US 12,240,070 B2
Gearbox case with wear sleeve
John Floyd Bossa, El Reno, OK (US)
Assigned to Mid-States Oilfield Machine LLC, Oklahoma City, OK (US)
Filed by Mid-States Oilfield Machine LLC, Oklahoma City, OK (US)
Filed on Nov. 3, 2023, as Appl. No. 18/386,917.
Application 18/386,917 is a continuation of application No. 17/586,192, filed on Jan. 27, 2022, granted, now 11,806,821.
Application 17/586,192 is a continuation of application No. 16/792,485, filed on Feb. 17, 2020, granted, now 11,261,954, issued on Mar. 1, 2022.
Claims priority of provisional application 62/807,456, filed on Feb. 19, 2019.
Prior Publication US 2024/0066642 A1, Feb. 29, 2024
Int. Cl. B23P 6/00 (2006.01); B23P 19/04 (2006.01); F16C 35/07 (2006.01); F16C 35/077 (2006.01); F16H 1/20 (2006.01); F16H 57/02 (2012.01); F16H 57/021 (2012.01); F16H 57/03 (2012.01); F16H 57/032 (2012.01); F16H 57/00 (2012.01)
CPC B23P 6/00 (2013.01) [B23P 19/04 (2013.01); F16C 35/077 (2013.01); F16H 1/20 (2013.01); F16H 57/021 (2013.01); F16H 57/032 (2013.01); F16H 2057/0068 (2013.01); Y10T 29/49726 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A gearbox comprising:
a shaft bore extending through a gearbox case;
at least one bearing disposed within the shaft bore to support a shaft; and
at least two wear sleeves positioned to protect the gearbox case from being damaged by the at least one bearing;
wherein the at least two wear sleeves form part of the shaft bore; and
wherein the shaft bore has a substantially uniform diameter across its length.