KK8 - KK40

KK No Keyways, plain bore.

Type KK is a sprag type freewheel integrated into a 62 series ball bearing (except sizes 8 and 40). It is bearing supported, delivered grease lubricated and protected against dust of more than 0,3 mm. The use of additional “nylos” type seals is recommended especially when the working temperature exceeds 50°C. Oil bath lubrication is also possible.

All the KK versions are equipped with “formchromed” sprags. This process increases several times the overrunning life time. Torque transmission is ensured by a press fit assembly into a rigid steel housing with N6 tolerance, and onto a shaft with n6 tolerance. For this reason, the initial bearing radial clearance is set at C5.


There are no downloads for this product.

Code Your Part No Description size(mm) Price Quantity
KK8 Sprag Clutch CSK8/CKK8 8mm x 22mm x 9mm KK8 (CSK8) 8mm x 22mm x 9mm £49.45 (inc VAT) Each
£41.21 (exc VAT) Each
KK15 Sprag Clutch CSK15/CKK15 15mm x 35mm x 11mm KK15 (CSK15) 15mm x 35mm x 11mm £64.69 (inc VAT) Each
£53.91 (exc VAT) Each
KK20 Sprag Clutch CSK20/CKK20 20mm x 47mm x 14mm KK20 (CSK20) 20mm x 47mm x 14mm £51.22 (inc VAT) Each
£42.68 (exc VAT) Each
KK25 Sprag Clutch CSK25/CKK25 25mm x 52mm x 15mm KK25 (CSK25) 25mm x 52mm x 15mm £57.18 (inc VAT) Each
£47.65 (exc VAT) Each
KK30 Sprag Clutch CSK30/CKK30 30mm x 62mm x 16mm KK30 (CSK30) 30mm x 62mm x 16mm £75.14 (inc VAT) Each
£62.62 (exc VAT) Each
KK35 Sprag Clutch CSK35/CKK35 35mm x 72mm x 17mm KK35 (CSK35) 35mm x 72mm x 12mm £79.43 (inc VAT) Each
£66.19 (exc VAT) Each
KK40 Sprag Clutch CSK40/CKK40 40mm x 80mm x 18mm KK40 (CSK40) 40mm x 80mm x 18mm £100.92 (inc VAT) Each
£84.10 (exc VAT) Each