The National Park Service (NPS) shall be soliciting for replacement gears for a Grizzly Gear Reduction Unit. The solicitation calls for specific brand name products that are peculiar to one manufacturer The Gear Works is the original product manufacture of this Grizzly 6:1 Gear Reduction Unit. The Gear Works has all the required specifications on gear size, material hardness, gear angle, shaft size, shaft hardness and tolerance specifications. The Gear Works is the sole proprietor of this Gear Reduction Unit. The Gear Works has all patents on the Grizzly model 500 6:1. Yellowstone National Park is asking for the exact gears replacements to insure the operation of this unit. The Gear Reduction Unit is a high RPM, high torque unit used on our rotary snow plows. The following is a description of the requirement: The Gear Works name brand replacement parts for a Model 500 6 to 1 gear reduction grizzly. The original manufacture of the gear reducer is The Gear Works and all part numbers for replacement gears and related parts are Gear Work part numbers. 1. 230291 planet pinion 6:1 model 500 (Quantity needed 3 each)2. 231592 ring gear 6:1 model 500 (Quantity needed 1 each)3. 230052 planet pin model 500 (Quantity needed 3 each)4. 230360 planet carrier keyed mod 500 (Quantity needed 1 each)5. 316035 OR PKR 2-279 .139 12.984ID (Quantity needed 2 each)6. 310004 CNRB WJ162116 (Quantity needed 6 each)7. 230062 Thrust washer 5:1 6:1 7:1 MOD500 (Quantity needed 1 each)8. 317004 Roll pin 3/8x1.25 (Quantity needed 3 each)9. 316004 LS NAT 416556 4.25x5.25 (Quantity needed 1 each)10. 231596 Ring gear 4:1 model 300 (Quantity needed 1 each) Any comments on this requirement should be submitted in writing to
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