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[China]
Trade Verify
Address: Liudao Industrial Pak, Yaoguan Town, Wujin District, Changzhou city, Jiangsu Province, 213102
Contact name:Ellen Zhang
Changzhou Suma Precision Machinery Co., Ltd |
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Verified Suppliers
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BB25 One Way OD 52MM Sprag Cam Clutch Bearing
Feature
1. BB series Cam Clutch is designed for press fit installation.
2. BB-1K-K and BB-2GD 1K-K series have a keyway on the inner race.
Keyways, except size 25 are
manufactured to DIN 6885. 3, BB40-1K-K and BB40-2GD 1K-K are
manufactured to DIN 6885. 1.
3. BB-2K-K series has a keyway on both the inner and outer race.
“-K” means keys shipped together with Cam Clutch.
4. Correct interference dimensions at the shaft and the housing
must be maintained to obtain maximum bearing and clutch
performance.
5. Refer to the table for tolerance of the shaft and housing for
each series.
6. BB, BB-1K and BB-2K Clutches, bearing supported and delivered
with grease have dust seal protection
against particles of 0.25mm and over, whereas BB-2GD and BB-2GD-1K
clutches, 5mm wider than standard BB series, have special lip seals
for effective protection against any dust.
7. The arrow on the inner race shows the direction of inner race
engaging.
8. To install the clutch, use a press tool of the appropriate
diameter to apply even pressure over the entire face of the inner
and outer race.
9. Do not hammer or apply other shock to the clutch.
10. Make sure the housing has enough strength to withstand the
pressure required for the press fitting installation of the Clutch.
11. Operating temperature range: –30°C to +100°C (Consult us for
the temperature that exceeds this range).
Technical Datas
| Item | BB25 |
| Material | GCr15 |
| Outer dia. | 52 mm |
| Bore size | 25 mm |
| Torque Capacity | 78 Nm |
| Max. Overrunning(inner race) | 1400 r/min |
| Max. Overrunning(outer race) | 2500 r/min |
| Port | Shanghai;Ningbo |
| Delivery time | 10-15 days |
Dimensions and Capacities
| odel | Torque Capacity | Max. Overrunning | Drag Torque (N·m) | A | B | C | D | r | Weight (N) | Bearing Loads | ||||||
| Inner Race | Outer Race | BB BB-1K-K BB-2K-K | BB-2GD BB-2GD 1K-K | BB BB-1K-K BB-2K-K | BB-2GD 1K-K | BB BB-1K-K BB-2K-K | BB-2GD 1K-K | BB BB-1K-K BB-2K-K | BB-2GD BB-2GD 1K-K | Cr | Cor | |||||
| N·m | r/min | r/min | N | N | ||||||||||||
| BB15 | 29 | 3600 | 2000 | 0.01 | 0.04 | 11 | 16 | 35 | 15 | 32.6 | 32.45 | 0.6 | 50 | 70 | 5950 | 3230 |
| BB17 | 43 | 3500 | 1900 | 0.01 | 0.05 | 12 | 17 | 40 | 17 | 36.1 | 36.45 | 0.6 | 80 | 100 | 7000 | 3700 |
| BB20 | 61 | 3000 | 1600 | 0.014 | 0.055 | 14 | 19 | 47 | 20 | 41.7 | 42.35 | 1 | 120 | 150 | 8500 | 4900 |
| BB25 | 78 | 2500 | 1400 | 0.017 | 0.055 | 15 | 20 | 52 | 25 | 47.1 | 47.05 | 1 | 150 | 200 | 10700 | 6300 |
| BB30 | 140 | 2000 | 1100 | 0.03 | 0.058 | 16 | 21 | 62 | 30 | 56.6 | 55.6 | 1 | 230 | 280 | 11900 | 7900 |
| BB35 | 173 | 1800 | 1000 | 0.034 | 0.06 | 17 | 22 | 72 | 35 | 64 | 64.6 | 1.1 | 320 | 410 | 13500 | 9700 |
| BB40 | 260 | 1800 | 900 | 0.04 | 0.08 | 22 | 27 | 80 | 40 | 71 | 71.6 | 1.1 | 400 | 600 | 14500 | 11700 |
Note:
Model No. marked on the inner race is only “K” for both “1K” and “2K”. (Example: the mark “BB25-K” for both BB25-1K and BB25-2K)
Tolerance for Shaft and Housing
| Model | Shaft Dia. | Housing Dia. | |
| BB15 | BB15-2GD | 15+0.023+0.012 | 35–0.012–0.028 |
| BB17 | BB17-2GD | 17+0.023+0.012 | 40–0.012–0.028 |
| BB20 | BB20-2GD | 20+0.028+0.015 | 47–0.012–0.028 |
| BB25 | BB25-2GD | 25+0.028+0.015 | 52–0.014–0.033 |
| BB30 | BB30-2GD | 30+0.028+0.015 | 62–0.014–0.033 |
| BB35 | BB35-2GD | 35+0.033+0.017 | 72–0.014–0.033 |
| BB40 | BB40-2GD | 40+0.033+0.017 | 80–0.014–0.033 |
| Model | Shaft Dia. | Housing Dia. | |
| BB15-1K-K | BB15-2GD 1K-K | 15–0.008–0.028 | 35–0.012–0.028 |
| BB17-1K-K | BB17-2GD 1K-K | 17–0.008–0.028 | 40–0.012–0.028 |
| BB20-1K-K | BB20-2GD 1K-K | 20–0.010–0.031 | 47–0.012–0.028 |
| BB25-1K-K | BB25-2GD 1K-K | 25–0.010–0.031 | 52–0.014–0.033 |
| BB30-1K-K | BB30-2GD 1K-K | 30–0.010–0.031 | 62–0.014–0.033 |
| BB35-1K-K | BB35-2GD 1K-K | 35–0.012–0.037 | 72–0.014–0.033 |
| BB40-1K-K | BB40-2GD 1K-K | 40–0.012–0.037 | 80–0.014–0.033 |
| Model | Shaft Dia. | Housing Dia. |
| BB15-2K-K | 15–0.008–0.028 | 35–0.018–0.002 |
| BB17-2K-K | 17–0.008–0.028 | 40–0.018–0.002 |
| BB20-2K-K | 20–0.010–0.031 | 47–0.022–0.003 |
| BB25-2K-K | 25–0.010–0.031 | 52–0.022–0.003 |
| BB30-2K-K | 30–0.010–0.031 | 62–0.022–0.003 |
| BB35-2K-K | 35–0.012–0.037 | 72–0.025–0.006 |
| BB40-2K-K | 40–0.012–0.037 | 80–0.025–0.006 |
Dimensions of Keys and Keyways
| Model | b2js10 | t1 | t2 | b1js9 | t | Inner race Key b×h×length | Outer race Key b'× h' ×length | |
| BB15-1K-K | BB15-2GD— 1K-K | 5.0 | 1.9 | 1.2 | — | — | — | — |
| BB15-2K-K | - | 2.0 | 0.6 | 5x3x11 | 2x2x11 | |||
| BB17-1K-K | BB17-2GD— 1K-K | 5.0 | 1.9 | 1.2 | — | — | — | — |
| BB17-2K-K | - | 2.0 | 1 | 5x3x12 | 2x2x12 | |||
| BB20-1K-K | BB20-2GD— 1K-K | 6.0 | 2.5 | 1.6 | — | — | — | — |
| BB20-2K-K | - | 3.0 | 1.5 | 6x4x14 | 3x3x14 | |||
| BB25-1K-K | BB25-2GD— 1K-K | 8.0 | 3.6 | 1.5 | — | — | — | — |
| BB25-2K-K | - | 6.0 | 2 | 8x5x15 | 6x4x15 | |||
| BB30-1K-K | BB30-2GD— 1K-K | 8.0 | 3.1 | 2.0 | — | — | — | — |
| BB30-2K-K | - | 6.0 | 2 | 8x5x16 | 6x4x16 | |||
| BB35-1K-K | BB35-2GD— 1K-K | 10.0 | 3.7 | 2.4 | — | — | — | — |
| BB35-2K-K | - | 8.0 | 2.5 | 10x6x17 | 8x5x17 | |||
| BB40-1K-K | BB40-2GD— 1K-K | 12.0 | 5.0 | 3.3 | — | — | — | — |
| BB40-2K-K | - | 10.0 | 3 | 12x8x22 | 10x6x22 | |||
Note:
The dimension of t2 for BB25-1K-K, BB25-2K-K and BB25-2GD 1K-K is 0.5 mm shallow compared to
DIN 6885. 3.
Process the keyway on the shaft 0.5 mm deeply to use DIN standard
key.
All other models are dimensionally interchangeable with
competitors.
Lubrication
1. Since grease is already applied before delivery, there is no
need to apply grease before use.
2. If the clutch is used with an oil lubricant, the oil lubrication
should be applied inside the unit always.
3. Do not use greases or lubricants with EP additives.
Mounting Example
Pictures
