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Shaft Key, 5/16 x 1-1/8

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Description & Features

Designed for use with Eaton Vickers 35M Series hydraulic pumps and motors, this Shaft Key, 5/16 x 1-1/8 provides the precise mechanical coupling between shaft and drive component required for reliable torque transmission. Manufactured under the Eaton Vickers brand, now part of Danfoss Power Solutions, it is a genuine OEM replacement part suited to service and rebuild applications.

The 5/16 x 1-1/8 inch dimensions correspond directly to the keyway specifications of compatible 35M Series units, making it a direct fit for field repairs and scheduled maintenance. As a small but critical drive component, using the correct key ensures proper shaft alignment and prevents premature wear on mating surfaces.

SKU: 217596

Supplier Part Number (MPN): 217596

Alternate Part Numbers: C1BC42

Specifications

Brand
DANFOSS POWER SOLUTIONS II LLC (VICKERS)
Brand
Danfoss Power Solutions
Pack Size
1.00
UOM
EA
Supplier Part Number
217596
Alternate Part Numbers
Alternate Part Number C1BC42
Product Weight
0.03 lbs

Related Documents

Product Questions & Answers (2)

Question by: Shawn J on Mar 22, 2026, 7:16 AM
got a 35M series setup, is this the right size key or am i gonna be off a hair
Answer by: Customer Support on Mar 23, 2026, 4:38 PM
For a 35M Series Shaft Key application, this part is the 5/16 x 1-1/8 size, with a catalog number of C1BC42.
Question by: Diane S on Jun 12, 2025, 3:14 PM
replacement key for a 35M series unit, is this the right one to grab?
Answer by: Customer Support on Jun 14, 2025, 1:27 PM
For the Eaton Vickers 35M Series, yes, this is the correct shaft key. It runs 5/16 by 1-1/8 inches and carries the catalog number C1BC42 under the Danfoss Power Solutions umbrella, which is the current parent brand for Eaton Vickers components. If your existing key matches those dimensions and your pump or motor is in that series, this is the part you want.