SKU: 58056084597

ACL Race Series Bearings BMW N55B30 2979cc Inline6 DOHC 4v Turbo, Main Bearing, extra oil clearance (0.025mm) 7M1397HX

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Description

ACL Race Series Bearings BMW N55B30 2979cc Inline6 DOHC 4v Turbo, Main Bearing, extra oil clearance (0.025mm) 7M1397HXABOUT ACL For over 70 years precision engine bearings have been manufactured in Launceston, Tasmania, Australia. During this time ACL has been a major OEM supplier to the Australian & International automotive industry, whilst providing an extensive replacement product range for the global aftermarket. Today ACL produces one of the largest aftermarket range of engine bearings and has a global reputation for robust metallurgy, quality, precision,

ABOUT ACL

For over 70 years precision engine bearings have been manufactured in Launceston, Tasmania, Australia.

During this time ACL has been a major OEM supplier to the Australian & International automotive industry, whilst providing an extensive replacement product range for the global aftermarket.

Today ACL produces one of the largest aftermarket range of engine bearings and has a global reputation for robust metallurgy, quality, precision, innovation and performance.

ACL has a long and rich history in motorsport – it is in our DNA. The ACL RACE Series Performance Engine Bearings of today has a strong pedigree in motor racing that traces its roots back to the 1960’s with the manufacture of engine bearings for use in the world conquering Brabham Formula 1.

Further experience in the Australian Supercars Championship, drag racing, speedway, drifting & rally with its range of RACE Series Performance Engine Bearings being the first choice for discerning engine builders the world over.

The ACL RACE Series Performance Engine Bearing offering covers over 200 varied engine applications covering a wide range of performance engine bearings for Australian, American, Japanese, Korean & European applications. The range continues to expand to cover new engine releases.

The company has a high degree of vertical integration encompassing: tooling & product design, bearing strip manufacture, tooling & machine manufacture as well as the complex manufacturing processes & systems required to produce the final product.

ACL's Business Management Systems hold the internationally recognized ISO9001: 2015 Quality Management System, ISO14001: 2015 Environmental Management System & ISO451001: 2018 Occupational Health & Safety Management System certification.

Description: BMW N55B30 2979cc Inline6 DOHC 4v Turbo

Capacity: 2979 CC

Cylinders: 6

Bore Size: 3,3071 in / 84 mm

Stroke: 3,5276 in / 89,6 mm

FEATURES

  • HIGH STRENGTH OVERLAY PLATE with reduced thickness for improved fatigue properties
  • HARDENED STEEL BACKS on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
  • INCREASED CRUSH for improved bearing retention
  • ELIMINATION OF FLASH PLATING on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
  • INCREASED ECCENTRICITY to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
  • 3/4 GROOVED MAIN BEARINGS to optimize bearing load carrying surface area and oil flow to the conrod bearings.
  • TIGHT CONSISTENT WALL TOLERANCES to help you maintain consistent clearances.
  • ENLARGED ID CHAMFERS on bearing edges where required to accommodate large fillet radius on performance crankshafts.
MAIN BEARING - STDHX - EXTRA OIL CLEARANCE SET (-0.025MM)
  • High performance Tri metal engine bearings
  • Designed to withstand higher RPM conditions
  • High strength overlay plate with reduced thickness for improved fatigue properties



    Specifications for STD size only

    Sizes STD
    Oil Clearance
    Half Type Upper & lower
    Material F780
    Min. Std Shaft Size 64,961 mm / 2.5575 in
    Max. Std Shaft Size 64,98 mm / 2.5583 in
    Min. Std Tunnel Size 70 mm / 2.7559 in
    Max. Std Tunnel Size 70,019 mm / 2.7566 in
    Max Wall at Crown 2,495 mm / 0.0982 in
    Max Overall Length
    19,85 mm / 0.7815 in (1397HX)
    24,01 mm / 0.9453 in (1399HX(F))
    18,85 mm / 0.7421 in (1398HX)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 58056084597

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Snow Girl
Lake Worth, US
★★★★★ 5
Lovely, Soft and light blanket, perfect for spring, summer night.
Color: Pink Ribbed, Size: Throw(50"x60")
Lovely light blanket. I like it so much, I bought 2 more.
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Reviewed in the United States on May 31, 2026
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Gail
Grantham, US
★★★★★ 5
A warm hug from this fantastic blanket!
Color: Cream, Size: Throw(50" X 60")
This is my go to blanket when I want to cozy up on the couch. So soft and warm, it’s like snuggling a hug! Washes well and lasts forever years. I replaced mine after 4 years with the same thing in a different color option! Perfect size to cover up and also a nice accent piece on the back of the couch.
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Reviewed in the United States on April 28, 2026
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lisa r haney
Waukegan, US
★★★★★ 5
In Awe
Color: Tie-dye Taupe, Size: Throw(50" X 60")
this is one of my favorite blankets I’ve ever ordered from Amazon! We use it on our couch. The colors are absolutely beautiful and stunning. It looks very earthy and kind of grounds my living room decor. It is very soft and cozy as well so it serves as many functions in my room! Probably will order another one soon for the other chair. The quality is superb.
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Reviewed in the United States on May 22, 2026
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laney
San Leandro, US
★★★★★ 5
The best ever made by anyone is the super, soft, faux fur throw/blanket by BEDSURE!
Color: Black, Size: Twin(60" X 80")
I received my Bedsure super soft Faux Fur twin blanket on 2/3/26. I ordered the black in the twin, 60” x 80” because I love to wrap a throw around me & a regular throw is just not large enough to keep me comfortable. Bedsure bedding or relaxing throws is never a bad choice. I’ve purchased numerous bedding collections & was amazed at the quality of their collections & I will NEVER buy anything BUT BEDSURE bedding. This Bedsure super soft Faux Fur, double sided twin size blanket is absolutely gorgeous & beyond my expectations even though the brand is BEDSURE. The item came nicely packaged & with instructions to just put in the dryer on low to fluff up the blanket which I did & it came out so super soft & elegant. This awesome faux fur blanket is the softest that I’ve ever had. I’m so glad that I read the reviews to help me decide what size to order & the twin size is perfect for me. You can never go wrong with BEDSURE bedding or throws. The Black Faux Fur twin blanket looks elegant on the back of the couch or chair. If I could give this product 10 stars I would. This item was an amazing value for the money. There was no smell to the blanket at all & the quality is fantastic; I’ve never had anything so super soft & is machine washable & can be dried in the dryer. The gorgeous fabric & depth in color is so rich & awesome.
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Dorothy Rosa Durkee
San Leandro, US
★★★★★ 5
Superb — thick, soft, fluffy, warm. My favorite!
Color: Cream, Size: Throw(50" X 60")
I’m a big fan of Bedsure products—I own and enjoy several. But this one’s my favorite: thick, soft, fluffy, just right. High quality fabric, carefully sewn, washes and dries like a dream.
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Reviewed in the United States on April 20, 2026

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