Inner Primary Bearings

9 products

Our range of Inner Primary Bearings for Harley-Davidson delivers smooth power transfer between your engine and transmission. Featuring quality bearings from All Balls, Bare Knuckle Performance, Belt Drives Ltd., Jims, and MCS, we cover models from 1936–2026 across Softail, Dyna, Touring, and Trike platforms. Whether you need bearings for your 2008–2026 modern Touring or classic 1936–1984 four-speed Big Twins, our selection ensures reliable primary drive operation. As an authorised Harley-Davidson dealer, Iron City Motorcycles in Leeds supplies only proven drivetrain components backed by proper warranty support. These bearings support smooth primary chain and belt operation across all Harley-Davidson model families. Browse the full range below.

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Showing 1–9 of 9 PRIMARY COVERS

Bare knuckle performance Bare Knuckle Performance, Overbearing 2.0

Bare Knuckle Performance, Overbearing 2.0

Bare knuckle performance

#23-029-70

£155.34£139.81

Member£132.04-15%

Jims JIMS, 84-06 5-speed primary bearing upgrade kit

JIMS, 84-06 5-speed primary bearing upgrade kit

Jims

#8960

Member£45.59-15%

All Balls All Balls, inner primary bearing & seal kit

All Balls, inner primary bearing & seal kit

All Balls

#25-3103

Member£40.18-19%

Belt Drives Ltd. Mainshaft support bearing (sealed)

Mainshaft support bearing (sealed)

Belt Drives Ltd.

#EPB-100

Member£24.90-15%

All Balls All Balls, inner primary bearing

All Balls, inner primary bearing

All Balls

#20-2037

Member£22.89-19%

MCS MCS, bearing inner primary (open)

MCS, bearing inner primary (open)

MCS

#520090

Member£20.45-15%

All Balls All Balls, inner race only for roller bearing

All Balls, inner race only for roller bearing

All Balls

#40-2430

Member£9.42-19%

All Balls All Balls, inner race only for roller bearing

All Balls, inner race only for roller bearing

All Balls

#40-2337

Member£9.04-19%

All Balls All Balls, inner primary bearing (sealed)

All Balls, inner primary bearing (sealed)

All Balls

#R16-2RS

Member£7.93-19%

Bare knuckle performance Bare Knuckle Performance, Overbearing 2.0

Bare Knuckle Performance, Overbearing 2.0

Bare knuckle performance

#23-029-70

£155.34 £139.81

Member £132.04 -15%

Jims JIMS, 84-06 5-speed primary bearing upgrade kit

JIMS, 84-06 5-speed primary bearing upgrade kit

Jims

#8960

£53.63 £48.27

Member £45.59 -15%

All Balls All Balls, inner primary bearing & seal kit

All Balls, inner primary bearing & seal kit

All Balls

#25-3103

£49.61 £42.66

Member £40.18 -19%

Belt Drives Ltd. Mainshaft support bearing (sealed)

Mainshaft support bearing (sealed)

Belt Drives Ltd.

#EPB-100

£29.29 £26.36

Member £24.90 -15%

All Balls All Balls, inner primary bearing

All Balls, inner primary bearing

All Balls

#20-2037

£28.26 £24.30

Member £22.89 -19%

MCS MCS, bearing inner primary (open)

MCS, bearing inner primary (open)

MCS

#520090

£24.06 £21.65

Member £20.45 -15%

All Balls All Balls, inner race only for roller bearing

All Balls, inner race only for roller bearing

All Balls

#40-2430

£11.63 £10.00

Member £9.42 -19%

All Balls All Balls, inner race only for roller bearing

All Balls, inner race only for roller bearing

All Balls

#40-2337

Member £9.04 -19%

All Balls All Balls, inner primary bearing (sealed)

All Balls, inner primary bearing (sealed)

All Balls

#R16-2RS

Member £7.93 -19%

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