Northrock Flexible Shaft Assembly

One source. All styles. Replacement flexible shaft assemblies for concrete vibrators, made in the USA. Select the style that matches your power unit, then the type, then the length.

Standard shafts are for footings and slabs. Pencil shafts are for tight walls and cells. Some styles use the original manufacturer's own type designation rather than a standard or pencil split, which is how they are labelled here.

Choosing your style

Northrock
Original Northrock fitment.
Standard: 2 ft (25N2), 5 ft (25N5), 7 ft (25N7), 10 ft (25N10), 12 ft (25N12), 14 ft (25N14), 16 ft (25N16), 21 ft (25N21), 25 ft (25N25)
Pencil: 2 ft (25P2), 5 ft (25P5), 7 ft (25P7), 10 ft (25P10), 12 ft (25P12), 14 ft (25P14), 16 ft (25P16), 21 ft (25P21)

Master-Style
Replaces Master-style units.
C Type (Standard): 2 ft (20A2), 5 ft (20A5), 7 ft (20A7), 10 ft (20A10), 14 ft (20A14), 21 ft (20A21)
CS Type (Pencil): 2 ft (20B2), 7 ft (20B7), 14 ft (20B14)

Mikasa / Multi-Quip-Style
Replaces Mikasa / Multi-Quip-style units.
ESW Type (Standard): 3 ft (45C3), 5 ft (45C5), 7 ft (45C7), 10 ft (45C10), 14 ft (45C14), 21 ft (45C21)
ESV Type (Pencil): 3 ft (45B3), 7 ft (45B7), 10 ft (45B10), 14 ft (45B14), 21 ft (45B21)

Oztec-Style
Replaces Oztec-style units.
Standard: 2 ft (30A2), 5 ft (30A5), 7 ft (30A7), 10 ft (30A10), 14 ft (30A14), 16 ft (30A16), 18 ft (30A18), 21 ft (30A21)
Pencil: 3 ft (30B3), 6 ft (30B6), 9 ft (30B9), 15 ft (30B15), 20 ft (30B20)

Stone-Style
Replaces Stone-style units.
Standard: 1 ft (70A1), 3 ft (70A3), 5 ft (70A5), 7 ft (70A7), 10 ft (70A10), 14 ft (70A14), 21 ft (70A21)
Pencil: 1 ft (70B1), 3 ft (70B3), 5 ft (70B5), 7 ft (70B7), 10 ft (70B10), 14 ft (70B14), 21 ft (70B21)

Stow-Style
Replaces Stow-style units.
382V Type (Standard): 2 ft (40A2), 5 ft (40A5), 7 ft (40A7), 10 ft (40A10), 12 ft (40A12), 14 ft (40A14), 18 ft (40A18), 21 ft (40A21)
314 Type (Pencil): 2 ft (40B2), 5 ft (40B5), 7 ft (40B7), 10 ft (40B10), 12 ft (40B12), 14 ft (40B14), 18 ft (40B18), 21 ft (40B21)

Viber-Style
Replaces Viber-style units.
Standard: 1 ft (50A1), 3 ft (50A3), 5 ft (50A5), 7 ft (50A7), 10 ft (50A10), 14 ft (50A14), 21 ft (50A21)

Wacker-Style
Replaces Wacker-style units.
SMS Type (Standard): 1 M (40V3), 2 M (40V6), 3 M (40V10), 4 M (40V13), 5 M (40V16), 7 M (40V23), 9 M (40V30)
SME Type (Pencil): 1 M (40W3), 2 M (40W6), 4 M (40W13)

Wyco-Style
Replaces Wyco-style units.
CK-8900 Type: 2 ft (60A2), 5 ft (60A5), 7 ft (60A7), 10 ft (60A10), 14 ft (60A14), 20 ft (60A20)
CK-9500 Type: 2 ft (60C2), 5 ft (60C5), 7 ft (60C7), 10 ft (60C10), 14 ft (60C14), 20 ft (60C20)

Maintenance

Every 50 hours of operation, remove the inner core, wipe it clean, and re-lubricate with a 1/16 in coating of high-quality lithium grease.

Manufactured in the USA by Northrock Industries.