wiper Mounting Knobs, 4. Mounting Bracket
Material: Low Carbon Steel
Grade: SAE 1010-1020
Finish: Zinc plated with clear chromate
Component Description: 5. Pivot Arm
Material: Medium Carbon Steel
Grade: SAE 1045
Hardness: 12 HRC
Finish: Zinc plated with clear chromate
Component Description: 6. Pivot shaft
Material: Medium Carbon Steel
Grade: SAE 1050 Tempered 1200°F
Hardness: HRC 35
Finish: Zinc plated with clear chromate
Component Description: 7. Ball Stud
Material: Medium Carbon Steel
Grade: SAE 1045 Annealed
Hardness: 12 HRc
Finish: Polished, Zinc plated with clear chromate
Component Description: 8. Pivot Bushings
Material: Bronze powder metal, Oil impregnated
Grade: SAE 841, CT-1000
Hardness: HR15TW 53 (HRBW <30)
Component Description: 9. Retainer Clip, 10. Wave Washer
Material: Spring Steel
Finish: Black Oxide
Component Description: 11. Tube, 12. Flat Washers
Material: Low Carbon Steel
Grade: SAE 1010 – 1020
Finish: Zinc plated with clear chromate
Zinc plated components are to be plated per ASTM B633, minimum plating thickness 7.5um
Chromate using trivalent chromium, thickness range 0.3um to 0.5um (Hexavalent Chromium not permitted)
Rubber
Component Description: 13. O-ring,
Material: NBR
Color: Black
Durometer: Shore A 75-80
Component Description: 15. Shaft seal
Material: NBR Foam
Color: Black
Component Description: 16. Rubber Washer
Material: NBR
Color: Black
Durometer: Shore A 65-70
Liquid
Component Description: Grease
Material: “Conoco Calcium S” or equivalent
Exception to Sample:
· Alternative material use is acceptable, but only with the approval of Dorman Products Engineering Services.
· Alternative finishes are acceptable, but only with the approval of Dorman Products Engineering Services.
Dimensions and Measurements:
This section contains information regarding significant dimensions, characteristics, or measurements that that are required to manufacture this product.
· Part or Assembly Weight: 1550g
· Unless otherwise specified, all part dimensions to match the supplied samples.
· Unless otherwise specified, dimensions specified in Bid Package are for reference only.
· Surface finishes to match supplied samples.
Images of Product Sample:
Figure 1. Assembly Top Face
Figure 2. Assembly Bottom Face
Figure 3. Pivot Assembly Top
Figure 4. Pivot Assembly Bottom
Figure 5. Mounting Bracket
Figure 6. Pivot Housing Assembly Top (Representative)
Figure 7. Pivot Arm Assembly Top and Bottom
Process & Performance Information:
This section contains information regarding significant performance requirements and / or manufacturing processes that are required to manufacture this product.
· All Graded / Class hardware are to be manufactured and in compliance with the United States Fastener Quality Act.
(http://ts.nist.gov/WeightsAndMeasures/fqa.cfm)
· Zinc plated and powder coated parts to be tested in accordancewith ASTM B117.
Minimum corrosion resistance:
96 hours: no white corrosion
240 hours: no red corrosion of base metal
· Part must withstand exposure to -40 to 120°C without loss in performance or construction.
· A water-tight seal must be created between the 2. Pivot Housings and the 6. Pivot shaft to prevent water from entering the housing resulting in corrosion or freezing of the Pivot shaft.
· The arms need to be able to rotate freely without binding.
Critical Characteristics:
This section contains information significant to the proper function and durability of the product.
· Items that are critical to proper product function, durability, safety, etc. are to be listed or graphically represented in this section.
· Materials – Materials of all components must match the properties and composition of the materials used in the sample part. Material Certificates from a certified laboratory are required for all components.
· Riveting – Effective diameters, axial lengths, riveting/assembly operation, and material.
· Apply a lite coating of grease to all moving surfaces and pivot points.
· Force required to pull item 3. Wiper Mounting Knobs off of item 6. Pivot shafts shall be at least 1200 lb (5300 N) force.
·
Safety Identification:
The National Highway Traffic Safety Administration (NHTSA) has legislative mandate of United States Code of Federal Regulations Title 49: Chapter V to issue Federal Motor Vehicle Safety Standards (FMVSS) and Regulations to which manufacturers of motor vehicles and items of motor vehicle equipment must conform and certify compliance.
The link to United States Code of Federal Regulations Title 49: Chapter V
http://www.nhtsa.gov/cars/rules/standards/FMVSS-Regs/pages/Part571.htm
Link to full versions of all FMVSS Standards
http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&sid=b2be4ada7f14072ab2769203a2b45678&tpl=/ecfrbrowse/Title49/49cfr571_main_02.tpl
Items listed below have been identified as being included in or part of a vehicle system under United States Code of Federal Regulations Title 49: Chapter V, Parts 571.101 through 571.500
If product is listed below as a safety item, the FMVSS testing procedure is to be used in part or in whole in the FAI & Quality requirements document. It is the discretion of the Product and/or FAI Engineer to determine if the testing is to be completed by the vendor and certified or completed at the time of the FAI inspection.
Standard #104: Windshield Wiping and Washing Systems
Wiper transmissions
Standard 4.1.2 states the minimum required area of the windshield that must be wiped clean by the wiper assembly. To comply to this standard, the range of motion of the wiper transmission must be equal to the range of motion of the OE wiper transmission.
Marking and Identification:
· Unless otherwise specified, part is to be marked in accordance to Dorman Products Inc. Marking Requirements.
· Unless otherwise specified; part numbers, logos, recycling marks, date codes or other marking found on the approved product samples are not to be copied.
· Part to be marked with the Dorman Wings Logo, Country of Origin, date code, and part number on locations shown below.
Ozone Depleting Chemicals (ODC) Compliance:
· The following Ozone Depleting Chemicals are not to be used in the cleaning or manufacturing of printed circuit boards or products with soldering:
· Certification letter is required and is to describe in detail, the new alternative product or the replacement technology used instead of the ODC process.The description is to include the type of equipment involved, the month and year the new technology was placed in service, and the name and address of the firm from whom the new technology was purchased.
o Additional requirements of the Supplier Letter:
§ Be from the supplier on the supplier’s company letterhead, which includes the address and phone number of the foreign manufacturer.
§ Addressed to Dorman Products Inc.
§ Signed by an officer or an authorized representative of the company.
Restriction of Hazardous Substances Directive (RoHS) Compliance:
· All solder and components used in the manufacturing of printed circuit boards are to be RoHS compliant.
· The RoHS controlled materials are to be within the allowable amount listed below.
· Certification letter is required showing RoHS compliant components.
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