1. The BB type is installed by press-fitting, and the function of the bearing and clutch is obtained by providing the proper interference margin. The shaft and housing must be finished to the recommended dimensions shown on each product page. Insufficient interference margin may result in loss of torque transmission.
2. When installing sprockets, gears, etc. into a housing, apply force to the outer race to press it in. At that time, insert another ball bearing. (See Fig. 1 )
3. When installing on the shaft, press-fit the ball bearing assembled in the housing into the inner race of the clutch while applying load. (See Fig. 2 )
4. When pressing the Cam Clutch into the housing and shaft at the same time, avoid applying load only to the inner or outer race. Do not hammer or apply other shock to the clutch.
5. If foreign matter gets inside the cam clutch, the function of the cam clutch may be impaired. Please handle with care and take sufficient measures to protect against dust.
6. Grease (ExxonMobil Japan Beacon 325J) is pre-filled and can be used as is. Operating temperature range: –30°C to +80°C.
7. When using with oil lubrication, wash off the grease before use. Click here for oil brands. Keep the oil level above the shaft center.
8. Never use oil or grease containing extreme pressure additives as they may cause the clutch to slip.
BB Series 1K-K Type (Inner Race with Keyway ) Handling Precautions
BB Series 2K-K Type (Inner & Outer Races with Keyways ) Handling Precautions
1. The BB-1K-K type has a slip fit with the shaft and a press fit with the housing. Torque is transmitted through the interference with the housing, so the housing and wall thickness must be finished to the recommended dimensions shown on each product page. Insufficient interference margin may result in loss of torque transmission.
2. The BB-2K-K type has a slip fit with the shaft and an intermediate fit with the housing. Use the supplied key to fix it.
3. When installing a sprocket or gear into the housing, apply pressure evenly to the outer race to press in the BB-1K-K type, and fix the BB-2K-K type using the supplied key.
Do not hammer or apply other shock to the clutch. At that time, insert another ball bearing. (See Fig. 1 )
4. When installing on a shaft, use the attached dedicated key to fix it. Keep a clearance between the top of key and keyway.
5. The standard for keys and keyways is DIN6885.3. However, the keyway depth on the inner race side of BB25-1K-K and BB25-2K-K is 0.5mm shallower than the standard value. Therefore, make the keyway on the shaft side 0.5 mm deeper. The standard for the inner race side key and keyway of BB40-1K-K and BB40-2K-K is DIN6885.1.
6. If foreign matter gets inside the cam clutch, the function of the cam clutch may be impaired. Please handle with care and take sufficient measures to protect against dust.
7. Grease (ExxonMobil Japan Beacon 325J) is pre-filled and can be used as is. Operating temperature range: –30°C to +80°C.
8. When using with oil lubrication, wash off the grease before use. Click here for oil brands. Keep the oil level above the shaft center.
9. Never use oil or grease containing extreme pressure additives as they may cause the clutch to slip.
BB Series 2GD Type (With rubber contact seal on both sides ) Handling Precautions
1. The BB-2GD type is installed by press-fitting, and the function of the bearing and clutch is obtained by providing the proper interference margin. The shaft and housing must be finished to the recommended dimensions shown on each product page. Insufficient interference margin may result in loss of torque transmission.
2. When installing sprockets, gears, etc. into a housing, apply force to the outer race to press it in. At that time, insert another ball bearing. (See Fig. 1 )
3. When installing onto the shaft, press the housing (with clutch already installed) while applying a load to the inner race of the clutch. (See Fig. 2 )
4. When pressing the Cam Clutch into the housing and shaft at the same time, avoid applying load only to the inner or outer race. Do not hammer or apply other shock to the clutch.
5. Grease (ExxonMobil Japan Beacon 325J) is pre-filled and can be used as is. Operating temperature range: –30°C to +80°C.
BB Series 2GD1K-K Type (Rubber Contact Seals on Both Sides, Inner Race with Keyway. ) Handling Precautions
1. The fit with the shaft is a slip fit and the fit with the housing is a press fit. Torque is transmitted through the interference with the housing, so the housing and wall thickness must be finished to the recommended dimensions shown on each product page. Insufficient interference margin may result in loss of torque transmission.
2. When installing sprockets, gears, etc. into a housing, apply force to the outer race evenly to press it in. Do not hammer or apply other shock to the clutch. At that time, insert another ball bearing. (See Fig. 1 )
3. When installing on a shaft, use the attached dedicated key to fix it. Keep a clearance between the top of key and keyway.
4. The standard for keys and keyways is DIN6885.3. However, the keyway depth on the inner race side of BB25-2GD1K-K is 0.5 mm shallower than the standard value. Therefore, make the keyway on the shaft side 0.5 mm deeper. The standard for the inner race side key and keyway of BB40-2GD1K-K is DIN6885.1.
5. Grease (ExxonMobil Japan Beacon 325J) is pre-filled and can be used as is. Operating temperature range: –30°C to +80°C.