23-029-70 Overbearing 2.0
incl. VAT
Chapter members save 9% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- Bare knuckle performance
- Part Number
- 23-029-70
- OEM Reference
- 35211-36
- Pack Quantity
- Sold as kit
- Category
- Inner Primary Bearings
- VAT Rate
- 20%
About This Product
The Bare Knuckle Performance Overbearing 2.0 is a hardened replacement for the stock mainshaft lock nut, OEM reference 35211-36. A precision ground roller bearing is pressed into its centre. The black oxide finished hexagonal body is laser-etched with the Bare Knuckle Performance branding. It keeps the transmission mainshaft and main drive gear concentric and supports the maindrive gear bushing. It eliminates premature wear and stops mainshaft leaks common on early machines with tin primary housings. The narrower 2.0 version clears all regular stock and aftermarket clutch hubs without interference. It fits 1936 through 1964 Big Twin models. Sold as a kit.
Manufacturer part number: 23-029-70.
Fitment
24 models36-64 Big Twin
Flathead 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1942 | Flathead EL-1000 |
| Harley-Davidson | 1937–1948 | Flathead U-1200 |
| Harley-Davidson | 1938–1948 | Flathead UH-1300 |
| Harley-Davidson | 1938–1946 | Flathead UL-1200 |
| Harley-Davidson | 1937–1945 | Flathead ULH-1300 |
| Harley-Davidson | 1936 | Flathead VL-1200 |
| Harley-Davidson | 1936 | Flathead VLH-1300 |
Knucklehead 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1936–1947 | Knucklehead E-1000 |
| Harley-Davidson | 1936–1948 | Knucklehead EL-1000 |
| Harley-Davidson | 1936–1945 | Knucklehead F-1200 |
| Harley-Davidson | 1936–1947 | Knucklehead FL-1200 |
Panhead 13 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1958–1964 | Duo Glide FL-1200 |
| Harley-Davidson | 1958–1964 | Duo Glide FLF-1200 |
| Harley-Davidson | 1959–1962 | Duo Glide FLH-1200 |
| Harley-Davidson | 1963 | Duo Glide FLHF-1200 |
| Harley-Davidson | 1949–1951 | Hydra Glide E-1000 |
| Harley-Davidson | 1950–1952 | Hydra Glide EL-1000 |
| Harley-Davidson | 1949–1952 | Hydra Glide F-1200 |
| Harley-Davidson | 1949–1957 | Hydra Glide FL-1200 |
| Harley-Davidson | 1953–1956 | Hydra Glide FLE-1200 |
| Harley-Davidson | 1953–1954 | Hydra Glide FLEF-1200 |
| Harley-Davidson | 1953–1957 | Hydra Glide FLF-1200 |
| Harley-Davidson | 1955–1957 | Hydra Glide FLH-1200 |
| Harley-Davidson | 1948 | Panhead F-1200 |
Planning other changes? Find your model in the bike customiser.
Related Products
View all →
All Balls
Inner race only for roller bearing
All Balls
Inner race only for roller bearing
All Balls
Inner primary bearing
All Balls
Inner primary bearing & seal kit
Jims
84-06 5-speed primary bearing upgrade kit
All Balls
Inner primary bearing (sealed)
MCS
Bearing inner primary (open)
More from Bare knuckle performance
View all →
Stainless axle kit. Front wheel
Stainless axle kit. Rear wheel
Stainless axle kit. Rear wheel
Stainless axle kit. Rear wheel
Axle adjuster kit. FXD logo
Axle adjuster plate kit. FXR logo
Jane Doe jockey shift knob, 1.750"
Axle adjuster plate kit. US flag
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.